ST890

2/7

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is

not implied.

THERMAL DATA

(*) This value depends from thermal design of PCB on which the device is mounted.

TRUTH TABLE FOR ON/OFF SWICH

CONNECTION DIAGRAM (top view)

PIN DESCRIPTION

Symbol

Parameter²

Value

Unit

Supply Voltage

-0.5 to 6

V

Power DMOS Drain to Source Voltage

-0.5 to 6

V

Logic Input Voltage

V

Maximum Continuous Switching Current

1.5

A

Storage Temperature Range

-65 to +150

°C

Operating Junction Temperature Range (C series)

(B series)

0to +70

-40 to +85

°C

°C

Symbol

Parameter

SO-8

Unit

Thermal Resistance Junction-ambient (*)

160

°C/W

ON/OFF

OUT

LON

H

OFF

FAULT

FLAG

H

Normal Operation

L

Fault Condition

Pin N°

Symbol

Name and Function

1, 2

IN

Input P-Channel MOSFET source. Bypass IN with a 1

µF capacitor to ground.

3ON

Active Low Switch On Input. A logic low turns the switch ON

4

GND

Ground

5

SET

Set Current Limit Input. A resistor from SET to GROUND sets the current limit for

6, 7

OUT

Switch Output. P-Channel MOSFET drain. Bypass OUT with a 0.1mF capacitor to

GROUND.

8FAULT

Fault Indicator Output. This open drain output goes low when in current limit or

when the die temperature exceeds 135°C