TPS2085 datasheet(3/37 Pages) TI

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RECOMMENDED OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS

TPS2041B,, TPS2042B

TPS2043B, TPS2044B, TPS2051B

TPS2052B, TPS2053B, TPS2054B

SLVS514E – APRIL 2004 – REVISED JANUARY 2006

MIN

MAX

UNIT

Input voltage, VI(IN), VI(INx)

2.7

5.5

Input voltage, VI(EN), VI(ENx), VI(EN), VI(ENx)

5.5

Continuous output current, IO(OUT), IO(OUTx)

500

Operating virtual junction temperature, TJ

-40

125

°C

over recommended operating junction temperature range, V

I(IN) = 5.5 V, IO = 0.5 A, VI(/ENx) = 0 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS(1)

MIN

TYP MAX

UNIT

POWER SWITCH

Static drain-source on-state

resistance, 5-V operation

VI(IN) = 5 V or 3.3 V,

IO = 0.5 A

-40°C

≤ T

J ≤ 125°C

135

Ω

and 3.3-V operation

rDS(on)

Static drain-source on-state

resistance, 2.7-V

VI(IN) = 2.7 V,

IO = 0.5 A

-40°C

≤ T

J ≤ 125°C

150

Ω

operation(2)

VI(IN) = 5.5 V

0.6

1.5

tr(2)

Rise time, output

VI(IN) = 2.7 V

0.4

CL = 1 µF,

TJ = 25°C

RL = 10 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 EN AND ENx

VIH

High-level input voltage

2.7 V

≤ V

I(IN) ≤ 5.5 V

VIL

Low-level input voltage

2.7 V

≤ V

I(IN) ≤ 5.5 V

0.8

Input current

VI(ENx) = 0 V or 5.5 V

-0.5

0.5

µA

ton(2)

Turnon time

CL = 100 µF, RL = 10 Ω

toff(2)

Turnoff time

CL = 100 µF, RL = 10 Ω

CURRENT LIMIT

TJ = 25°C

0.75

1.25

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

IOS

Short-circuit output current

device enabled into short-circuit

-40°C

≤ T

J ≤ 125°C

0.7

1.3

SUPPLY CURRENT (TPS2041B, TPS2051B)

TJ = 25°C

0.5

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

TJ = 25°C

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

OUT connected to ground, VI(ENx) = 5.5 V,

Leakage current

-40°C

≤ T

J ≤ 125°C

µA

or VI(ENx) = 0 V

Reverse leakage current

VI(OUTx) = 5.5 V, IN = ground(2)

TJ = 25°C

µA

SUPPLY CURRENT (TPS2042B, TPS2052B)

TJ = 25°C

0.5

Supply current, low-level output

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

µA

-40°C

≤ T

J ≤ 125°C

0.5

TJ = 25°C

Supply current, high-level output

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

µA

-40°C

≤ T

J ≤ 125°C

Leakage current

OUT connected to ground, VI(ENx) = 5.5 V

-40°C

≤ T

J ≤ 125°C

µA

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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