Texas Instruments LM10524EVM Bedienungsanleitung

LM10524EVM User Guide

User's Guide

Literature Number: SNVU314

January 2014

User's Guide

SNVU314–January 2014

LM10524EVM User Guide

The LM10524 is an advanced PMU containing three configurable, high efficiency buck regulators for

supplying variable voltages. The device is ideal for supporting ASIC and SOC designs for SSD and

Flash drives.

Topic ........................................................................................................................... Page

1 Evaluation Kit Overview ....................................................................................... 3

2 Evaluation Software ............................................................................................ 4

3 Hardware Set Up ................................................................................................. 4

4 Using the Evaluation Software .............................................................................. 4

5 Menus ................................................................................................................ 7

6 Using the Evaluation Hardware ............................................................................. 7

7 Schematics ....................................................................................................... 10

8 PCB Layers ...................................................................................................... 12

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Evaluation Kit Overview

1 Evaluation Kit Overview

LM10524EVM board operates through the USB port. The Evaluation Kit consists of:

• LM10524EVM Board

• USB Interface Cable

• Evaluation Kit Document (this document).

Figure 1. LM10524EVM Board

SNVU314–January 2014 LM10524EVM User Guide

Evaluation Software

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2 Evaluation Software

LM10524 evaluation software is supplied together with documentation regarding the circuit. Download the

software to your PC’s hard disk. Run the software by double clicking the icon of lm10524.exe found in the

folder. The software does not require any installation.

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

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

value as this is handled by the software. For example, to change BUCK3 output voltage to 1.0 V, choose

the related value and the software will send the correct value to the BUCK3 control register to update the

output level on Buck 3. To observe the corresponding change in the probes, check the Poll Status box at

bottom left.

3 Hardware Set Up

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

events!

Connect the LM10524 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.

4 Using the Evaluation Software

Figure 2. System Settings Tab

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

different functions of the device.

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Using the Evaluation Software

4.1 Operation

Once the evaluation board is connected to the PC, use the software interface to control the device.

The LM10524 should become active as soon as the USB cable is plugged in and ‘Power Up Mode’ is

clicked.

To Enable DEVSLP mode, PWR_UP mode should be pulled low using PWR_UP Pulse Button.

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

green LED, LD1 (PWR_OK), is lit. When the LM10524 is in devsleep mode, A red LED, LD2 (DEVSLP), is

lit. All the device functions can be accessed via the control buttons.

4.2 Main Screen (Figure 2 &Figure 3)

The right and lower part of screen is visible as the background for both tab screens. Common functions

can be controlled here.

4.3 Right Part of Screen

The Probe frame contains the results of the voltage measurements. Values can be read when the device

becomes active.

The Pins frame shows the status of IRQ pin & PWR_UP mode. It also contains checkboxes to control

DEVSLEEP and PWR_UP PULSE signals.

SNVU314–January 2014 LM10524EVM User Guide

Using the Evaluation Software

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4.4 Lower Part of Screen

This part of the screen contains the following checkboxes and buttons:

• ‘’Poll status’’ checkbox: Allows continuous reading of the evaluation chip status register, the state of

I/O pins, and the voltage measurement results.

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

immediately. Otherwise, the user must press "Write regs" button to update registers. This way, the 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, the user can press this button to update the

content of every register.

The status bar at the bottom right corner of the window indicates whether or not the connection to the

evaluation board has been established, and displays information about the last register write/read

operation. Register information is given in the format: "R/WXX:YY", where first letter indicates operation

(Read or Write), XX is the register address, and YY is data.

Figure 3. Log Tab

4.5 System Settings Tab (Figure 2)

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

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

In System status/events frame, the user can observe the Status bits. Also, the user can enable Poll status

checkbox at the lower left corner of the window to get continuous status updates (1 update/sec).

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

each regulator, or force it to PWM mode. Also in Buck3, user can set the output voltage for normal mode

and DevSleep mode.

"Misc Frame" contains controls for Interrupt pin polarity.

4.6 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.

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Menus

5 Menus

Under the “File” menu the user can save and load contents of register map.

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

Figure 4. Direct Register access

The registers may read and write binary data. Use hexadecimal values in address and data fields. Correct

data value can also be created by setting and clearing individual bits. Value is immediately written to the

device by pressing the "Write" button, and read from the device by pressing the "Read" button. Next to

each bit is a description.

6 Using the Evaluation Hardware

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

selectable or USB controlled settings for device functions.

6.1 Power Supply

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

Set jumper between J2 pin2 and TP27 to use supply from USB. Maximum current for USB supply is 500

mA.

Table 1. BATTERY CONNECTOR J2

Battery connector pins

Pin Function

1 Battery (+) Terminal

2 GND

SNVU314–January 2014 LM10524EVM User Guide

Using the Evaluation Hardware

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6.2 Control

A green LED (PWR_OK) will be illuminated once the LM10524 has started up. JP11 and J13 should be

set accordingly.

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

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

Table 2. USER CONNECTOR J1

User Connector Pins

Pin Function

1 VIN_IO

2 SPI_CS

3 SPI_DI

4 SPI_DO

5 SPI_CLK

6 DEVSLP

7 PWRUP

8 INTERRUPT

9 DEVSLP_OVR1

10 DEVSLP_OVR2

11 GND

For accessing the signals externally via this connector, jumpers from JP2 to JP10 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 J 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

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Using the Evaluation Hardware

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

3 GND

Table 9. CONNECTOR J11 Pins

Pin Function

1 VIN

2 VIN_sense

3 GND

Table 10. CONNECTOR J12 Pins

Pin Function

1 Power_OK

3 GND

Table 11. CONNECTOR J13 Pins

Pin Function

1 VCOMP

2 GND

Table 12. CONNECTOR J14 Pins

Pin Function

1 SLEEP_EN

2 IRQx

3 DEVSLP_CTRLx

Table 13. CONNECTOR J15 Pins

Pin Function

1 VIN_IO

2 ALLOW_SLEEP_EXT

3 GND

SNVU314–January 2014 LM10524EVM User Guide

D D

C C

B B

A A

1 2

LM10524EVM REVA

10/15/2013

SV600841 pg1.SchDoc

Sheet Title:

Size:

Mod. Date:

File:

Sheet: of

Bhttp://www.ti.com

Contact:h ttp://www.ti.com/support/

LM10524EVMProject Title:

Designe d for: Public Release

Assembly Variant: Variant name not interpreted

Drawn By:

Engineer: Robert Te trault

Texas Instruments and/or its licensors do not warrant the accuracy or completeness of this specification or any information contained therein. Texas Instruments and/or its licensors do not

warrant that this design will meet the specifications, will be suitable for your application or fit for any particular purpose, or will operate in an implementation. Texas Instruments and/or its

licensors do not warrant that the design is production worthy. You should completely validate and test your design implementation to confirm the system functionality for your application.

Not in version controlSVN Rev:

SV600841Number: Rev: B

BUCK1

FB_B1

SW_B1

VIN_B1

GND_BUCK

BUCK2

FB_B2

VIN_B2

BUCK3

FB_B3

VIN_B3

GND_BUCK

SW_B3

1µHL3

GND_BUCK

SB3

VIN_B1

VIN_B2

VIN_B3

VIN

PWR_OK

VCOMP

SPI_CS

SPI_DI

SPI_DO

SPI_CLK

DEVSLP

PWRUP_MODE

IRQ

VIN_IO

VBATT

DEVSLP_OVR1

BUCK1

BUCK2

BUCK3

BATTERY CONNECTOR

TP27

JP2

SPI_CS_USB

SPI_DI_USB

SPI_DO_USB

SPI_CLK_USB

DEVSLP_USB

PWRUP_MODE_USB

IRQ_USB

DEVSLP_OVR1_USB

DEVSLP_OVR2_USB

VIN_B1

VIN_B2

VIN_B3

BUCK1

BUCK2

BUCK3

VIN

PWR_OK

VBATT

VIN_IO

DEVSLPDC IN

DEVSLP 1

VBATT

SLEEP_EN

DEVSLP_CTRL

SPI_CSx

SPI_DIx

SPI_DOx

SPI_CLKx

DEVSLPx

PWRUP_MODEx

DEVSLP_OVR1x

DEVSLP_CTRL

IRQx

SLEEP_EN

47µF

ALLOW_SLEEP_USB

VIN_IO

200k

DEVSLP

IRQx

J15

J14

J11

J12

J13

Green

LD1

Red

LD2

510

4.7µF

10µF

C10

2.2µF

VIN_IO

PWR_OK

VIN

DEVSLP

VIN_B1 A5

SW_B1 A6

GND_B1 A7

GND

VCOMP

FB_B1 B4

VIN_B1 B5

SW_B1 B6

GND_B1 B7

SPI_CLK

GND

IRQ

FB_B1 C4

FB_B1 C5

DEVSLP_OVR1

SPI_DI

DEVSLP_OVR2

SPI_DO

DEVSLP_CTRL

SPI_CS

SW_B2 F2

FB_B2 F3

F4 FB_B3 F5

SW_B3 F6

SLEEP_EN

GND_B2 G1

SW_B2 G2

VIN_B2 G3

VIN_B3 G5

SW_B3 G6

GND_B3 G7

GND_B2 H1

SW_B2 H2

VIN_B2 H3

POWERUP_MODE

VIN_B3 H5

SW_B3 H6

GND_B3 H7

LM10524TME

DEVSLP_OVR2x

DEVSLP_OVR2

SW_B2

2.2µF

VCC3.8

TSW-111 -07-G-S

2.2µHL1

2.2µHL2

SB4

SB2

SB1

SB5

SB6

SH-J2

SH-J3

SH-J4

SH-J5

SH-J6

SH-J7

SH-J8

SH-J9

SH-J10

SH-J13

JP3

JP4

JP5

JP6

JP7

JP8

JP9

JP10

JP13

Assembly Note

ZZ5

Jumpers SH-J2 to SH-J10 and SH-J13 installed on matching JP# pins 2 and 3

ALLOW_SLEEP_EXT

Schematics

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7 Schematics

Figure 5. LM10524EVM Schematic

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