Introduction
2
SLVUAT7 – October 2016
Copyright © 2016, Texas Instruments Incorporated
TPS2553Q1EVM (HVL125A) Precision Current Limiting Switch User Guide
1
Introduction
The TPS2553Q1EVM is an evaluation module (EVM) for an automotive power-distribution switch with
adjustable current-limiting outputs provided by Texas Instruments. The EVM has an operating voltage
range of around 2.5 V to 6.5 V, and has four different output current limits, based on jumper placement on
the board. The output current limits range from 100 mA to 1500 mA. There is also onboard functionality for
manual setting of the enable pin or using a jumper solution for using the auto-retry feature of the device.
The provided test points give the user access to multiple ground points and all critical node voltages.
The PCB top-side accepts a power distribution switch in a SOT23-6 package. This switch has an enable
input, a fault output for overcurrent or reverse voltage conditions, and overtemperature shutdown.
Figure 1. TPS2553Q1EVM Board
1.1
Related Documentation
•
TPS2553-Q1 Precision Adjustable Current-Limited Power-Distribution Switches
datasheet,
1.2
TPS2553-Q1 Applications
•
Automotive ECU Supply Rail Power Distribution and Switching
•
Precision Current Limiting
•
USB Ports and Hubs
