TPS40000, TPS40001

TPS40002, TPS40003

TPS40004, TPS40005

SLUS507C − JANUARY 2002 − REVISED JUNE 2004

4

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ELECTRICAL CHARACTERISTICS

power dissipation (unless otherwise noted)

current limit

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ISINK

ILIM sink current

VDD = 5 V

11

15

19

A

ISINK

ILIM sink current

VDD = 2.25 V

9.5

13.0

16.5

µA

VOS

Offset voltage SW vs ILIM(1)

2.25 V

≤ VDD ≤ 5.00

−20

0

20

mV

VILIM

Input voltage range

2

VDD

V

tON

Minimum HDRV pulse time in overcurrent

VDD = 3.3 V

200

300

ns

SW leading edge blanking pulse in over-

current detection

100

ns

tSS

Soft-start capacitor cycles as fault timer(1)

6

rectifier zero current comparator

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VSW

Sense voltage to turn off

rectifier

TPS40000

TPS40002

LDRV output OFF

−15

−7

−2

mV

SW leading edge blanking pulse in zero

current detection

75

ns

predictive delay

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VSWP

Sense threshold to modulate delay time

−350

mV

TLDHD

Maximum delay modulation range time

LDRV OFF − to − HDRV ON

50

75

100

ns

Predictive counter delay time per bit

LDRV OFF − to − HDRV ON

3.0

4.5

6.2

ns

THDLD

Maximum delay modulation range

HDRV OFF − to − LDRV ON

40

65

90

ns

Predictive counter delay time per bit

HDRV OFF − to − LDRV ON

2.4

4.0

5.6

ns

shutdown

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VSD

Shutdown threshold voltage

Outputs OFF

0.09

0.13

0.18

V

VEN

Device active threshold voltage

0.14

0.17

0.21

V

soft start

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ISS

Soft-start source current

Outputs OFF

2.0

3.7

5.4

µA

VSS

Soft-start clamp voltage

1.1

1.5

1.9

V

bootstrap

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

RBOOT Bootstrap switch resistance

VDD = 3.3 V

50

100

Ω

RBOOT Bootstrap switch resistance

VDD = 5 V

35

70

Ω

(1)

Ensured by design. Not production tested.

(2)

At VDD input voltage of 2.25 V, derate the maximum duty cycle by 3%.