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ST890BD View Datasheet(PDF) - STMicroelectronics

Part Name
Description
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ST890BD Datasheet PDF : 7 Pages
1 2 3 4 5 6 7
ST890
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter²
Value
Unit
VI
Supply Voltage
-0.5 to 6
V
VON, Power DMOS Drain to Source Voltage
VFAULT
-0.5 to 6
V
VSET, VO Logic Input Voltage
-0.5 to (VIN + 0.5)
V
IDS
Maximum Continuous Switching Current
1.5
A
Tstg
Storage Temperature Range
-65 to +150
°C
Top
Operating Junction Temperature Range (C series)
(B series)
0 to +70
°C
-40 to +85
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
THERMAL DATA
Symbol
Parameter
Rthj-amb Thermal Resistance Junction-ambient (*)
(*) This value depends from thermal design of PCB on which the device is mounted.
SO-8
160
Unit
°C/W
TRUTH TABLE FOR ON/OFF SWICH
CONNECTION DIAGRAM (top view)
ON/OFF
L
H
OUT
ON
OFF
FAULT
H
L
FLAG
Normal Operation
Fault Condition
PIN DESCRIPTION
Pin N°
1, 2
3
4
5
Symbol
IN
ON
GND
SET
6, 7
OUT
8
FAULT
Name and Function
Input P-Channel MOSFET source. Bypass IN with a 1µF capacitor to ground.
Active Low Switch On Input. A logic low turns the switch ON
Ground
Set Current Limit Input. A resistor from SET to GROUND sets the current limit for
the switch. RSET=1.38x103/ILIM, where ILIM is the desired currnet limit in Amperes
Switch Output. P-Channel MOSFET drain. Bypass OUT with a 0.1mF capacitor to
GROUND.
Fault Indicator Output. This open drain output goes low when in current limit or
when the die temperature exceeds 135°C
2/7
 

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