The TPS48111Q1EVM allows reference circuit evaluation of TI's smart high-side driver TPS48111-Q1. The TPS48111-Q1 has an operating range of 3.5 V–80 V and has strong gate drive strength of 4 A to enable switching parallel MOSFETs in high current designs. The controller TPS48111-Q1 can drive back-to-back N-channel MOSFETs and also has a separate pre-charge driver (G) with independent control input (INP_G) to drive large capacitive loads. The device provides two-level adjustable overcurrent protection with adjustable circuit breaker timer, fast short-circuit protection, accurate analog current monitor output, and remote overtemperature protection.

General TPS48111Q1EVM features include:

• 24-V to 60-V (typical) operation

• 5-A to 50-A adjustable overcurrent protection using on-board jumpers

• Programmable circuit breaker timer

• Bi-directional current flow capability

• Load current monitoring output

• Programmable auto-retry and latch options

• LED status indication for overcurrent and overtemperature faults

This EVM can be used for the following applications:

• Circuit breaker and safety disconnect switch

• Power distribution unit

• e-relay

• HVAC compressor module

The TPS48111Q1EVM evaluation board enables evaluation of TPS48111-Q1 driver from TPS4811x-Q1 family. The input power is applied between connectors T1 and T4 while T2 and T3 provide an output connection to the load, Refer to the schematic in Figure 3-1 and EVM test setup in Figure 5-1.

D4 and D5 provide the fault indication output for the overcurrent and overtemperature faults respectively. Scaled current of the load can be monitored at TP10.