ELECTRICAL CHARACTERISTICS

TIMING REQUIREMENTS

TPS22951

over operating –40°C

PARAMETER

MIN

TYP

MAX

UNIT

Power Switch

Static drain-source on-state

1

Ω

resistance, 3-V operation

41

(2)

Rise time, output

µs

6

43

(2)

Fall time, output

µs

43

Leakage current

1

µA

EN and DET

High-level input voltage

2.8 V

1.35

V

Low-level input voltage

2.8 V

0.45

V

Input current

1

µA

Turn-on time (EN to PWR)

42

(2)

µs

Turn-on time (EN to POK)

9.5

Turn-off time (EN to PWR)

48

(2)

µs

Turn-off time (EN to POK)

47

Current Limit

Short-circuit output current

–0.3

–0.6

A

Device enabled into short circuit

Supply Current

Supply current, enabled

100

µA

Supply current, disabled

10

µA

POK

Power OK output low voltage

0.4

V

Off-state current

1

µA

Thermal Shutdown

135

°C

Recovery from thermal

125

°C

25

°C

(1)

Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account

separately.

(2)

Not tested in production, specified by design

over operating free-air temperature range (unless otherwise noted)

MIN

MAX

UNIT

Setup time, DET low before EN high

2

µs

4

Submit Documentation Feedback

Copyright © 2009, Texas Instruments Incorporated

Product Folder Link(s): TPS22951