TPS2830, TPS2831

FAST SYNCHRONOUSBUCK MOSFET DRIVERS

WITH DEADTIME CONTROL

SLVS196C − JANUARY1999 − REVISED JANUARY 2001

6

POST OFFICE BOX 655303

electrical characteristics over recommended operating virtual junction temperature range,

dead-time control

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIH

High-level input voltage

LOWDR

Over the VCC range (see Note 3)

0.7VCC

V

VIL

Low-level input voltage

LOWDR

Over the VCC range (see Note 3)

1

V

VIH

High-level input voltage

DT

Over the VCC range

0.7VCC

V

VIL

Low-level input voltage

DT

Over the VCC range

1

V

NOTE 3: Ensured by design, not production tested.

digital control terminals (IN, CROWBAR, ENABLE, SYNC)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIH

High-level input voltage

Over the VCC range

0.7VCC

V

VIL

Low-level input voltage

Over the VCC range

1

V

switching characteristics over recommended operating virtual junction temperature range,

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VBOOT = 4.5 V,

VBOOTLO = 0 V

60

HIGHDR output (see Note 3)

VBOOT = 6.5 V,

VBOOTLO = 0 V

50

ns

Rise time

HIGHDR output (see Note 3)

VBOOT = 12 V,

VBOOTLO = 0 V

50

ns

Rise time

VCC = 4.5 V

40

LOWDR output (see Note 3)

VCC = 6.5 V

30

ns

LOWDR output (see Note 3)

VCC = 12 V

30

ns

VBOOT = 4.5 V,

VBOOTLO = 0 V

60

HIGHDR output (see Note 3)

VBOOT = 6.5 V,

VBOOTLO = 0 V

50

ns

Fall time

HIGHDR output (see Note 3)

VBOOT = 12 V,

VBOOTLO = 0 V

50

ns

Fall time

VCC = 4.5 V

40

LOWDR output (see Note 3)

VCC = 6.5 V

30

ns

LOWDR output (see Note 3)

VCC = 12 V

30

ns

HIGHDR going low

VBOOT = 4.5 V,

VBOOTLO = 0 V

130

HIGHDR going low

(excluding dead time) (see Note 3)

VBOOT = 6.5 V,

VBOOTLO = 0 V

100

ns

Propagation delay time

(excluding dead time) (see Note 3)

VBOOT = 12 V,

VBOOTLO = 0 V

75

ns

Propagation delay time

LOWDR going high

VBOOT = 4.5 V,

VBOOTLO = 0 V

80

LOWDR going high

(excluding dead time) (see Note 3)

VBOOT = 6.5 V,

VBOOTLO = 0 V

70

ns

(excluding dead time) (see Note 3)

VBOOT = 12 V,

VBOOTLO = 0 V

60

ns

LOWDR going low

VCC = 4.5 V

80

Propagation delay time

LOWDR going low

(excluding dead time) (see Note 3)

VCC = 6.5 V

70

ns

Propagation delay time

(excluding dead time) (see Note 3)

VCC = 12 V

60

ns

DT to LOWDR and

VCC = 4.5 V

40

170

Driver nonoverlap time

DT to LOWDR and

LOWDR to HIGHDR (see Note 3)

VCC = 6.5 V

25

135

ns

Driver nonoverlap time

LOWDR to HIGHDR (see Note 3)

VCC = 12 V

15

85

ns

NOTE 3: Ensured by design, not production tested.