Texas Instruments BOOST-LP5569EVM, Руководство пользователя

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Setup
3 SNVU564A – July 2017 – Revised August 2017
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Copyright © 2017, Texas Instruments Incorporated
Using the BOOST-LP5569EVM Evaluation Module
1 Setup
This section describes the jumpers and connectors on the EVM as well and how to properly connect, set
up, and use the LP5569EVM. The input voltage range for V
IN
is 2.5 V to 5.5 V. The input voltage range for
V
1P8
is 1.65 V to 1.95 V.
1.1 Input/Output Connector Description
• ADDR_SEL – is provided to configure the I
2
C slave address.
• DISVIO – is provided to disable the onboard 1.8-V LDO when supplying an external 1.8-V supply.
• I18 – is provided to measure the V1P8 supply current through a 1- Ω sense resistor.
• I
2
C – is provided to monitor the I
2
C SDA and SCL signals.
• IIN – is provided to measure the VIN supply current through a 1-
Ω
sense resistor.
• IOUT – is provided to measure the VOUT supply current. The jumper must be installed for normal
operation.
• J1 and J2 are the TI LaunchPad connector interface.
• JLED – is provided to connect an external LED to the LP5569EVM evaluation module.
• JIS – is provided to measure the LED current through a 1-
Ω
sense resistor.
• JL1 – is provided to select either a white or RGB LED on LED0, LED1, and LED2 and on the LED
supply.
• JL2 – is provided to select either a white or RGB LED on LED3, LED4, and LED5 and on the LED
supply.
• JL3 – is provided to select either a white or RGB LED on LED6, LED7, and LED8 and on the LED
supply.
• VINSEL – is provided to select 3.3 V either from the MSP432 LaunchPad™ development kit or from an
external supply connected to JLED.
1.2 I
2
C Address Selection
The LP5569 I
2
C slave address is set according to the jumper installed on ADDR_SEL.
Figure 1. ADDR_SEL Configuration
1.3 LED Type and Supply Selection
The connectors JL1, JL2, and JL3 are used to select the LED type and supply rail.
Figure 2. JL1, JL2, JL3 Configuration