TPS22941 datasheet(5/19 Pages) TI

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TPS22941, TPS22942, TPS22943, TPS22944, TPS22945

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SLVS832C – NOVEMBER 2008 – REVISED NOVEMBER 2009

ELECTRICAL CHARACTERISTICS (continued)

VIN = 1.62 V to 5.5 V, TA = –40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN TYP(1) MAX

UNIT

UVLO

Undervoltage shutdown

VIN increasing

Full

1.32

1.42

1.52

Undervoltage shutdown

Full

hysteresis

Control Output (OC)

VIN = 5 V, ISINK = 10 mA

0.1

0.2

OC output logic low

Vol

Full

voltage

VIN = 1.8 V, ISINK = 10 mA

0.1

0.3

OC output high leakage

Ioz

VIN = 5 V, Switch ON

Full

0.5

μA

current voltage

Control Input (ON)

VIN = 1.8 V

Full

1.1

VIN = 2.5 V

Full

1.3

ON high-level input

Vih

voltage

VIN = 3.3 V

Full

1.4

VIN = 5.5 V

Full

1.7

VIN = 1.8 V

Full

0.5

VIN = 2.5 V

Full

0.7

Vil

ON low-level input voltage

VIN = 3.3 V

Full

0.8

VIN = 5.5 V

Full

0.9

ON high-level input

VIN = 1.8 V to 5 V, Switch ON

Full

μA

leakage current

SWITCHING CHARACTERISTICS

VIN = 3.3 V, RL = 500 Ω, CL = 0.1 μF, TA = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tON

Turn-ON time

RL = 500 Ω,

CL = 0.1 μF

μs

tOFF

Turn-OFF time

RL = 500 Ω,

CL = 0.1 μF

μs

VOUT rise time

RL = 500 Ω,

CL = 0.1 μF

μs

VOUT fall time

RL = 500 Ω,

CL = 0.1 μF

μs

tBLANK

Over current blanking time

TPS22941/2/5

tRSTART

Auto-restart time

TPS22941/2/5

160

VIN = VON = 3.3 V, moderate overcurrent condition

μs

Short-circuit response time

VIN = VON = 3.3 V, hard short

μs

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