Linear LTM2987 Скачать руководство пользователя | Manualshive

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dc2023afa

DEMO MANUAL DC2023A

Dc2023 Details—top

Table 1. DC2023A: Default Switch Configuration (Default Position Shown in Grey in the Figure Above)

REFERENCE DESIGNATOR SIGNAL NAME

USAGE

DEFAULT

JP3

SCLK, A0, A1, 2

DIP Switch Used to Set the Address Offset of LTM2987

OPEN

S1

CONTROL

Switch Used to Enable/Disable the CONTROL Input Pins of LTM2987 RUN

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Содержание LTM2987

Страница 1: ...comes pre programmed with the EEPROM values appropriate for the sixteen power supplies used on the DC2023A Just plug and play Multiple DC2023A board sets can be cascaded together to form a high channe...

Страница 2: ...ughout the document Channel The collection of functions that monitor su pervise and trim a given power supply rail EEPROM Non volatile memory NVM storage used to retain data after power is removed Mar...

Страница 3: ...y provides unprecedented diagnostic and debug features It becomes a valuable diagnostic tool during board bring up to program or tweak the power management scheme in a system or to diagnose power issu...

Страница 4: ...all power good LEDs and 5V LED illuminated green The USB to I2C SMBus PMBus Controller supplies 100mA of current which should be sufficient for a single demo board 5 Ifmultipleboardsarebeingpowered c...

Страница 5: ...enable OFF to disable all channels For multiple board arrays the CONTROL switch is wired to a signal that is common across all boards All CONTROL switches must be set to the RUN position to enable all...

Страница 6: ...dule has a multiplexed ADC that is used to provide voltage current and temperature readback values The telemetry plot in the GUI is similar to amulti channeloscilloscopewhichiscapableofdisplaying any...

Страница 7: ...ult To clear a fault the user may click the CF icon in the GUI orsimplypushtheRESETpushbuttononthedemoboard In both cases the red on the CF icon and alert LED on the board will be cleared You will not...

Страница 8: ...entially based on each of the device s TOFF_DELAY values Figure 6 shows an oscilloscope screen capture of Common Demo Board Operations Figure 6 Sequencing Output Channels with DC2023A Using TON_DELAY...

Страница 9: ...he LTpowerPlay GUI Why Am I Off Tool Use the Why am I Off tool in the LTpowerPlay GUI to di agnose the reason a power supply channel is turned off The tool can be located in the top right corner of th...

Страница 10: ...iate LTM2987 chip We will proceed to work with the fault log Working with the Fault Log Onceafaulthasoccurred theFaultLog FL iconwillshow a red sign on it indicating that the GUI has detected a fault...

Страница 11: ...a power system manager to other power system managers via FAULT pins Use the Fault Sharing Setup Tool to configure the fault sharing in the GUI Select the LTM2987 labeled U0 in the system tree Go to U...

Страница 12: ...the switches to open close Click OK to close the dialog box Click the PC RAM icon to write the changes to the DC2023A We can now create a fault on U0 0 CH0 by shorting the output to ground You may us...

Страница 13: ...s show up in the GUI click the hourglass icon to enumerate the I2C bus and find the addresses of the parts Go to step 2 to ensurethateachboardhasauniqueDIPswitchsetting 5 Since the individual CONTROL...

Страница 14: ...e slave address of an I O expander which provides for the addition of multiple boards to a setup The I O expander has a base address of 0x20 The DIP switch settings set the offset The three switches t...

Страница 15: ...t Switch Configuration Default Position Shown in Grey in the Figure Above REFERENCE DESIGNATOR SIGNAL NAME USAGE DEFAULT JP3 SCLK A0 A1 2 DIP Switch Used to Set the Address Offset of LTM2987 OPEN S1 C...

Страница 16: ...16 dc2023afa DEMO MANUAL DC2023A DC2023 Details Bottom...

Страница 17: ...6V 10 X5R 0603 TDK C1608X5R1C475K 13 1 C65 CAP TANT 47 F 16V 20 7343 AVX TPSD476M016R0150 14 1 C68 CAP CER 4 7pF 50V NP0 0603 MURATA GRM1885C1H4R7CZ01D 15 1 D1 DIODE SCHOTTKY 30V CC SOT 323 3 STMICROE...

Страница 18: ...0603 SMD YAGEO RC0603FR 0734K8L 45 1 R54 RES 33 2K OHM 1 10W 1 0603 SMD YAGEO RC0603FR 0733K2L 46 1 R55 RES 32 4k 1 10W 1 0603 SMD YAGEO RC0603FR 0732K4L 47 16 R66 R67 R68 R69 R70 R71 R72 R73 R127 R12...

Страница 19: ...Board Only 73 1 J1 CONN PWR JACK 2 1X5 5MM HIGH CUR CUI INC PJ 002AH 74 1 J2 CONN HEADER 12POS 2MM STR DL PCB FCI 98414 G06 12ULF 75 1 JP1 CONN RECEPT 2MM DUAL R A 14POS SULLINS CONNECTOR SOLUTIONS NP...

Страница 20: ...70 10u 10V GND VDD GREEN DMG1012UW 7 22u 10V 220p GND GND GND 464k OPT 0 GND GND VDD 3 01k 100k 158k GND 1 2 3 4 6 5 U1 L1 R126 R134 C9 P1 3 2 1 Q17 C85 C1 R117 C77 R118 R17 R1 R9 1 2 3 4 6 5 U2 L2 R1...

Страница 21: ...0 10u 10V GND VDD GREEN DMG1012UW 7 22u 10V 220p GND GND GND 340k OPT 0 GND GND VDD 3 01k 100k 80 6k GND 1 2 3 4 6 5 U5 L5 R122 R130 C13 P5 3 2 1 Q13 C81 C5 R109 C73 R110 R21 R5 R13 1 2 3 4 6 5 U6 L6...

Страница 22: ...10u 10V GND VDD GREEN DMG1012UW 7 22u 10V 220p GND GND GND 226k OPT 0 GND GND VDD 3 01k 100k 42 2k GND 1 2 3 4 6 5 U13 L10 R81 R73 C27 P9 3 2 1 Q8 C54 C38 R97 C62 R96 R39 R58 R48 1 2 3 4 6 5 U14 L11...

Страница 23: ...0u 10V GND VDD GREEN DMG1012UW 7 22u 10V 220p GND GND GND 182k OPT 0 GND GND VDD 3 01k 100k 32 4k GND 1 2 3 4 6 5 U17 L14 R77 R69 C31 P13 3 2 1 Q4 C50 C42 R89 C58 R88 R43 R62 R52 1 2 3 4 6 5 U18 L15 R...

Страница 24: ..._CH11 RUN_CH12 RUN_CH13 RUN_CH14 RUN_CH15 RUN_CH9 DACP_CH15 SHARE_CLK SHARE_CLK SDA SDA SCL SCL CTRL CTRL FAULT VOUT_CH10 1 PRODUCTION MIKE P 01 29 14 1 ALL RESISTORS ARE 1 0603 2 ALL CAPACITORS ARE 1...

Страница 25: ...6 17 18 19 20 PAD U21 C37 R37 R56 C46 1 2 3 4 5 6 7 8 U12 C26 R38 C36 TP11 TP12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 JP2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 JP1 R135 TP1 R100 R99 TP2 TP22 TP21 TP19 TP14 TP13...

Страница 26: ...NCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR...

Страница 27: ...IC23158YML EV MIC23451 AAAYFL EV MIC5281YMME EV 124352 HMC860LP3E ADM00513 ADM8611 EVALZ ADM8612 EVALZ ADM8613 EVALZ ADP1046ADC1 EVALZ ADP1055 EVALZ ADP122 3 3 EVALZ ADP130 0 8 EVALZ ADP130 1 2 EVALZ...

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