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MIC23656 Internal Registers

 2018 Microchip Technology Inc.

DS50002815A-page 34

REGISTER C-3:

OUTPUT VOLTAGE CONTROL REGISTER (ADDRESS 0X02)

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

VO

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

RC = Read-then-clear bit

bit 7-0

VO<7:0>: 

Output Voltage Control, options YFT, --HAYFT, -FAYFT

0x00-0x76 = 0.6V 0x80 = 0.645

0xA0 = 0.805V

0xC0 = 0.965

0xE0 = 1.125V

0x81 = 0.65V

0xA1 = 0.81V

0xC1 = 0.97V

0xE1 = 1.13V

0x82 = 0.655V

0xA2 = 0.815V

0xC2 = 0.975V

0xE2 = 1.135V

0x83 = 0.66V

0xA3 = 0.82V

0xC3 = 0.98V

0xE3 = 1.14V

0x84 = 0.665V

0xA4 = 0.825V

0xC4 = 0.985V

0xE4 = 1.145V

0x85 = 0.67V

0xA5 = 0.83V

0xC5 = 0.99V

0xE5 = 1.15V

0x86 = 0.675V

0xA6 = 0.835V

0xC6 = 0.995V

0xE6 = 1.155V

0x87 = 0.68V

0xA7 = 0.84V

0xC7 = 1V

0xE7 = 1.16V

0x88 = 0.685V

0xA8 = 0.845V

0xC8 = 1.005V

0xE8 = 1.165V

0x89 = 0.69V

0xA9 = 0.85V

0xC9 = 1.01V

0xE9 = 1.17V

0x8A = 0.695V

0xAA = 0.855V

0xCA = 1.015V

0xEA = 1.175V

0x8B = 0.7V

0xAB = 0.86V

0xCB = 1.02V

0xEB = 1.18V

0x8C = 0.705V

0xAC = 0.865V

0xCC = 1.025V

0xEC = 1.185V

0x8D = 0.71V

0xAD = 0.87V

0xCD = 1.03V

0xED = 1.19V

0x8E = 0.715V

0xAE = 0.875V

0xCE = 1.035V

0xEE = 1.195V

0x8F = 0.72V

0xAF = 0.88V

0xCF = 1.04V

0xEF = 1.2V

0x90 = 0.725V

0xB0 = 0.885V

0xD0 = 1.045V

0xF0 = 1.205V

0x91 = 0.73V

0xB1 = 0.89V

0xD1 = 1.05V

0xF1 = 1.21V

0x92 = 0.735V

0xB2 = 0.895V

0xD2 = 1.055V

0xF2 = 1.215V

0x93 = 0.74V

0xB3 = 0.9V

0xD3 = 1.06V

0xF3 = 1.22V

0x94 = 0.745V

0xB4 = 0.905V

0xD4 = 1.065V

0xF4 = 1.225V

0x95 = 0.75V

0xB5 = 0.91V

0xD5 = 1.07V

0xF5 = 1.23V

0x96 = 0.755V

0xB6 = 0.915V

0xD6 = 1.075V

0xF6 = 1.235V

0x77 = 0.6V

0x97 = 0.76V

0xB7 = 0.92V

0xD7 = 1.08V

0xF7 = 1.24V

0x78 = 0.605V

0x98 = 0.765V

0xB8 = 0.925V

0xD8 = 1.085V

0xF8 = 1.245V

0x79 = 0.61V

0x99 = 0.77V

0xB9 = 0.93V

0xD9 = 1.09V

0xF9 = 1.25V

0x7A = 0.615V

0x9A = 0.775V

0xBA = 0.935V

0xDA = 1.095V

0xFA = 1.255V

0x7B = 0.62V

0x9B = 0.78V

0xBB = 0.94V

0xDB = 1.1V

0xFB = 1.26V

0x7C = 0.625V

0x9C = 0.785V

0xBC = 0.945V

0xDC = 1.105V

0xFC = 1.265V

0x7D = 0.63V

0x9D = 0.79V

0xBD = 0.95V

0xDD = 1.11V

0xFD = 1.27V

0x7E = 0.635V

0x9E = 0.795V

0xBE = 0.955V

0xDE = 1.115V

0xFE = 1.275V

0x7F = 0.64V

0x9F = 0.8V

0xBF = 0.96V

0xDF = 1.12V

0xFF = 1.28V

Summary of Contents for MIC23656

Page 1: ...2018 Microchip Technology Inc DS50002815A MIC23656 Evaluation Board User s Guide...

Page 2: ...p received ISO TS 16949 2009 certification for its worldwide headquarters design and wafer fabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in California and Indi...

Page 3: ...nstallation and Operation 2 1 Introduction 9 2 2 Features 10 2 3 Getting Started 10 Chapter 3 GUI Installation and Operation 3 1 Getting Started 15 3 2 Graphical User Interface Installation 15 3 3 I2C...

Page 4: ...ion Describes the items in the Graphical User Interface Appendix A Schematic and Layouts Shows the schematic and layout diagrams for the MIC23656 Appendix B Bill of Materials BOM Lists the parts used...

Page 5: ...dialog button Click OK A tab Click the Power tab N Rnnnn A number in verilog format where N is the total number of digits R is the radix and n is a digit 4 b0010 2 hF1 Text in angle brackets A key on...

Page 6: ...latest software releases and archived software General Technical Support Frequently Asked Questions FAQs technical support requests online discussion groups Microchip consultant program member listing...

Page 7: ...ft start slope high side current limit HLL or Forced PWM mode of operation The 2 4V to 5 5V input voltage range low shut down and quiescent currents make the MIC23656 ideal for single cell Li Ion bat...

Page 8: ...roduct This board demonstrates the MIC23656 in a buck converter application supplied from an external voltage source 2 4V 5 5V with I2C programmed regulated output The I2C Monitor GUI allows comprehen...

Page 9: ...loading up to 6A control and monitor through the USB interface via I2C Monitor GUI Pin headers are also fitted for Bode Analysis and external I2C communication FIGURE 2 1 MIC23656 Step Down Regulator...

Page 10: ...up prior to any I2 C write operation The differences among the various product options are described in the MIC23656 data sheet The Evaluation Board carries the HAYFT option whose default output volta...

Page 11: ...et the input voltage and the load to the desired values with a maximum of 5 5V on the input voltage and a maximum load of 6A 6 Adjust the regulator output and monitor the STATUS registers as described...

Page 12: ...n Board provides injection points and a termination resistor R4 for AC loop gain measurements If needed the value of R4 can be changed to optimize the injection signal level Inject the oscillator at J...

Page 13: ...placing the EN jumper on the J6 header SDN position or applying a Logic 0 voltage on the EN test point Program it via I2 C interface to the desired output voltage and then start it by plac ing the EN...

Page 14: ...I emission 2 3 1 10 BENCH TESTING AT HIGH CURRENTS When testing the MIC23656 device at high load currents or when checking the over current protection behavior it may be necessary to remove the series...

Page 15: ...rom www microsoft com and follow the installation instructions 2 If Adobe Acrobat Reader is already installed go to Step 3 If not download Adobe Acrobat Reader from http get adobe com reader and follo...

Page 16: ...ield Wizard for I2CMonitor window click the Next button to start the installation FIGURE 3 1 Starting the I2 C Monitor Graphical User Interface Installation 7 The installation path can be changed alth...

Page 17: ...DS50002815A page 17 8 In the Ready to Install the Program window click the Install button and wait for the application to proceed with the installation The progress can be observed in the Status bar F...

Page 18: ...op icon or browse to Windows Start All Programs Microchip I2C Monitor FIGURE 3 4 The Installation Complete Window 3 3 I2 C MONITOR GRAPHICAL USER INTERFACE UNINSTALL In order to install a new version...

Page 19: ...onitor Graphical User Interface Main Window MIC23656 View NOTICE This chapter provides information regarding the use of the GUI only in the case of the MIC23656 device For other devices using the I2 C...

Page 20: ...e registers of the currently selected device to a file that can then be loaded into the GUI by using the Load registers from file button The saved file can also be edited open it with a text editor FI...

Page 21: ...r used to connect the board ScanAddr This button is used to scan for a valid address Connect Disconnect These buttons are used to connect disconnect the current selected device Voltage This drop down...

Page 22: ...15A page 22 4 2 6 MIC23656 I2C Programmable Features The MIC23656 I2 C Programmable Features area contains the items in Table 4 3 FIGURE 4 6 MIC23656 I2 C Programmable Features Area Low Range FIGURE 4...

Page 23: ...is check box activates automatic output pull down resistor when the MIC23656 is disabled Latch off after 4 OverTemp Cycles This check box sets the latch off after four overtemperature thermal shutdown...

Page 24: ...ITEMS Panel Items Description Status Power Good This box is checked if the output voltage reaches 91 of its set value Latched Off This box is checked if the regulator output is latched off due to four...

Page 25: ...gy Inc DS50002815A page 25 TABLE 4 6 STATUS LABELS Status Label Description STATUS Connected This message is shown when the GUI connects to a device STATUS Disconnected This message is shown when the...

Page 26: ...y Inc DS50002815A page 26 Appendix A Schematic and Layouts A 1 INTRODUCTION This appendix contains the following schematic and layouts for the MIC23656 Evaluation Board Board Schematic Board Top Silk...

Page 27: ...IN 6 SCL 7 SDA 8 EN 9 PG 10 VOUT 11 AGND 12 PGND SW 16 SW PGND PVIN PVIN SVIN SCL SDA EN PG VOUT AGND PGND SW 0 U1 PWR Net Tie 0 5mm NT1 AGND GND AGND AGND AGND D D GND GND GND 0R R8 0R R11 SCL SDA EN...

Page 28: ...Schematic and Layouts 2018 Microchip Technology Inc DS50002815A page 28 A 3 BOARD TOP SILK A 4 BOARD TOP COPPER AND SILK...

Page 29: ...Schematic and Layouts 2018 Microchip Technology Inc DS50002815A page 29 A 5 BOARD TOP COPPER A 6 BOARD BOTTOM COPPER...

Page 30: ...C 4 J1 J3 J12 J13 Connector Header 2 54 Male 1x2 Gold 5 84 MH TH Vertical FCI 77311 118 02LF 1 J2 Connector Header 2 54 Male 1x4 Tin 5 84 MH TH Vertical FCI 68002 404HLF 4 J4 J5 J15 J19 Connector TP P...

Page 31: ...SMD 0603 Panasonic ECG ERJ 3GSY0R00V 1 R12 Resistor TKF 10R 1 1 10W SMD 0603 Panasonic ECG ERJ 3EKF10R0V 1 U1 Microchip Analog Switcher Buck 2 4V to 5 5V MIC23656 HAYFT FTQFN 16 Microchip Technology I...

Page 32: ...FAULT Register FAULT OT_WARN EN_STAT BOOT_ERR SSD HICCUP OT LATCH_OFF PG REGISTER C 1 CTRL1 CONTROL REGISTER ADDRESS 0X00 R W 0 R W 0 R W 0 R W 0 R W 0 R W 0 R W 0 R W 0 TON ILIM EN_DELAY EN_INT EN_CO...

Page 33: ...bit read as 0 n Value at POR 1 Bit is set 0 Bit is cleared x Bit is unknown RC Read then clear bit bit 7 DIS_100PCT Disable 100 Duty Cycle 0 100 DC 1 Disable 100 DC bit 6 FPWM Force PWM 0 HLL 1 FPWM...

Page 34: ...xAA 0 855V 0xCA 1 015V 0xEA 1 175V 0x8B 0 7V 0xAB 0 86V 0xCB 1 02V 0xEB 1 18V 0x8C 0 705V 0xAC 0 865V 0xCC 1 025V 0xEC 1 185V 0x8D 0 71V 0xAD 0 87V 0xCD 1 03V 0xED 1 19V 0x8E 0 715V 0xAE 0 875V 0xCE 1...

Page 35: ...1 1V 0x8D 1 56V 0xAD 2 2V 0xCD 2 84V 0xED 3 48V 0x4E 0 79V 0x6E 1 11V 0x8E 1 58V 0xAE 2 22V 0xCE 2 86V 0xEE 3 5V 0x4F 0 8V 0x6F 1 12V 0x8F 1 6V 0xAF 2 24V 0xCF 2 88V 0xEF 3 52V 0x50 0 81V 0x70 1 13V 0...

Page 36: ...Bit is set 0 Bit is cleared x Bit is unknown RC Read then clear bit bit 7 OT_WARN Overtemperature Warning 0 No Fault 1 Fault bit 6 EN_STAT Buck ON OFF Control 0 OFF 1 ON bit 5 BOOT_ERR Boot Up Error 0...

Page 37: ...00 China Xian Tel 86 29 8833 7252 China Xiamen Tel 86 592 2388138 China Zhuhai Tel 86 756 3210040 ASIA PACIFIC India Bangalore Tel 91 80 3090 4444 India New Delhi Tel 91 11 4160 8631 India Pune Tel 91...

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