Texas Instruments TPS2474x 高性能热插拔和& ORing 控制器

德州仪器 TPS2474x &是一款针对 2.5V 至 18V 系统的集成式高性能 ORing 和热插拔控制器。该控制器具有精确且可编程的保护设置，对设计故障隔离要求较高的高功率、高可用性系统很有帮助。该控制器还具有可编程电流限制、快速关断和故障定时器功能，可在热短路等故障期间保护负载和电源。可调整快速关断阈值和响应时间，以确保快速响应实际故障，同时避免误跳变。两个独立定时器（浪涌/故障）使用户可根据系统需求定制保护功能。这些器件的典型应用有企业级存储、电源多路复用、冗余电源和备用电源。

特性

2.5V to 18V Bus operation (30V abs max)
Programmable protection settings
- Current limit: ±5% at 10mV
- Fast trip: ±10% at 20mV
Reverse voltage: ±1mV at -1-mV
Programmable response time for fast trip and reverse voltage
Programmable FET SOA protection
Dual timer (inrush/fault)
Interchangeable hot swap and ORing

Analog current monitor (1% at 25mV)
Status flags for faults and power good
UV and OV protection
Independent EN for hot swap and ORing
4mm × 4mm 24-pin QFN
Fault response
- TPS24740 = Latch
- TPS24741 = Retry
- TPS24742 = Fast latch off

应用

Enterprise storage
Power muxing

Redundant power supplies
Battery back up

Associated Development Tools

Texas Instruments TPS24740EVM-596 & TPS24742EVM-667 Evaluation Modules (EVM) are each a fully assembled and tested circuit for evaluating the TPS2474x 2.5V to 18V Positive Voltage Hot-Swap and ORing controller. These evaluation modules are designed for ORing to multiple hot-swapped loads and contains header connectors for easy connection to external test and application circuitry.

TPS24740EVM-596 User's Guide

TPS24742EVM-667 User's Guide