TPS22811LRPW集成電路（IC）的配電開關(guān)負(fù)載驅(qū)動器規(guī)格書PDF中文資料

1 Features

? Wide operating input voltage range: 2.7 V to 16 V

– 20-V absolute maximum

? Integrated FET with low On-resistance: RON = 6

mΩ (typ.)

? Adjustable output slew rate control (dVdt)

? Active high enable input with adjustable

undervoltage lockout threshold (UVLO)

? Active low enable input with adjustable

undervoltage lockout threshold (OVLO)

? Fast overvoltage protection

– Adjustable overvoltage lockout (OVLO) with

1.2-μs (typ.) response time

? Analog load current monitor output (IMON)

– ? ±10 accuracy for IOUT > 2 A

? Fast-trip response for short-circuit protection

– 640-ns (typ.) response time

– Fixed threshold

? Overtemperature protection

? Power Good (PG) indication with adjustable

threshold (PGTH)

? Quick output discharge

? Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch

2 Applications

? Optical modules

? Server/PC motherboard/add-on cards

? Enterprise routers/data center switches

? Industrial PC

? UHDTV

3 Description

The TPS22811x is a highly integrated power

distribution solution in a small package. The device

allows control and monitoring of power supply rails

using minimum number of external components.

Output slew rate and inrush current can be adjusted

using a single external capacitor. Loads are protected

from input overvoltage conditions by cutting off the

output if input exceeds an adjustable overvoltage

threshold. The device integrates a fast-trip response

to provide protection against severe faults at the

output during steady-state.

The devices provide an accurate analog sense of

the output load current as well as a digital power

good indication to help with system monitoring and

diagnostics.

The devices are available in a 2-mm × 2-mm, 10-

pin HotRod? QFN package for improved thermal

performance and reduced system footprint.

The devices are characterized for operation over a

junction temperature range of –40°C to +125°C.