TPS2556 datasheet(4/23 Pages) TI1

Part #	TPS2556

Description	PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES

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TPS2556

TPS2557

SLVS931A

– NOVEMBER 2009 – REVISED FEBRUARY 2012

www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

over recommended operating conditions, V/EN = 0 V, or VEN = VIN (unless otherwise noted)

PARAMETER

TEST CONDITIONS(1)

MIN

TYP

MAX

UNIT

SUPPLY CURRENT

IIN_off

Supply current, low-level output

VIN = 6.5 V, No load on OUT, V EN = 6.5 V or VEN = 0 V

0.1

2.0

μA

RILIM = 24.9 kΩ

95

120

μA

IIN_on

Supply current, high-level output

VIN = 6.5 V, No load on OUT

RILIM = 100 kΩ

85

110

μA

IREV

Reverse leakage current

VOUT = 6.5 V, VIN = 0 V

TJ = 25 °C

0.01

1

μA

UNDERVOLTAGE LOCKOUT

UVLO

Low-level input voltage, IN

VIN rising

2.35

2.45

V

Hysteresis, IN

35(3)

mV

FAULT FLAG

VOL

Output low voltage, FAULT

I/FAULT = 1 mA

180

mV

Off-state leakage

V/FAULT = 6.5 V

1

μA

FAULT deglitch

FAULT assertion or de-assertion due to overcurrent condition

6

9

13

ms

THERMAL SHUTDOWN

OTSD2

Thermal shutdown threshold

155

°C

Thermal shutdown threshold in

OTSD

135

°C

current-limit

Hysteresis

20(3)

°C

(3)

These parameters are provided for reference only, and do no constitute part of TI

's published specifications for purposes of TI's product

warranty.

4

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