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User's Guide

SNVU277 – January 2014

1

General Description

The LM10502 is an advanced PMU containing two configurable, high efficiency buck regulators for
supplying variable voltages plus a low drop-out linear regulator. The device is ideal for supporting ASIC
and SOC designs for SSD and Flash drives.

2

Evaluation Kit Overview

The LM10502 evaluation kit is a single-board solution allowing control and measurement from a user
interface software. The board operates either from PC control via the USB port or as a separately
powered stand-alone evaluation platform.

The evaluation kit consists of

LM10502 Evaluation board REV 1

USB Interface cable

Evaluation software

A copy of the LM10502 User Guide (this document)

Figure 1. LM10502 Evaluation Board

1

SNVU277 – January 2014

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Copyright © 2014, Texas Instruments Incorporated

Summary of Contents for LM10502

Page 1: ...iew The LM10502 evaluation kit is a single board solution allowing control and measurement from a user interface software The board operates either from PC control via the USB port or as a separately powered stand alone evaluation platform The evaluation kit consists of LM10502 Evaluation board REV 1 USB Interface cable Evaluation software A copy of the LM10502 User Guide this document Figure 1 LM...

Page 2: ...events Connect the LM10502 Evaluation board to the USB port of a PC using the USB cable When the USB board is plugged in for the first time the operating system prompts for New hardware found and installs the USB driver If this does not happen try unplugging and plugging in the cable again Always disconnect the USB cable from the computer when changing jumper settings If the evaluation board is no...

Page 3: ...results Auto write checkbox If this box is checked any change to registers will be written to the device immediately Otherwise user must press Write regs button to update registers This way user can change values in several registers and update changes simultaneously Update button Reads content of every register and updates screen accordingly Write regs button If Auto write checkbox is disabled us...

Page 4: ...old voltage and enable hysteresis The Misc frame contains controls for LDO Sleep Mode bit and Interrupt pin polarity 5 5 Log Tab Figure 3 This tab records all SPI transfers The user can copy write or read sequences to clipboard The log window can be cleared by pressing clear button 5 6 Menus Under File menu user can save and load contents of register map Under Tools menu user can open Direct Regis...

Page 5: ...nd 2 will provide a 3 3V supply to the device Table 1 Battery Connector J2 Pin Function 1 VCC3V3 2 Battery terminal 3 GNC TP36 VCC5V 6 2 Control A green and a yellow LED will be illuminated once the LM10502 has started up Place a jumper on JP1 to connect VIN_IO to LDO_OUT Otherwise to power VIN_IO from the on board 3 3V supply place a jumper on JP11 JP1 should be open in this case 6 3 Logic Connec...

Page 6: ...nnect LDO_VIN to VIN via JP6 and VCOMP 6 4 Board Power INPUT and OUTPUT Connectors Table 4 Connector J3 Pin Function 1 VIN_B1 2 VIN_B1 sense 3 GND Table 5 Connector J4 Pin Function 1 BUCK1 2 BUCK1 sense 3 GND Table 6 Connector J5 Pin Function 1 VIN_B2 2 VIN_B2 sense 3 GND Table 7 Connector J6 Pin Function 1 BUCK2 2 BUCK2 sense 3 GND Table 8 Connector J7 Pin Function 1 LDO_VIN 2 LDO_VIN sense 3 GND...

Page 7: ...ion 1 LDO 2 LDO sense 3 GND 6 5 User Connector J1 For accessing the signals externally via this connector jumpers from JP2 to JP5 and JP7 and JP8 should be set to EXT position Table 12 User Connector Pins Pin Function 1 VIN_IO 2 SPI_CS 3 SPI_DI 4 SPI_DO 5 SPI_CLK 6 GND 7 RESET 8 IRQ 9 10 GND 7 SNVU277 January 2014 Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 8: ...Evaluation Board Layer www ti com 7 Evaluation Board Layer Figure 6 LM10502 Board Top Layer 8 SNVU277 January 2014 Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 9: ...w ti com Schematics of the LM10502 Evaluation Board 8 Schematics of the LM10502 Evaluation Board Figure 7 9 SNVU277 January 2014 Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 10: ...Schematics of the LM10502 Evaluation Board www ti com Figure 8 10 SNVU277 January 2014 Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 11: ...ring the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repair such EVM or provide replacements Repaired EVMs shall be warranted for the remainder of the original warranty period Replaced EVMs shall be warranted for a new full ninety 90 day warranty period 3 ...

Page 12: ... by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Concernant les EVMs avec antennes détachables Conformément à la rég...

Page 13: ... connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the inputs and outputs kept within the specified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors cu...

Page 14: ...F REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE LOSS OF DATA OR BUSINESS INTERRUPTION NO CLAIM SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED 8 2 Specific Limitations IN NO EVENT SHALL T...

Page 15: ...esponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

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