4

Electrical characteristics

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

Operating input voltage range

10.5

18

V

Under/overvoltage protection

Undervoltage lockout

8.1

V

UVLO hysteresis

2.2

V

Power MOSFET

ON-resistance

Note:

Pulsed test.

50

70

mΩ

Power limit circuit

ΔP

Power limit accuracy

±3

%

-7.5

+7.5

P

Power limit range

10

16

W

Enable

Low level input voltage

Output disabled

0.8

V

High level input voltage

Output enabled

2

V

Enable pin current

0.1

1

µA

PWM input logic

Low level input voltage

Turn-off

0.8

V

High level input voltage

Turn-on

2

V

PWM pin current

0.1

1

µA

PWM signal frequency

2

kHz

D

PWM signal duty cycle

20

100

%

Auto-retry circuit

During fault condition

0.16

µA

Power limit masking circuit

Masking time in PWM mode

45

µs

Total device

Bias current

4

mA

Shutdown mode

40

100

µA

Thermal shutdown

TSD

Shutdown temperature

(2)

160

°C

Hysteresis

15

1. Values over the temperature range are guaranteed by design/correlation and tested in production only at ambient

temperature.

2. Guaranteed by design, but not tested in production.

STPW12

Electrical characteristics

DS12478 - Rev 1

page 6/23