OBTS949 Datasheet, PDF (9/11 Pages) Siemens Semiconductor Group – Smart Lowside Power Switch

Application examples:
Current Sense Features and Status
Signals
IN
D
µC
HITFET
CC
S
Vbb
VCC
RCC
IN
open
Vcc
load
thermal
Vcc
shutdown
reached triptemperature
The accuray of Vcc is at each
temperature about ±10 %
Status signal of thermal shutdown by
monitoring input current
RSt
IN
D
µC
VIN
HITFET
CC
S
Vbb
VIN
∆V = R_ST *I_IN(3)
∆V
thermal shutdown
Semiconductor Group
Page 9
BTS 949
14.07.1998