TPS2838, TPS2839

TPS2848, TPS2849

SLVS367A – MARCH 2001 – REVISED JUNE 2001

9

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electrical characteristics over recommended operating virtual junction temperature range,

digital control (IN, ENABLE, SYNC)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

V

High level input voltage

IN

Over full VCC range

2

V

VIH

High-level input voltage

ENABLE, SYNC

Over full VCC range

2.2

V

V

Low level input voltage

IN

Over full VCC range

1

V

VIL

Low-level input voltage

ENABLE, SYNC

Over full VCC range

1

V

ENABLE propagation delay time

See Note 2

2

7

µs

NOTE 2: Ensured by design, not production tested.

thermal shutdown

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Thermal shutdown

See Note 2

155

170

185

_C

td

Falling edge delay time

See Note 2

10

20

µs

NOTE 2: Ensured by design, not production tested.

drive regulator

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Recommended output voltage

4

14

V

VO

Output voltage

VCC = 10 V to 15 V,

IO = 5 mA to 150 mA

–2

2

%nom

Vref

Reference voltage

VCC = 10 V to 15 V

1.235

V

Dropout voltage

VCC = 10 V,

IO = 150 mA

See Note 2

1000

1100

mV

Line regulation

VCC = 10 V to 15 V,

IO = 5 mA

0.2

%/V

Load regulation

VCC = 10 V,

IO = 5 mA to 150 mA

2

%

Current limit

VCC = 8 V

0.5

0.6

A

PWRRDY saturation voltage

IO = 5 mA

0.8

V

Ilkg

Leakage current

VI(PWRRDY) = 4.5 V

1

µA

drive regulator undervoltage lockout

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Start threshold voltage

See Note 2

85

%Vref

Stop threshold voltage

See Note 2

80

%Vref

Vhys

Hysteresis voltage

See Note 2

2.5

5

%Vref

tpd

Propagation delay time

50-mV overdrive,

See Note 2

300

1000

ns

Falling-edge delay time

See Note 2

2

5

µs

Power on reset time

See Note 2

100

1000

µs

NOTE 2: Ensured by design, not production tested.