TPS2340A

SLUS528A – MARCH 2002 – REVISED AUGUST 2002

3

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electrical characteristics over recommended operating temperature range, P12VINA = P12VINB =

12 V, V5IN = 5 V, DIGVCC = 3.3 V, M12VINA = M12VINB = –12 V, 3VAUXI = 3.3 V, all outputs unloaded,

12-V Supply

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

+12-V Internal NMOS on-resistance

PWREN = HIGH,

ID = 0.5 A

TA = TJ = 25°C

0.18

0.3

Ω

+12 V Internal NMOS on resistance

PWREN = HIGH,

ID = 0.5 A

0.4

Ω

–12-V Internal NMOS on-resistance

PWREN = HIGH,

ID = 0.1 A

TA = TJ = 25°C

0.5

0.75

Ω

12 V Internal NMOS on resistance

PWREN = HIGH,

ID = 0.1 A

0.9

Ω

+12-V overcurrent threshold

ROCSET = 6.04 kΩ

0.83

1.00

1.17

A

–12-V overcurrent threshold

ROCSET = 6.04 kΩ

0.12

0.19

0.25

A

P12VOA, P12VOB fault threshold voltage

After P12VG and 5V3VG good

9.50

10.80

11.15

V

P12VOA, P12VOB voltage fault minimum captured

pulse time

75

135

ns

M12VGA, M12VGB gate charge current

–25

–20

–14.5

µA

M12VGA, M12VGB gate discharge current

200

mA

P12VGA, P12VGB, charge current

Derived from charge pump

1.0

4.0

8.5

µA

P12VGA, P12VGB, discharge current

100

mA

P12VGA, P12VGB good threshold

P12VIN = 12 V

19

20.5

22

V

T rn on time

PWREN = HIGH to M12VO = –10.4 V,

CM12VG = 0.022 µF,

RL = 120 Ω

CM12VO = 50 µF

15

20

ms

Turn-on time

PWREN = HIGH to P12VO = 11.4 V,

C12PVG = 0.022 µF,

RL = 24 Ω

CP12VO = 200 µF

60

75

ms

Turn off time

PWREN = LOW to P12VO = 0.6 V,

CP12VG = 0.022

µF

1.5

3.5

µs

Turn-off time

PWREN = LOW to M12VO = –0.6 V,

CM12VG = 0.022

µF

1.5

3.5

µs

M12VO bleed current

–20

–5

mA

P12VO bleed current

5

10

mA

input/output control

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

P12VIN supply current

P12VIN = 12 V

1

2

mA

V5IN supply current

V5IN = 5 V

1.00

2.75

mA

DIGVCC supply current

DIGVCC = 3.3 V

500

2000

M12VIN supply current

M12VIN –12 V

250

2000

µA

3VAUXI supply current

3VAUXI = 3.3 V

200

2000

µA

Overcurrent fault response time

500

960

ns

DIGVCC start-up threshold voltage

2.60

2.80

2.95

DIGVCC stop threshold voltage

2.40

2.55

2.80

V5IN start-up threshold voltage

4.2

4.4

4.6

V

V5IN stop threshold voltage

3.8

4.0

4.4

V

P12VIN start-up threshold voltage

10.2

10.3

11.2

P12VIN stop threshold voltage

9.5

9.4

10.6