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TPS2045B, TPS2055B

TPS2046B, TPS2047B

SLVS532C – JULY 2004 – REVISED OCTOBER 2007

ELECTRICAL CHARACTERISTICS (continued)

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

SUPPLY CURRENT (TPS2047B)

TJ = 25°C

0.5

2

Supply current, low-level output

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

μA

–40

°C ≤ T

J ≤ 125°C

0.5

10

TJ = 25°C

65

90

Supply current, high-level output

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

μA

–40

°C ≤ T

J ≤ 125°C

65

110

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, INx = ground

(3)

TJ = 25°C

0.2

μA

UNDERVOLTAGE LOCKOUT

Low-level input voltage, IN, INx

2

2.5

V

Hysteresis, IN, INx

TJ = 25°C

75

mV

OVERCURRENT OC and OCx

Output low voltage, VOL(/OCx)

IO(/OCx) = 5 mA

0.4

V

Off-state current(3)

VO(/OCx) = 5 V or 3.3 V

1

μA

OC deglitch(3)

OCx assertion or deassertion

4

8

15

ms

THERMAL SHUTDOWN(4)

Thermal shutdown threshold(3)

135

°C

Recovery from thermal shutdown(3)

125

°C

Hysteresis(3)

10

°C

(3)

Not tested in production, specified by design.

(4)

The thermal shutdown only reacts under overcurrent conditions.

4

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