Texas Instruments LM10507 Manuel utilisateur

User's Guide

SNVU409–May 2014

LM10507 User's Guide

1 General Description

The LM10507 is an advanced PMU providing four regulated outputs from three configurable high

efficiency buck regulators and one LDO regulator. The device can operate in a stand-alone application but

external inputs and an SPI serial interface provide the ability for an external system device to control the

device outputs. The device has been designed to support ASIC and SOC power requirements for SSD

and Flash drives.

2 Evaluation Kit Overview

LM10507 Evaluation Kit is a self-contained evaluation platform allowing access to the device outputs with

software provided to test the device control functions. The EVM is designed to be connected to a

computer via a USB cable and can be powered from this input or may be powered from an external

supply. It may also be used as a stand-alone board (powered externally) to provide the pre-set default

output values from the LM10507 device.

The evaluation kit consists of:

• LM10507 Evaluation board REV 1

• USB Interface cable

• CD including

– Evaluation software

– LM10507 datasheet

• Evaluation kit document

Figure 1. LM10507 Evaluation Board

SNVU409–May 2014 LM10507 User's Guide

Evaluation Software

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3 Evaluation Software

LM10507 evaluation software is supplied together with documentation regarding the circuit. Copy the

folder “lm10507” to your PC’s hard disk. The software is run by double clicking the icon of lm10507.exe

found in folder. The software does not require any installation.

The evaluation software allows control of all registers necessary to program the device. To simplify the

use of the software, the registers are set by directly named controls. The user does not need the register

value as this is taken care of by the software, e.g. to change BUCK3 output voltage to 1.0V, choose the

value from the drop-down list and software will send the correct value to the BUCK3 control register. To

observe any change in the device outputs, the Poll Status check box must be set.

From the menus there is a facility to enable direct register access should the user require this.

4 Hardware Set Up

Please use ESD protection when handling the evaluation boards to prevent any damage due to ESD

events!

Connect the LM10507 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 not responding or the evaluation software hangs up, disconnect the USB cable

for 5 seconds.

5 Using the Evaluation Software

Figure 2. System Settings Tab

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Using the Evaluation Software

The graphical user interface has a main screen with 2 tab screens which allow control and indication for

different functions of the device.

Once the evaluation board is connected to the PC, the device can be controlled via the software interface.

The LM10507 will become active as soon as the USB cable is plugged in and ‘Power UP’ is clicked.

When USB cable is plugged in, an orange led LD1 (DC IN) is illuminated. When the device starts up

correctly, a green led LD1 (PWR_OK) is lit. A red led LD2 (STANDBY) is illuminated when the LM10507

dev_sleep mode is active. All the device functions can be accessed via the control buttons.

5.1 Main Screen (Figures 2 & 3)

The Main screen has a TAB section placed so that the right hand side and lower part of screen is visible

as the background for either tab selection. Common functions can be controlled and monitored here.

5.2 Right Part of Screen

The 'Probe' frame contains results of voltage measurements using on-board ADC's. The input voltage and

device outputs are shown here when the board is powered.

The 'Pins' frame shows the status of the PWR_OK pin. It also contains checkboxes to control DEVSLEEP

and ENABLE signals.

Pressing the 'RESET_DEVICE' button causes 50 ms negative pulse in reset pin.

Pressing the ‘Power UP’ button enables the device outputs, forces the ENABLE pin to go high, and then

updates the screen according to default register values.

5.3 Lower Part of Screen

This part of the screen contains following checkboxes and buttons

‘’Poll status’’ checkbox allows continuous reading of the evaluation chip status register, the state of the I/O

pins and the voltage measurement results. The screen is updated accordingly.

‘’Auto write’’ checkbox. If this box is checked, any change to the registers will be written to the device

immediately. Otherwise the user must press 'Write regs' button to send the update to the registers. In this

way, the user can change values in several registers and update the changes in one communication burst.

"Update’’ button reads content of every register and updates the screen accordingly.

‘’Write regs’’ button. If the 'Auto write' checkbox is disabled, the user can press this button to update the

content of every register.

There is a status bar at the bottom of the screen. It shows if the connection to the evaluation board is

established, and displays information about the last register write/read operation. Register information is

given in the format: ‘’R/WXX:YY’’, where the first letter indicates operation (read or write), XX is register

address and YY is data.

5.4 System Settings Tab (Figure 2)

Selecting this tab allows access to the controls of Buck1, Buck2 and Buck3 regulators, LDO enable,

Oscillator Disable and PWR_OK pin polarity. It also shows a log of occurred events.

In System 'Status' frame, the user can observe the device output status bits. Also the user can enable

'Poll status' checkbox at lower part of screen to get continuous status updates (1 update/sec).

In 'Buck1', 'Buck2' and 'Buck3' frames the user can set the output voltage of each buck regulator, enable

the individual regulator, or force it into PWM mode. Additionally in 'Buck3', the user can set the output

voltage for normal mode and DevSleep mode.

The 'Misc' frame contains controls for Oscillator disable bit and PWR_OK pin polarity.

SNVU409–May 2014 LM10507 User's Guide

Using the Evaluation Software

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5.5 Log tab (Figure 3)

Figure 3. Log Tab

This tab records all SPI transfers. User can copy write or read sequences to clipboard. The log window

can be cleared by pressing clear button.

6 Menus

Under “File” menu, the user can save and load contents of the device registers.

Under “Tools” menu the user can open “Direct Register Access” dialog, shown in figure 4.

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Using the Evaluation Hardware

Figure 4. Direct Register access

Binary data may be written and read from the registers. Use hexadecimal values in address and data

fields. Individual bits for the register set in 'Address' are shown with a brief description of their function in

this dialog window. The Correct data value can also be created by setting and clearing these individual bit

check boxes. The value is immediately written to the device by pressing ‘Write’ button and the register

setting may be read from the device by pressing ‘Read’ button.

7 Using the Evaluation Hardware

Connectors are provided to allow a battery connection and to allow output voltage measurement. Jumpers

allow user selectable or USB controlled settings for device functions.

7.1 Power Supply

The evaluation board may be powered from a battery connector or from the USB interface.

Set jumper between J2 pin2 and TP36 to use supply from USB. Maximum current available for the EVM

when using the USB supply will be 500mA.

Table 1. Battery Connector Pins BATTERY CONNECTOR J2

Pin Function

1 Battery (+) terminal

2 GND

8 Control

A green LED (PWR_OK) will be illuminated once the LM10507EVM has power applied and the device is

enabled. JP11 and J13 should be set accordingly.

The logic signals can be controlled either by the evaluation software or externally through connector

labeled ‘I/O LINE SEL’. Set the jumper block from JP2 to JP9 accordingly.

Table 2. User Connector Pins USER CONNECTOR J1

Pin Function

1 VIN_IO

2 SPI_CS

3 SPI_DI

SNVU409–May 2014 LM10507 User's Guide

Control

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Table 2. User Connector Pins USER CONNECTOR J1 (continued)

Pin Function

4 SPI_DO

5 SPI_CLK

6 DEVSLEEP

7 RESET

8 PWR_OK

9 ENABLE

10 GND

For accessing the signals externally via this connector, jumpers from JP2 to JP9 should be set to EXT

position.

Table 3. Connector J3 Pins

Pin Function

1 VIN_B1

2 VIN_B1 sense

3 GND

Table 4. Connector J4 Pins

Pin Function

1 BUCK1

2 BUCK1 sense

3 GND

Table 5. Connector J5 Pins

Pin Function

1 VIN_B2

2 VIN_B2 sense

3 GND

Table 6. Connector J6 Pins

Pin Function

1 BUCK2

2 BUCK2 sense

3 GND

Table 7. Connector J7 Pins

Pin Function

1 VIN_B3

2 VIN_B3 sense

3 GND

Table 8. Connector J8 Pins

Pin Function

1 BUCK3

2 BUCK3 sense

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Control

Table 8. Connector J8 Pins (continued)

Pin Function

3 GND

Table 9. Connector J11 Pins

Pin Function

1 VIN

2 VIN sense

3 GND

Table 10. Connector J12 Pins

Pin Function

1 LDO

2 LDO sense

3 GND

SNVU409–May 2014 LM10507 User's Guide

BUCK1

FB_B1

SW_B1VIN_B1

GND_BUCK

BUCK2

FB_B2

BUCK3

FB_B3

GND_BUCK

SW_B2

GND_BUCK

2.2μH

LPS3010-222MLB

2.2μH

LPS3010-222MLB

2.2μH

LPS3010-222MLB

GND_BUCK

2.2μF

4.7μF

2.2μF

SB1

SB2

SB3

VIN_B1

VIN_B2

VIN_B3

SB4 VIN

VIN LDO

SPI_CS

SPI_DI

SPI_DO

SPI_CLK

DEVSLP

RESET

PWR_OK

VCC

ENABLE

BUCK1

BUCK2

BUCK3

VCC5V

SPI_CS_USB

SPI_DI_USB

SPI_DO_USB

SPI_CLK_USB

DEVSLP_USB

RESET_USB

PWR_OK_USB

ENABLE_USB

TSW-103-07-G-S

VIN_B1

VIN_B2

VIN_B3

BUCK1

BUCK2

BUCK3

VIN

LDO

VIN_IO

Red

LD2

Orange

LD1

STANDBY

DC IN

DEVSLP 1

60V

2N7002ET1G

LDO

VCC

VIN_B1

B5 SW_B1 A6

SW_B1 B6

FB_B1 A4

FB_B1 B4

GND_B1 A7

GND_B1 B7

VIN_B2

G3 SW_B2 F2

SW_B2 G2

FB_B2 F3

GND_B2 G1

VIN_B3

G5 SW_B3 F6

SW_B3 G6

FB_B3 F5

GND_B3 G7

VIN

A3 LDO A2

GND C7

VIN_IO

SPI_CS

SPI_DI

D1 SPI_DO E1

SPI_CLK

DEVSLP

RESET

PWR_OK A1

ENABLE

G4 GND F4

GND B2

GND B3

GND D7

LM10507TME-A/NOPB

Green

LD3

PWR_OK

60V

2N7002ET1G

PWR_OK

J13

VCC3.8

TP36

POWER SUPPLY

TEST

22μF

J11

J12

TSW-103-07-G-S

J14

DNF

JP2

JP3

JP4

JP5

JP6

JP7

JP8

JP9

Assembly Note

ZZ5

Jumpers SH-J2 to SH-J09 and SH-J11 installed on matching JP# pins 2and 3

SW_B3

22μF

510

SPI_CS

SPI_DO

SPI_DI

DEVSLP

SPI_CLK

RESET

PWR_OK

ENABLE

4.7μF

VIN_B2

4.7μF

VIN_B3

4.7μF

VIN_IO

TEST

VIN_IO

SH-J2

SH-J3

SH-J4

SH-J5

SH-J6

SH-J7

SH-J8

SH-J9

SH-J11

SH-J13

SH-J1

Assembly Note

ZZ6

Jumper SH-J13 installed on matching J13 pins 1and 2for LED operation

Assembly Note

ZZ7

Jumper SH-J1 installed between J2 pins2 - 3for default 3.8V operation

Assembly Note

ZZ8

Jumper SH-J11 installed between J11 pins1 - 2for internal VIN_IO

Schematics

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9 Schematics

Figure 5. LM10507 Evaluation Board (sheet1)

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VCC5V

PWR_OK_USB

D2D1D3

VCC5V VCC3.3_D

IN 1

OUT

GND

IN 6

ADJ

DAP 7

NC 3

LP38691SD-ADJ

DEVSLP_USB

BUCK1

BUCK2

VCC3.3_DVIN_IO

SPI_CS_USB

SPI_DI_USB

SPI_CLK_USB

SPI_DO_USB

BUCK3

VCC3.3_D

J10

10.0k

R17

10.0k

R15

10.0k

R14

10.0k

R12

VCC3.8

P0.1 1

P0.0 2

GND 3

D+ 4

D- 5

VDD 6

REGIN 7

VBUS 8

RST_C2CK 9

P3.0_C2D 10

P2.7 11

P2.6 12

P2.5 13

P2.4 14

P2.3 15

P2.2 16

P2.1

P2.0

P1.7

P1.6

P1.5

P1.4

P1.3

P1.2

P1.1

P1.0

P0.7

P0.6

P0.5

P0.4

P0.3

P0.2

C8051F320-GQ

30 ohm

FB1

JP11

RESET_USB

ENABLE_USB

VCC

LDO

10μF

C59

200k

R55

100k

R56

10μF

C60

4.7μF

C45

0.1μF

C46

0.1μF

C50

4.7μF

C49

10.0k

R62

1.50k

R34

LDO_S

B2_S

B3_S

B1_S

VBATT_S

10.0k

R11

10.0k

R13

10.0k

R16

18.2k

R18

10.0k

R19

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Schematics

Figure 6. LM10507 Evaluation Board (sheet 2)

SNVU409–May 2014 LM10507 User's Guide

Evaluation Board Layer

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10 Evaluation Board Layer

Figure 7. LM10507 Board Top Layer

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