Texas Instruments LM10524EVM User manual

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
2LM10524EVM User Guide SNVU314–January 2014
Submit Documentation Feedback
Copyright © 2014, Texas Instruments Incorporated

www.ti.com 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
3
SNVU314–January 2014 LM10524EVM User Guide
Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated

Evaluation Software www.ti.com
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.
4LM10524EVM User Guide SNVU314–January 2014
Submit Documentation Feedback
Copyright © 2014, Texas Instruments Incorporated

www.ti.com 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.
5
SNVU314–January 2014 LM10524EVM User Guide
Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated

Using the Evaluation Software www.ti.com
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.
6LM10524EVM User Guide SNVU314–January 2014
Submit Documentation Feedback
Copyright © 2014, Texas Instruments Incorporated

www.ti.com 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
7
SNVU314–January 2014 LM10524EVM User Guide
Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated

Using the Evaluation Hardware www.ti.com
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
8LM10524EVM User Guide SNVU314–January 2014
Submit Documentation Feedback
Copyright © 2014, Texas Instruments Incorporated

www.ti.com 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
2
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
9
SNVU314–January 2014 LM10524EVM User Guide
Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated

1
1
2
2
3
3
4
4
5
5
6
6
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
© Texas Instruments 2013
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
GND_BUCK
SW_B3
1µHL3
GND_BUCK
0
SB3
VIN_B1
VIN_B2
VIN_B3
VIN
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
4 1 2 3
J2
1
TP27
2
1
3
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
23
Q2
VBATT
SLEEP_EN
DEVSLP_CTRL
SPI_CSx
SPI_DIx
SPI_DOx
SPI_CLKx
DEVSLPx
PWRUP_MODEx
DEVSLP_OVR1x
DEVSLP_CTRL
IRQx
SLEEP_EN
47µF
C4
47µF
C7
47µF
C9
1
23
Q3
ALLOW_SLEEP_USB
VIN_IO
200k
R4
DEVSLP
IRQx
1
2
3
J3
1
2
3
J4
1
2
3
J5
1
2
3
J6
1
2
3
J7
1
2
3
J8
1
2
3
J15
1
2
3
J14
1
2
3
J11
1
2
3
J12
1 2
J13
Green
LD1
Red
LD2
510
R1
510
R3
4.7µF
C3
4.7µF
C6
4.7µF
C8
10µF
C10
2.2µF
C5
VIN_IO
A1
PWR_OK
A2
VIN
A3
DEVSLP
A4
VIN_B1 A5
SW_B1 A6
GND_B1 A7
GND
B1
GND
B2
VCOMP
B3
FB_B1 B4
VIN_B1 B5
SW_B1 B6
GND_B1 B7
SPI_CLK
C1
GND
C2
IRQ
C3
FB_B1 C4
FB_B1 C5
NC
C6
DEVSLP_OVR1
C7
SPI_DI
D1
DEVSLP_OVR2
D7
SPI_DO
E1
DEVSLP_CTRL
E7
SPI_CS
F1
SW_B2 F2
FB_B2 F3
NC
F4 FB_B3 F5
SW_B3 F6
SLEEP_EN
F7
GND_B2 G1
SW_B2 G2
VIN_B2 G3
NC
G4
VIN_B3 G5
SW_B3 G6
GND_B3 G7
GND_B2 H1
SW_B2 H2
VIN_B2 H3
POWERUP_MODE
H4
VIN_B3 H5
SW_B3 H6
GND_B3 H7
U1
LM10524TME
DEVSLP_OVR2x
DEVSLP_OVR2
SW_B2
2.2µF
C1
VCC3.8
5
4
1
2
3
6
7
8
9
10
11
J1
TSW-111 -07-G-S
2.2µHL1
2.2µHL2
0
SB4
0
SB2
0
SB1
0
SB5
0
SB6
SH-J2
SH-J3
SH-J4
SH-J5
SH-J6
SH-J7
SH-J8
SH-J9
SH-J10
SH-J13
2
1
3
JP3
2
1
3
JP4
2
1
3
JP5
2
1
3
JP6
2
1
3
JP7
2
1
3
JP8
2
1
3
JP9
2
1
3
JP10
2
1
3
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 www.ti.com
7 Schematics
Figure 5. LM10524EVM Schematic
10 LM10524EVM User Guide SNVU314–January 2014
Submit Documentation Feedback
Copyright © 2014, Texas Instruments Incorporated