42

PŸ

IN

OUT

GND

TPS25940-Q1

ILIM

IMON

*

5 V Power Bus

EN/UVLO

OVP

IN

dVdT

OUT

DEVSLP

USB Connector

FLT

VBUS

D-

D+

GND

PGTH

PGOOD

Copyright © 2016, Texas Instruments Incorporated

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

TPS25940-Q1

SLVSDJ0A – MAY 2016 – REVISED JUNE 2016

TPS25940-Q1 2.7-V to 18-V eFuse with Integrated Short-to-Battery Protection

1

1 Features

1

•

AEC-Q100 Qualified with:

–

Temperature Grade 1: –40°C to +125°C

Ambient Operating Temperature Range

–

Device HBM ESD Classification Level 2

–

Device CDM ESD Classification Level C5

•

2.7-V to 18-V Operating Voltage, 20 V (Maximum)

•

•

0.6-A to 5.3-A Adjustable Current Limit (±8%)

•

IMON Current Indicator Output (±8%)

•

Adjustable Under-, Overvoltage Threshold (±2%)

•

Reverse Current Blocking

•

1-

μs Reverse Voltage Shutoff

•

•

Power Good and Fault Outputs

•

Short-to-Battery Protection

•

Short-to-Ground Protection

2 Applications

•

USB Hubs

•

Holdup Power Management

•

Automotive Infotainment

•

ADAS Cameras and Radar Sensors

3 Description

The

TPS25940-Q1

eFuse

Power

Switch

is

a

compact, feature rich power management device with

a full suite of protection functions. The wide operating

range allows control of many popular DC bus

voltages.

Integrated

back-to-back

FETs

provide

bidirectional current control making the device well

suited for systems with load side holdup energy that

must not drain back to a failed supply bus.

Load, source and device protection are provided with

many programmable features including overcurrent,

ramp

and

overvoltage,

undervoltage

thresholds.

For

system

status

monitoring

and

downstream

load

control,

the

device

provides

PGOOD, FLT and precise current monitor output.

Precise

programmable

undervoltage,

overvoltage

thresholds and mode simplify power management

design.

protection from over-voltages during output short to

battery faults.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS25940-Q1

WQFN (20)

3.00 mm x 4.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Figure 1.

Simplified Schematic

Figure 2.

Output Short-to-Battery Detection and Protection