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Microcontroller interface and supervisory functions

This section describes the connections between the device and the microcontroller.

Figure 8

shows that the microcontroller and the device use several signals for communication and for mutual

monitoring of correct operation. An SPI configures the device and monitors status information. A dedicated

interrupt signal of the device notifies the microcontroller about any interaction required. To ensure safe

operation of the microcontroller a watchdog trigger line (WDI) is available. The device can use a reset-output

signal (ROT) to reset the microcontroller if required.

Series

Protection

resistors

µC

SPI

Reset

Control

Window

Wacthdog

Interrupt Generator

Reset Generator

ROT

WDI

SDO

SDI

SCL

SCS

INT

IOVDD

TRIGGER OUTPUT

INTERRUPT INPUT

µC

TLF30681

Figure 8

Interface between device and microcontroller

7.1

Microcontroller interface supply IOVDD pin

The device can handle microcontrollers with different IO supply voltages. This is accommodated by a dedicated

supply pin (IOVDD) at which the IO supply voltage is externally supplied to the device. This voltage then drives

the logic output pins to the microcontroller. It is also used to determine the input thresholds for the input cells.

The affected pins are:
•

SCS

•

SCL

•

SDI

•

SDO

•

INT

•

ROT

OPTIREG

™

PMIC TLF30681QVS01

Power management IC

Microcontroller interface and supervisory functions

Datasheet

Rev. 1.0

2020-04-08

Содержание OPTIREG TLF30681QVS01

Страница 1: ...Driver Assistance Systems ADAS The device consists of a battery connected buck regulator Buck1 providing 3 3 V to external loads and to two low voltage post regulators The first post regulator Buck2 p...

Страница 2: ...ng channels can be used to control and monitor external LDOs or external DC DC switching regulators Type Package Marking TLF30681QVS01 PG VQFN 48 TLF30681 S01 OPTIREG PMIC TLF30681QVS01 Power manageme...

Страница 3: ...s Buck1 24 4 2 Post regulator step down converter Buck2 25 4 2 1 Functional description Buck2 25 4 2 2 Electrical characteristics Buck2 27 4 2 3 Typical performance characteristics Buck2 29 4 3 Post r...

Страница 4: ...7 1 Microcontroller interface supply IOVDD pin 52 7 1 1 Electrical characteristics microcontroller interface supply 54 7 2 Serial peripheral interface SPI 55 7 2 1 SPI introduction 55 7 2 2 SPI write...

Страница 5: ...egister B2VCTRLN 101 9 1 4 General registers 102 9 1 4 1 Register PROTCFG 102 9 1 4 2 Register WWDSCMD 103 9 1 5 Event status registers 104 9 1 5 1 Register GSF 104 9 1 5 2 Register SYSSF0 106 9 1 5 3...

Страница 6: ...isters 126 9 1 7 1 Register HWDECT0 127 9 1 7 2 Register DEVID 128 10 Application information 129 11 Package information 131 Revision history 132 Disclaimer 133 OPTIREG PMIC TLF30681QVS01 Power manage...

Страница 7: ...toring Enable Handling Internal Supply SPI_DataIn SPI_Clock SPI_ChipSelect SPI_DataOut Watchdog_TriggerIn C_Reset Interrupt ExtRail1_Feedback ExtRail1_Enable VM1EN VM1FB ExtRail2_Feedback ExtRail2_Ena...

Страница 8: ...FB 47 SDI 38 22 R2FB 21 AG4 20 R1FB 19 AG3 18 AG2 17 AG1 16 R1BTS 15 R1SW3 14 R1SW2 23 R2PG1 34 IOVDD 33 MPS 32 TM1 31 R3FB 30 R3PG1 29 R3SW1 28 R2VS2 27 R2VS1 26 R2SW2 35 SYNCO R1PG1 10 R1VS3 9 R1VS2...

Страница 9: ...between this pin and ground An EMC filter is recommended 9 R1VS3 High voltage regulator supply voltage pin 3 Connect this pin in parallel with R1VS1 and R1VS2 and then to the supply battery voltage v...

Страница 10: ...utput capacitor ground terminal to ground 24 R2PG2 Pre regulator power ground pin 2 Connect this pin in parallel with R2PG1 and then to the Buck2 output capacitor ground terminal to ground 25 R2SW1 Po...

Страница 11: ...gulators The feature needs to be enabled via SPI If the pin is not used then leave it floating 37 SDO Serial peripheral interface signal data output SPI signalling port connect this pin to the SPI por...

Страница 12: ...rated by the optional external voltage regulator 1 If the optional external regulator is not used then connect this pin to ground 48 VM2FB Input for optional external voltage monitoring rail 2 Connect...

Страница 13: ...13 AG2 VAG2 0 3 0 3 V P_3 1 14 AG3 VAG3 0 3 0 3 V P_3 1 15 AG4 VAG4 0 3 0 3 V P_3 1 16 AG5 VAG5 0 3 0 3 V P_3 1 17 AG6 VAG6 0 3 0 3 V P_3 1 18 SYNCI VSYNCI 0 3 6 0 V P_3 1 19 SYNCO VSYNCO 0 3 6 0 V P...

Страница 14: ...R2SW2 0 3 7 0 V P_3 1 40 R2PG1 VR2PG1 0 3 0 3 V P_3 1 41 R2PG2 VR2PG2 0 3 0 3 V P_3 1 42 R2FB VR2FB 0 3 7 0 V P_3 1 43 R3SW1 VR3SW1 0 3 7 0 V P_3 1 44 R3PG1 VR3PG1 0 3 0 3 V P_3 1 45 R3FB VR3FB 0 3 7...

Страница 15: ...3 2 Functional range Table 2 Functional range Parameter Symbol Values Unit Note or condition Number Min Typ Max Supply voltage range for normal operation VR1VSx 5 0 35 V 5 P_3 2 1 Supply voltage range...

Страница 16: ...ad RthJSP 13 1 18 0 K W JEDEC 1s0p P_4 3 2 Junction to ambient RthJA 37 K W 8 P_4 3 3 Note This thermal data was generated in accordance with JEDEC JESD51 standards For more information visit www jede...

Страница 17: ...C 9 V VR1VSx 25 V no load watchdog disabled P_3 4 1 DISABLED state Iq DIS 13 17 5 A Tj 85 C 9 V VR1VSx 25 V P_3 4 2 DISABLED state Iq DIS 11 13 5 A Tj 25 C VR1VSx 13 5 V P_3 4 3 FAULT state Iq FLT 1...

Страница 18: ...t current DISABLED state quiescent current Iq versus supply voltage VR1VSx LOCKED state quiescent current Iq versus supply voltage VR1VSx OPTIREG PMIC TLF30681QVS01 Power management IC General product...

Страница 19: ...he output voltage Internal compensation allows for fast loop performance across a wide range of output capacitance No external tuning of the loop is required The device supports ceramic capacitors as...

Страница 20: ...ile the external voltage compensation loop regulates the output voltage The compensation loop can operate with a variety of power stages For information on the selection of the external components see...

Страница 21: ...and it generates an interrupt If the junction temperature continues to rise and exceeds the overtemperature shutdown threshold then the converter shuts down and generates a thermal shut down TSD event...

Страница 22: ...ow side switch on resistance RDSOn R1LS 95 m 5 0 V VR1VSx 35 V P_4 1 2 42 Low side switch on resistance derated RDSOn R1LS D R m 3 7 V VR1VSx 5 0 V P_4 1 2 43 Overcurrent protection threshold IR1OCP 4...

Страница 23: ...ctive inductance LR1 2 64 3 3 4 0 H 10 P_4 1 2 33 Effective output capacitance CR1 75 100 240 F 10 11 P_4 1 2 35 ESR of output capacitance RR1C 0 5 30 m P_4 1 2 36 10 For additional information on the...

Страница 24: ...1 Buck1 output voltage VR1FB versus load current IR1IOUT Buck1 output voltage VR1FB versus supply voltage VR1VSx drop out region OPTIREG PMIC TLF30681QVS01 Power management IC Power converters and pow...

Страница 25: ...nt threshold at the end of the switching period then the device does not turn on the high side switch in the subsequent switching period This allows the device to work as a constant current source If...

Страница 26: ...tion in order to allow the microcontroller to verify correct detection for the specific application and to differentiate the result from a possible fault present on the PCB To indicate to the device t...

Страница 27: ...rent timeout tR2 OCP 95 100 115 s P_4 2 2 20 Minimum on time tR2SWx 64 79 87 ns Minimum on time for internal high side control signal The actual on time on the R2SWx pins depends on the application de...

Страница 28: ...eter Symbol Values Unit Note or condition Number Min Typ Max ESR of output capacitance RR2C 0 5 30 m P_4 2 2 31 14 Effective capacitance including derating over the temperature range bias voltage and...

Страница 29: ...cal performance characteristics Buck2 Buck2 output voltage VR2FB versus load current IR2IOUT OPTIREG PMIC TLF30681QVS01 Power management IC Power converters and power management Datasheet 29 Rev 1 0 2...

Страница 30: ...a short circuit directly However indirect protection via an undervoltage protection and current limitation of the front end converter Buck1 is available Automatic use detection The integrated automati...

Страница 31: ...t detection threshold IR3 OCP 740 820 900 mA P_4 3 2 5 Overcurrent timeout tR3 OCP 170 220 260 s P_4 3 2 6 External power stage components Effective inductance LR3 3 8 6 8 9 8 H 15 P_4 3 2 8 Effective...

Страница 32: ...al performance characteristics Boost1 Boost1 output voltage VR3FB versus load current IR3IOUT OPTIREG PMIC TLF30681QVS01 Power management IC Power converters and power management Datasheet 32 Rev 1 0...

Страница 33: ...r the specific application and differentiate the result from a possible fault condition on the PCB To indicate to the device that the application does not require a voltage monitor connect the respect...

Страница 34: ...required at the IOVDD pin in order to operate the digital outputs of the device see Microcontroller interface supply IOVDD pin 5 1 1 Electrical characteristics supply voltages Table 9 Electrical chara...

Страница 35: ...on where a low to high transition or a high to low transition of the enable signal is considered an enable event Upon detection of an enable event the device generates an interrupt SYSSF1 QM ENA Depen...

Страница 36: ...to the default value The device can therefore only recognize an ENA event in DISABLED state if the ENA pin has a low to high transition 5 2 2 Electrical characteristics enable Table 10 Electrical char...

Страница 37: ...ypical performance characteristics enable ENA pin input voltage thresholds VENA versus junction temperature Tj OPTIREG PMIC TLF30681QVS01 Power management IC Central functions Datasheet 37 Rev 1 0 202...

Страница 38: ...is reached For example during ramp up of Buck1 the device waits until its output voltage exceeds the undervoltage threshold and until the rise time tBuck1 has elapsed before it initiates the ramping...

Страница 39: ...eset signal with a configurable delay once the microcontroller supply voltage is within the operating band for a selectable time period DEVCFG0 RESDEL For generation of the microcontroller reset signa...

Страница 40: ...otherwise specified Parameter Symbol Values Unit Note or condition Number Min Typ Max Internal device startup time tSTARTUP 300 s P_5 3 1 Output voltage rise time Buck1 tBUCK1 640 s VBUCK1 3 3 V P_5...

Страница 41: ...r Spread spectrum Modulator Clock Synchroni zation fMain SYNCI Main Clock Selector fMain Buck1 Selector fR1 Buck2 Selector Boost1 Selector 180 fR2 fR3 SYNCO Selector fSYNCO 180 180 Figure 6 Clock gene...

Страница 42: ...chronization output is disabled by default The synchronization output can be enabled via SPI CLKCFG0 allows to adjust the phase shift between the individual converters The phase shift is defined betwe...

Страница 43: ...ase delay between SYNCIN and switching edges 30 ns P_5 4 11 Output voltage settling time tSync 50 s P_5 4 12 Synchronization output signal SYNCO18 Output level high VSYNCO high 0 7 VIOVDD IIOVDD 7 mA...

Страница 44: ...pical performance characteristics frequency generation Switching frequency fMAIN versus junction temperature Tj OPTIREG PMIC TLF30681QVS01 Power management IC Central functions Datasheet 44 Rev 1 0 20...

Страница 45: ...ground detection time then the device generates a short to ground event A short to ground event on IOVDD triggers a hard reset in the device and the SYSSF0 QM IOVDDUV ROT VIOVDD 1 V VIOVDD OV VIOVDD U...

Страница 46: ...current flowing into pin unless otherwise specified Parameter Symbol Values Unit Note or condition Number Min Typ Max IOVDD undervoltage hysteresis VIOVDD UV Hys 0 4 2 25 P_5 6 4 Deglitching time tIOV...

Страница 47: ...xecutes appropriate according actions see State transitions and trigger signals When the device enables a power rail it activates the respective voltage monitoring automatically For information on the...

Страница 48: ...g on the internal root cause the device sets SYSSF0 QM BGFLT1 or SYSSF0 QM BGFLT2 6 1 5 Electrical characteristics voltage monitoring Table 14 Electrical characteristics voltage monitoring Tj 40 C to...

Страница 49: ...2 25 P_6 1 5 22 Deep undervoltage threshold VBuck2 DUV 38 40 42 P_6 1 5 23 Deep undervoltage hysteresis VBuck2 DUV Hy s 0 8 3 15 P_6 1 5 24 Deglitching time tBuck2 deg 8 20 s P_6 1 5 25 Short to groun...

Страница 50: ...ferenced to VM2 nominal reference voltage VVM2FB nom P_6 1 5 52 Undervoltage hysteresis VVM2 UV Hys 0 4 2 25 P_6 1 5 54 Deglitching time tVM2 deg 8 20 s P_6 1 5 55 Short to ground detection time tVM2...

Страница 51: ...ges with respect to ground positive current flowing into pin unless otherwise specified Parameter Symbol Values Unit Note or condition Number Min Typ Max Overtemperature warning threshold Tj MONOT WRN...

Страница 52: ...if required Series Protection resistors C SPI SPI Reset Control Window Wacthdog Interrupt Generator Reset Generator ROT WDI SDO SDI SCL SCS INT IOVDD TRIGGER OUTPUT INTERRUPT INPUT C TLF30681 Figure 8...

Страница 53: ...WDI SYNCI SYNCO OPTIREG PMIC TLF30681QVS01 Power management IC Microcontroller interface and supervisory functions Datasheet 53 Rev 1 0 2020 04 08...

Страница 54: ...otherwise specified Parameter Symbol Values Unit Note or condition Number Min Typ Max Microcontroller interface Supply voltage VIOVDD 3 0 5 5 V P_7 1 1 1 Supply current IIOVDD 2 5 mA VIOVDD 3 3 V SDO...

Страница 55: ...SPI response for read operations consists of the following parts command bit CMD 6 status bits S0 S5 8 data bits D0 D7 parity bit P For a write operation the data read on SDI is looped back via SDO A...

Страница 56: ...ores the data sets the SPI status SPISF LEN and generates an interrupt If a read operation with an incorrect number of SPI clock cycles occurs then the device sets the SPI status SPISF LEN and generat...

Страница 57: ...bytes 1 ABH 2 EFH 3 56H 4 12H written into the PROTCFG register The respective SPI write operations must be atomic so that they are not interrupted by an SPI write operation to a different register Re...

Страница 58: ...es the transition request without generating an interrupt The device executes the change in configuration of output rails 7 2 4 Configuration of Buck2 output voltage via SPI The output voltage of Buck...

Страница 59: ...SPI_clkr E t SPI_clkf F t SPI_su G t SPI_hi H t SPI_a I t SPI_v J t SPI_fl K t SPI_dis L t SPI_lead M t SPI_lag N t SPI_td O t SPI_csf P t SPI_csr Q t SPI_dr J Figure 10 SPI timing OPTIREG PMIC TLF306...

Страница 60: ..._7 2 5 8 Pull up current ISCL 180 55 A VIOVDD 5 0 V P_7 2 5 9 Input capacitance CSCL 4 15 pF 21 P_7 2 5 10 SPI data input SDI Valid input level high VSDI high 0 7 VIOVDD VSDI increasing P_7 2 5 11 Val...

Страница 61: ...2 5 30 CLK_SPI lag time tSPI_lag 50 ns P_7 2 5 31 SPI chip select SCS rise time tSPI_csr 200 ns tSPI_lead 100 ns P_7 2 5 32 SPI chip select SCS rise time tSPI_csr 0 2 tSPI_lead ns tSPI_lead 100 ns P_...

Страница 62: ...pecified Parameter Symbol Values Unit Note or condition Number Min Typ Max SPI data output SDO disable time tSPI_dis 100 ns CSDO load 50 pF P_7 2 5 43 Sequential transfer delay tSPI_td 350 ns P_7 2 5...

Страница 63: ...reset the device forces the ROT pin low enters FAULT state and turns all supply voltages off 7 3 1 Electrical characteristics ROT Table 19 Electrical characteristics ROT Tj 40 C to 150 C VR1VSx 3 7 V...

Страница 64: ...lling the interrupt line low for at least tINT interrupt min pulse width after an internal interrupt condition occurs The interrupt line will be driven high if all of the GSF register flag s has have...

Страница 65: ...t POR HIGH LOW FSM State t Internal interrupt request SPI service done t POR ACTIVE HIGH LOW t Interrupt line t SPI service done SPI service done HIGH LOW t HIGH LOW t INT not serviced flag previously...

Страница 66: ...all voltages with respect to ground positive current flowing into pin unless otherwise specified Parameter Symbol Values Unit Note or condition Number Min Typ Max Interrupt signal INT Output level hi...

Страница 67: ...ified Parameter Symbol Values Unit Note or condition Number Min Typ Max Interrupt low timeout tINTTO 270 300 330 s ROT signal for the microcontroller must be released ROT high P_7 4 1 6 Minimum interr...

Страница 68: ...uration is the triggering via SPI The duration of the open window and closed window cycles can be modified according to the application needs combination of cycle time and number of cycles for open wi...

Страница 69: ...ndow watchdog error is greater than 0 then valid WWD triggering decrements the window watchdog error counter by 1 If no valid triggering occurs during the open window then the window watchdog recogniz...

Страница 70: ...ice requires at least two high samples followed by two low samples for a valid trigger signal Whether the triggering is valid the window watchdog decides at the time of the second consecutive low samp...

Страница 71: ...configuration The maximum duration of the long open window is fixed On valid WWD triggering the window watchdog terminates the long open window 3 The window watchdog starts the closed window 4 The clo...

Страница 72: ...detect valid triggering during ACTIVE state it generates a soft reset The device sets ROT to low while the output voltages of the post regulators remain on 3 After the soft reset the pin ROT turns hig...

Страница 73: ...n valid triggering the window watchdog terminates the open window The duration of the open window depends on when the triggering occurs Due to the valid WWD triggering the window watchdog starts a clo...

Страница 74: ...indow so the microprocessor gets the opportunity to synchronize to the window watchdog period 3 During this open window the window watchdog waits for valid triggering On valid triggering the window wa...

Страница 75: ...o the microprocessor gets the opportunity to synchronize to the window watchdog period 3 During this open window the window watchdog waits for valid triggering On valid triggering the window watchdog...

Страница 76: ...ng during the initialization period The programming mode can be enabled by pulling the MPS pin high In programming mode the reset generation to the microcontroller is modified so that fault events of...

Страница 77: ...ote or condition Number Min Typ Max MPS pin Valid input level high VMPS high 2 4 V VMPS increasing P_7 8 0 1 Valid input level low VMPS low 0 8 V VMPS decreasing P_7 8 0 2 Input hysteresis VMPS hys 35...

Страница 78: ...e event Timer expired Buck1 OFF Buck2 OFF VM1 VM2 OFF LOCKED ROT LOW Fault has occured three times and DEVCFG0 ENA_CONFIG 0 Enable event SPI Goto to LOCKED and DEVCFG0 ENA_CONFIG 0 Buck1 Buck2 VM1 IOV...

Страница 79: ...e and expects configuration from the microcontroller In DISABLED state the device resets the content of all registers The device needs to be configured again during the ACTIVE state FAULT On detection...

Страница 80: ...nt state SEL The function is operating as configured via SPI during the mode transition or within the current operation mode off The function is automatically deactivated when entering the operation m...

Страница 81: ...d and ENA_CONFIG 0 ACTIVE FAULT Hard reset fault detected DISABLED ACTIVE Enable event Generate MCU reset FAULT ACTIVE FAULT timer expires Generate MCU reset FAULT LOCKED 25 Hard reset fault occurs th...

Страница 82: ...nter increase X WWD counter overflow X INIT timer expired first time X INIT timer expired second time X Internal protection band gap warning X Internal protection band gap fault X IOVDD OV X IOVDD UV...

Страница 83: ...irst Initialisation Error Start up with second Initialisation Error Second INIT error detected Hard Reset event is generated FSM moved to Fault state t POR HIGH LOW Device remains in Active state afte...

Страница 84: ...ULT ACTIVE LOCKED t t t Device enters LOCKED state after third initialisation error if ENA LOW First INIT error detected Soft Reset event is generated FSM moved to active state after Fault time is exp...

Страница 85: ...3H R0 Page 88 CLKCFG0 Clock configuration 0 01H 00H R2 Page 89 CLKCFG1 Clock configuration 1 02H 04H R2 Page 90 PROTCFG Configuration protection 03H 00H R2 Page 102 PWDCFG0 Protected watchdog configur...

Страница 86: ...H R1 Page 118 VMONSTAT0 Voltage monitoring 27H 00H R1 Page 119 DEVSTAT Device state information 28H 00H R1 Page 121 PROTSTAT Protection status information 29H 01H R2 Page 122 WWDSTAT Window watchdog s...

Страница 87: ...9 1 SPI register definition 9 1 1 Device configuration registers device startup default configuration OPTIREG PMIC TLF30681QVS01 Power management IC SPI registers Datasheet 87 Rev 1 0 2020 04 08...

Страница 88: ...rnal voltage monitoring 1 enable at start up 0H disabled 1H enabled Reset 1H BOOST1ENAS 5 r Boost1 enable at start up 0H disabled 1H enabled Reset 1H BUCK2ENAS 4 r Buck2 enable at start up 0H disabled...

Страница 89: ...phase alignment 0H 0 phase shift 1H 180 phase shift Reset 0H PHSO 4 rw External clock synchronization phase alignment 0H 0 phase shift 1H 180 phase shift Reset 0H nu 3 r Not used SSEN 2 rw Spread spec...

Страница 90: ...4 3 2 1 0 nu FREQSEL r rw Field Bits Type Description nu 7 3 r Not used FREQSEL 2 0 rw Main switching frequency 0H 1 8 MHz 1H 1 9 MHz 2H 2 0 MHz 3H 2 1 MHz 4H 2 2 MHz 5H 2 3 MHz 6H 2 4 MHz 7H 2 5 MHz...

Страница 91: ...or threshold 0H 0 1H 1 FH 15 Reset 9H WWDEN 3 rwp Window watchdog enable 0 B disabled 1 B enabled 1 B nu 2 r Not used WWDTSEL 1 rwp Window watchdog trigger selection 0 B external WDI input used as WWD...

Страница 92: ...6 5 4 3 2 1 0 nu CW r rwp Field Bits Type Description nu 7 r Not used CW 6 0 rwp Window watchdog closed window size 00H 0 watchdog cycles 01H 50 watchdog cycles 02H 100 watchdog cycles 7FH 6350 watchd...

Страница 93: ...6 5 4 3 2 1 0 nu OW r rwp Field Bits Type Description nu 7 r Not used OW 6 0 rwp Window watchdog open window size 00H 50 watchdog cycles 01H 50 watchdog cycles 02H 100 watchdog cycles 7FH 6350 watchdo...

Страница 94: ...dow watchdog error threshold ACTIVE 0H 0 1H 1 FH 15 Reset 9H WWDEN 3 r Window watchdog enable STATUS 0 B disabled 1 B enabled 1 B nu 2 r Not used WWDTSEL 1 r Window watchdog trigger selection ACTIVE 0...

Страница 95: ...5 4 3 2 1 0 nu CW r r Field Bits Type Description nu 7 r Not used CW 6 0 r Window watchdog closed window size ACTIVE 00H 0 watchdog cycles 01H 50 watchdog cycles 02H 100 watchdog cycles 7FH 6350 watch...

Страница 96: ...5 4 3 2 1 0 nu OW r r Field Bits Type Description nu 7 r Not used OW 6 0 r Window watchdog open window size ACTIVE 00H 50 watchdog cycles 01H 50 watchdog cycles 02H 100 watchdog cycles 7FH 6350 watch...

Страница 97: ...procedure This procedure is based on the access to two individual registers writing inverted information For detailed information please refer to SPI write initiated state transition request and regul...

Страница 98: ...EN 6 rw External voltage monitoring 1 enable request 0H disable 1H enable Reset 0H BOOST1EN 5 rw Boost1 enable request 0H disable 1H enable Reset 0H BUCK2EN 4 rw Buck2 enable request 0H disable 1H ena...

Страница 99: ...0H VM1EN 6 rw External voltage monitoring 1 enable request 0H enable 1H disable Reset 0H BOOST1EN 5 rw Boost1 enable request 0H enable 1H disable Reset 0H BUCK2EN 4 rw Buck2 enable request 0H enable 1...

Страница 100: ...nu B2VOUTF r rwhu Field Bits Type Description nu 7 4 r Not used B2VOUTF 3 0 rwhu Buck2 output voltage setting fine resolution 0H 1 30 V 1H 1 20 V 2H 1 25 V 3H 1 15 V 4H 1 10 V 5H 1 00 V 6H 1 05 V 7H...

Страница 101: ...2 1 0 nu B2VOUTF r rwhu Field Bits Type Description nu 7 4 r Not used B2VOUTF 3 0 rwhu Buck2 output voltage setting fine resolution FH 1 30 V EH 1 20 V DH 1 25 V CH 1 15 V BH 1 10 V AH 1 00 V 9H 1 05...

Страница 102: ...TCFG RMAP X Address 03H Configuration protection PAGE 2 Reset Value 00H 7 6 5 4 3 2 1 0 KEY rw Field Bits Type Description KEY 7 0 rw Protection key Reset 00H OPTIREG PMIC TLF30681QVS01 Power manageme...

Страница 103: ...7 6 5 4 3 2 1 0 TRIG_STAT US nu TRIG r r rw Field Bits Type Description TRIG_STATUS 7 r Window watchdog last trigger received via SPI Reset 00H nu 6 1 r Not used TRIG 0 rw Window watchdog trigger comm...

Страница 104: ...egister GSF GSF RMAP X Address 1AH Global status flags PAGE 0 Reset Value 00H 7 6 5 4 3 2 1 0 INTMISS nu R1VSxUV OT MON SPI MCU SYS r r rw1c rw1c rw1c rw1c rw1c rw1c Field Bits Type Description INTMIS...

Страница 105: ...vent write 0 no action 1H event occurred write 1 to clear the flag Reset 0H SYS 0 rw1c System event flag SYSSF0 QM SYSSF1 QM 0H no event write 0 no action 1H event occurred write 1 to clear the flag R...

Страница 106: ...0H no event write 0 no action 1H event occurred write 1 to clear the flag Reset 0H IOVDDOV 5 rw1c IOVDD overvoltage event 0H no event write 0 no action 1H event occurred write 1 to clear the flag Rese...

Страница 107: ...n a power on reset event write 0 no action 1H device wake up on ENA event write 1 to clear the flag Reset 0H nu 4 r Not used SYNC 3 rw1c External clock synchronization fault event 0H no event write 0...

Страница 108: ...OPTIREG PMIC TLF30681QVS01 Power management IC SPI registers Datasheet 108 Rev 1 0 2020 04 08...

Страница 109: ...ear the flag Reset 0H SOFTRES 6 rw1c Soft reset event 0H no event write 0 no action 1H event occurred write 1 to clear the flag Reset 0H nu 5 4 rw1c Not used WWDF 3 rw1c Window watchdog fault event 0H...

Страница 110: ...3 2 1 0 nu WWDMISS nu r rw1c r Field Bits Type Description nu 7 4 r Not used WWDMISS 3 rw1c Window watchdog missed trigger event 0H no event write 0 no action 1H event occurred write 1 to clear the fl...

Страница 111: ...0H no event write 0 no action 1H event occurred write 1 to clear the flag Reset 0H DUR 3 rw1c SPI duration error event Chip select signal CS low for more than 2 ms 0H no event write 0 no action 1H eve...

Страница 112: ...nitoring 1 short to ground event 0H no event write 0 no action 1H event occurred write 1 to clear the flag Reset 0H nu 5 r Not used BOOST1STG 4 rw1c Boost1 short to ground event 0H no event write 0 no...

Страница 113: ...monitoring 1 overvoltage event 0H no event write 0 no action 1H event occurred write 1 to clear the flag Reset 0H nu 5 r Not used BOOST1OV 4 rw1c Boost1 overvoltage event 0H no event write 0 no action...

Страница 114: ...onitoring 1 undervoltage event 0H no event write 0 no action 1H event occurred write 1 to clear the flag Reset 0H nu 5 r Not used BOOST1UV 4 rw1c Boost1 undervoltage event 0H no event write 0 no actio...

Страница 115: ...ent write 0 no action 1H event occurred write 1 to clear the flag Reset 0H nu 6 2 r Not used BUCK2OT 1 rw1c Buck2 overtemperature fault event 0H no event write 0 no action 1H event occurred write 1 to...

Страница 116: ...event write 0 no action 1H event detected write 1 to clear flag Reset 0H nu 6 2 r Not used BUCK2OTW 1 rw1c Buck2 overtemperature warning event 0H no event write 0 no action 1H event occurred write 1 t...

Страница 117: ...ent 0H no event write 0 no action 1H event occurred write 1 to clear the flag Reset 0H nu 3 2 r Not used BUCK2OCW 1 rw1c Buck2 overcurrent warning event 0H no event write 0 no action 1H event occurred...

Страница 118: ...ature status 0 warnings PAGE 1 Reset Value 00H 7 6 5 4 3 2 1 0 MONOTW nu BUCK2OTW BUCK1OTW r r r r Field Bits Type Description MONOTW 7 r Monitoring overtemperature warning STATUS 0H no overtemperatur...

Страница 119: ...tage not present 1H battery voltage undervoltage present Reset 0H BOOST1OK 4 r Boost1 STATUS 0H output rail disabled or not in total operation band 1H output rail enabled and in total operation band R...

Страница 120: ...OPTIREG PMIC TLF30681QVS01 Power management IC SPI registers Datasheet 120 Rev 1 0 2020 04 08...

Страница 121: ...ernal voltage monitoring 1 enable STATUS 0H voltage is disabled 1H voltage is enabled Reset 0H BOOST1EN 5 r Boost 1 enable STATUS 0H voltage is disabled 1H voltage is enabled Reset 0H BUCK2EN 4 r Buck...

Страница 122: ...KEY3OK 6 r Third protection key valid STATUS 0H key not valid 1H key valid Reset 0H KEY2OK 5 r Second protection key valid STATUS 0H key not valid 1H key valid Reset 0H KEY1OK 4 r First protection ke...

Страница 123: ...ormation PAGE 2 Reset Value 00H 7 6 5 4 3 2 1 0 nu WWDECNT r r Field Bits Type Description nu 7 4 r Not used WWDECNT 3 0 r Window watchdog error counter level 0H 0 1H 1 FH 15 Reset 0H OPTIREG PMIC TLF...

Страница 124: ...03H 7 6 5 4 3 2 1 0 nu MPSSTAT r r Field Bits Type Description nu 7 4 r Not used MPSSTAT 3 0 r MPS STATUS 3H device in operating mode 6H device in programming mode 9H device in test mode production t...

Страница 125: ...ut voltage setting coarse resolution STATUS 0H Range 0 9 1 3 V Fine resolution is evaluated 1H 1 5 V 2H 1 8 V 3H 2 45 V 4H 3 3 V Reset 0H BUCK2VOUTF 3 0 r Buck2 output voltage setting fine resolution...

Страница 126: ...9 1 7 Device information registers OPTIREG PMIC TLF30681QVS01 Power management IC SPI registers Datasheet 126 Rev 1 0 2020 04 08...

Страница 127: ...utomatic use detection 0H VM1 is not used in this application 1H VM1 is used in this application Reset 1H nu 5 r Not used BOOST1AVA 4 r Boost1 automatic use detection 0H Boost1 is not used in this app...

Страница 128: ...evice identification PAGE 1 Reset Value 30H 7 6 5 4 3 2 1 0 DEVTYPE r Field Bits Type Description DEVTYPE 7 0 r Device family 30H TLF30681 device Reset 30H OPTIREG PMIC TLF30681QVS01 Power management...

Страница 129: ...SYNCO SYNCI SYNC_In SYNC_Out MPS R3SW SMPR Boost R3PG VBoost1 Feedback R3FB AG3 IOVDD AG4 AG5 R1BTSV Interface_supply NC TM2 AG1 Buck1 Driver Supply AG6 C Buck1_1 C Buck1_2 C Buck1_3 LBuck1 CBuck1_BST...

Страница 130: ...CBuck2_2 33 F Buck2 output capacitors 1 to 2 Use a ceramic capacitor in X7R material with a voltage rating of 6 3 V or higher LBoost1 6 8 H Boost1 inductor Use an inductor with a saturation current ab...

Страница 131: ...CE WITH ISO 128 PROJECTION METHOD 1 48x 0 3 5 0 1 3 0 0 5 0 15 0 05 INDEX MARKING 0 4 x 45 Figure 25 PG VQFN 48 Green Product RoHS compliant To meet the world wide customer requirements for environmen...

Страница 132: ...Revision history Revision Date Changes 1 0 2020 04 08 Datasheet created OPTIREG PMIC TLF30681QVS01 Power management IC Revision history Datasheet 132 Rev 1 0 2020 04 08...

Страница 133: ...nt is subject to customer s compliance with its obligations stated in this document and any applicable legal requirements norms and standards concerning customer s products and any use of the product...

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