TPS2145IPWPR datasheet(4/34 Pages) TI

4 / 34 page

TPS2145, TPS2147

TPS2155, TPS2157

SLVS333 − AUGUST 2001

www.ti.com

electrical characteristics over recommended operating junction-temperature range,

2.9 V

≤ VI(VIN/SWIN1) ≤ 5.5 V, 2.9 V ≤ VI(SWIN2) ≤ 5.5 V, VI(ENx) = 0 V or VI(ENx) = 5 V,

VI(LDO_EN) = 5 V, TJ = −40°C to 100°C (unless otherwise noted)

power switches

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

rDS(on)

Static drain-source on-state resistance,

TJ = −40°C to 100°C,

IO(LDO_OUT) = 200 mA,

IOUT1 and IOUT2 = 150 mA

580

Ω

rDS(on)

Static drain-source on-state resistance,

VIN/SWIN1 or SWIN2 to OUTx

TJ = 25°C,

IO(LDO_OUT) = 200 mA,

IOUT1 and IOUT2 = 150 mA

340

Ω

VI(ENx) = 5 V,

VI(ENx) = 0 V,

SWIN2 floating,

VI(VIN/SWIN1) = 5 V

Ilkg(R)

Reverse leakage current at OUTx

VO(OUTx) = 5 V,

LDO_EN = don’t care

VI(ENx) = 5 V,

VI(ENx) = 0 V,

VI(SWIN2) = 0,

VI(VIN/SWIN1) = 2.9 V

µA

VI(ENx) = 5 V,

VI(ENx) = 0 V,

VI(SWIN2) = 0,

VI(VIN/SWIN1) = 0 V

IOS

Short circuit output current

OUTx connected to GND, device enabled into short

circuit

0.2

0.4

Delay time for asserting OC flag

From IOUTx at 95% of current limit level to 50% OC

5.5

Delay time for deasserting OC flag

From IOUTx at 95% of current limit level to 50% OC

10.5

timing parameters, power switches

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ton

Turnon time, OUTx switch, (see Note 1)

CL = 100 µF

RL = 33 Ω

0.5

ton

Turnon time, OUTx switch, (see Note 1)

CL = 1 µF

RL = 33 Ω

0.1

toff

Turnoff time, OUTx switch (see Note 1)

CL = 100 µF

RL = 33 Ω

5.5

toff

Turnoff time, OUTx switch (see Note 1)

CL = 1 µF

RL = 33 Ω

0.05

Rise time, OUTx switch (see Note 1)

CL = 100 µF

RL = 33 Ω

0.5

Rise time, OUTx switch (see Note 1)

CL = 1 µF

RL = 33 Ω

0.1

Fall time, OUTx switch (see Note 1)

CL = 100 µF

RL = 33 Ω

5.5

Fall time, OUTx switch (see Note 1)

CL = 1 µF

RL = 33 Ω

0.05

1.2

NOTE 1. Specified by design, not tested in production.

undervoltage lockout at VIN/SWIN1

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

UVLO Threshold

2.2

2.85

Hysteresis (see Note 1)

260

Deglitch (see Note 1)

µs

NOTE 1. Specified by design, not tested in production.

TPS2145IPWPR Datasheet(PDF) 4 Page - Texas Instruments

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