SNVU888 March   2024

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Setup
    2. 2.2 Jumper Information
    3. 2.3 Power Supply
  9. 3Software
    1. 3.1 Software Description
    2. 3.2 GUI Installation
    3. 3.3 Graphical User Interface (GUI) Guidance
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks

2.2 Jumper Information

Note: Select LP5811WCSP/LP5811WSON/LP5810WCSP/LP5810WSON by the jumper setting and different I2C target address.

Multiple devices can be evaluated at same time.

  • If LP5810A is under test, then use I2C target address 0x14 and setup the jumper with "A". (J18, J1, J2, J3, J43)

  • If LP5811B is under test, then use I2C target address 0x15 and setup the jumper with "B". (J18, J16, J21, J23, J26, J43)

  • If LP5810C is under test, then use I2C target address 0x16 and setup the jumper with "C". (J18, J15, J8, J10, J43)

  • If LP5811D is under test, then use I2C target address 0x17 and setup the jumper with "D". (J18, J17, J35, J36, J39, J43)

On the default jumper setting, users can evaluate LP5811D under the conditions below:

  • Vin is provided by 3.3V from USB2ANY(Don't need external power supply).
  • Synchronous boost is enabled.
  • I2C target address is set to 0x17.

Figure 2-2 shows the default jumper settings.

GUID-20240218-SS0I-803C-T3XS-KZHTCNGMSGCX-low.svgFigure 2-2 Default Jumper Setting

Users can configure the EVM by different jumper settings. The sections below illustrate the functions of the jumpers.

Table 2-1 Power Supply
Jumper NumberUpper PinCenter Pin 1Center Pin 2Lower Pin
J18VCC_DVCC_CVCC_AVCC_B
VCC
J19VCC_EXTVCCVCC3V3_U2A

VCC: Power supply can be connected to the device that is under evaluation.

VCC_X: The power supply for device with "X" part number. For example, VCC_A is the power supply for LP5810A.

VCC_EXT: External power supply.

3V3_U2A: Power supply from USB2ANY interface adapter.

Table 2-2 I2C Input Connection
Jumper NumberLeft PinRight Pin
J403V3_Pull_Up3V3_U2A
J41I2C_SCLSCL_U2A
J42I2C_SDASCL_SDA

3V3_Pull_Up: 3.3V pull up for I2C signal, connected to SDA/SCL by 4.7kohm resistor.

I2C_SCL/SDA: I2C signal, connected to all devices on the board.

SCL/SDA_U2A: I2C signal from USB2ANY interface adapter.

3V3_U2A: Power supply from USB2ANY interface adapter.

Table 2-3 Device Power Supply Connection
Jumper numberUpper PinCenter PinLower Pin
J14VCC_A-VIN_A
J15VIN_C-VCC_C
J16VIN_BVCC_BVOUT_B
J17VOUT_DVCC_DVIN_D

VCC_X: Power supply for device with "X" part number. For example, VCC_A is the power supply for LP5810A.

VIN_X: Power supply for LP5810 or Input voltage for LP5811 boost module.

VOUT_X: Output voltage for LP5811 boost module or power supply for LP5811 when working on linear mode (boost disabled).

Table 2-4 Boost Enable/Disable Jumper:
Jumper NumberLeft PinCenter PinRight Pin
J35LEN_DH
J21LEN_BH

EN_D/B: Enable pin for LP5811B/D: pull high to enable boost function, pull low to disable the boost.

L: Connect to GND.

H: Connect to VIN_B/D.

Table 2-5 LED Connect Jumper
Jumper NumberUpper PinCenter Pin 1Center Pin 2Lower Pin
J10/J39D3_C/DD2_C/DD1_C/DD0_C/D
OUT3_C/DOUT2_C/DOUT1_C/DOUT0_C/D
J3/J26D0_A/BD1_A/BD2_A/BD3_A/B
OUT0_A/BOUT1_A/BOUT2_A/BOUT3_A/B

DX_Y: Connect to LEDX for device Y version. For example, D0_A is connected to LED0 for LP5810A.

OUTX_Y: Connect to the output channel X of device Y. For example, OUT0_A is connected to output channel 0(OUT0) of LP5810A.

Table 2-6 VLED Power Supply Select
Jumper NumberVLED
J43VOUT_D
VIN_C
VLED_EXT
VLED_EXT
VIN_A
VOUT_B

The LED supply voltage VLED can be provided by both LED driver power supply(VOUT_B/D, VIN_A/C) and external power supply (VLED_EXT).

Table 2-7 SYNC Signal Connection
Jumper NameLeft PinRight Pin
J2/J8GNDSYNCA/C
J23/J36SYNCB/DGND
Table 2-8 SYNC Signal Connection
Jumper NumberLeft PinCenter Pin 1Center Pin 2Right Pin
J9SYNC_ASYNC_CSYNC_DSYNC_B
SYNC_COM

The SYNC pin can be used to synchronize the lighting effects among multiple devices. When this function is not used, connect to GND.

If multiple device need to be tested together, then the SYNC pin is useful for synchronizing the devices. At that time, connect the SYNC_X of the devices under tested to the SYNC_COM, which is the common point for SYNC signal.

After the multiple SYNC signals are connected together, make sure one of the LED drivers is configured the SYNC pin to output, and other devices are configured as SYNC input. Otherwise, an external clock is needed for the SYNC_COM.