TPS2045B_14 datasheet(3/30 Pages) TI1

No de pièce	TPS2045B

Description	CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES

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Fabricant	TI1 [Texas Instruments]

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RECOMMENDED OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS

TPS2045B, TPS2055B

TPS2046B, TPS2047B

SLVS532C – JULY 2004 – REVISED OCTOBER 2007

MIN

MAX

UNIT

VI(IN), VI(INx)

Input voltage

2.7

5.5

V

VI(/ENx), VI(ENx)

Input voltage

0

5.5

V

IO(OUT), IO(OUTx)

Continuous output current

0

250

mA

TJ

Operating virtual junction temperature

-40

125

°C

over recommended operating junction temperature range, VI(IN) = 5.5 V, IO = 0.25 A, VI(ENx) = 0 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS(1)

MIN

TYP

MAX

UNIT

POWER SWITCH

Static drain-source on-state resistance,

VI(IN) = 5 V or 3.3 V, IO = 0.25 A

–40

°C ≤ T

J≤ 125°C

70

135

m

Ω

5-V operation and 3.3-V operation

rDS(on)

Static drain-source on-state resistance,

VI(IN) = 2.7 V,

IO = 0.25 A

–40

°C≤ T

J≤ 125°C

75

150

m

Ω

2.7-V operation(2)

VI(IN) = 5.5 V

0.6

1.5

tr

(2)

Rise time, output

VI(IN) = 2.7 V

0.4

1

CL = 1 μF,

TJ = 25°C

ms

RL = 20 Ω

VI(IN) = 5.5 V

0.05

0.5

tf

(2)

Fall time, output

VI(IN) = 2.7 V

0.05

0.5

ENABLE INPUT ENx

VIH

High-level input voltage

2.7 V

≤ VI(IN) ≤ 5.5 V

2

V

VIL

Low-level input voltage

2.7 V

≤ VI(IN) ≤ 5.5 V

0.8

II

Input current

VI(/ENx) = 0 V or 5.5 V

-0.5

0.5

μA

ton

(2)

Turnon time

CL = 100 μF, RL = 20 Ω

3

ms

toff

(2)

Turnoff time

CL = 100 μF, RL = 20 Ω

10

CURRENT LIMIT

VI(IN) = 5 V, OUT connected to GND, device enabled into

IOS

Short-circuit output current

0.3

0.5

0.7

A

short-circuit

SUPPLY CURRENT (TPS2045B, TPS2055B)

TJ = 25°C

0.5

1

No load on OUT, VI(/ENx) = 5.5 V

Supply current, low-level output

μA

or VI(/ENx) = 0 V

–40

°C ≤ T

J ≤ 125°C

0.5

5

TJ = 25°C

43

60

No load on OUT, VI(/ENx) = 0 V

Supply current, high-level output

μA

or VI(/ENx) = 5.5 V

–40

°C ≤ T

J ≤ 125°C

43

70

OUT connected to ground,

Leakage current

–40

°C ≤ T

J ≤ 125°C

1

μA

VI(/ENx) = 5.5 V, or VI(ENx) = 0 V

Reverse leakage current

VI(OUTx) = 5.5 V, IN = ground

(2)

TJ = 25°C

0

μA

SUPPLY CURRENT (TPS2046B)

TJ = 25°C

0.5

1

Supply current, low-level output

No load on OUT, VI(/ENx) = 5.5 V

μA

–40

°C ≤ T

J ≤ 125°C

0.5

5

TJ = 25°C

50

70

Supply current, high-level output

No load on OUT, VI(/ENx) = 0 V

μA

-40

°C ≤ T

J ≤ 125°C

50

90

OUT connected to ground,

Leakage current

-40

°C ≤ T

J ≤ 125°C

1

μA

VI(ENx) = 5.5 V

Reverse leakage current

VI(OUTx) = 5.5 V, IN = ground

(2)

TJ = 25°C

0.2

μA

(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.

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Product Folder Link(s): TPS2045B TPS2055B TPS2046B TPS2047B

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