Datasheet

SLUU150 – February 2003
4
Evaluation Modules for Simple –48-V Hot Swap Controllers
Evaluation Modules for Simple –48-V Hot Swap Controllers
Systems Powe
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Contents
1 Introduction 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 The Simple –48-V Hot Swap Controller EVM 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Getting Started 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Using the Evaluation Modules to Evaluate the TPS2390 and TPS2391 12. . . . . . . . . . . . . . . . . .
1 Introduction
This User’s Guide describes the use and features of the simple –48-V hot swap evaluation
module (EVM). This EVM can be used to learn about the TPS2390 and TPS2391 hot swap
controller integrated circuits (ICs) from Texas Instruments (TI). The TPS2390 and TPS2391 are
negative voltage hot swap controllers intended for use in systems needing to hot swap telecom
distribution-level voltages. They integrate inrush current control, peak current limiting, electronic
circuit breaker, enable input, and current fault indication. The EVM is a PCB-based tool featuring
either device, and can be used to evaluate device operation in simulated live insertion events.
1.1 Features
The following list highlights some of the features of the TPS2390 and TPS2391.
• Wide input supply range of –36 V to –80 V
• Transient rating to –100 V
• Programmable current limit
• Programmable current slew rate
• Enable input (EN)
• Fault timer to eliminate nuisance trips
• Open-drain fault output (FAULT)
• 8-pin MSOP package