描述 Description

The TPS2300 and TPS2301 are dual-channel hot-swap controllers that use external N-channel MOSFETs as high-side switches in power applications. Features of these devices, such as overcurrent protection (OCP), inrush current control, output-power status reporting, and the ability to discriminate between load transients and faults, are critical requirements for hot-swap applications. The TPS2300/01 devices incorporate undervoltage lockout (UVLO) and power-good (PG) reporting to ensure the device is off at start-up and confirm the status of the output voltage rails during operation. Each internal charge pump, capable of driving multiple MOSFETs, provides enough gate-drive voltage to fully enhance the N-channel MOSFETs. The charge pumps control both the rise times and fall times (dv/dt) of the MOSFETs, reducing power transients during power up/down. The circuit-breaker functionality combines the ability to sense overcurrent conditions with a timer function; this allows designs such as DSPs, that may have high peak currents during power-state transitions, to disregard transients for a programmable period.

特性 Features

? Dual-Channel High-Side MOSFET Drivers
? IN1: 3 V to 13 V; IN2: 3 V to 5.5 V
? Output dV/dt Control Limits Inrush Current
? Circuit-Breaker With Programmable Overcurrent Threshold and Transient Timer
? Power-Good Reporting With Transient Filter
? CMOS- and TTL-Compatible Enable Input
? Low, 5-μA Standby Supply Current? (Max)
? Available in 20-Pin TSSOP Package
? 40°C to 85°C Ambient Temperature Range
? Electrostatic Discharge Protection