Truth Table
Channel 1
Channel 2
Normal
operation
Open load
Short circuit
to GND
Short circuit
to Vbb
Overtem-
perature
Under-
voltage
Overvoltage
Input 1 Output 1 Status 1
Input 2 Output 2 Status 2
level
level
BTS 707
L
L
L
H
H
H
L
Z
H
H
H
H
L
L
L
H
L
L
L
H
H
H
H
H
L
L
L
H
L
L
L
L
L
H
L
L
no overvoltage shutdown,
see normal operation
BTS 707
Parallel switching of channel 1 and 2 is easily possible by connecting the inputs and outputs in parallel. The
status outputs ST1 and ST2 have to be configured as a 'Wired OR' function with a single pull-up resistor.
Terms
Ibb
Vbb IIN1
IN1
3
Leadframe
Vbb
I L1
I ST1
ST1
4
V IN1 VST1
PROFET
Chip 1
GND1
OUT1
17,18
2 IGND1
RGND1
VON1
VOUT1
I IN2
7
I ST2
8
V
IN2
VST2
Leadframe
Vbb
IN2
I L2
PROFET
OUT2
13,14
Chip 2
ST2
GND2
6
RGND2
IGND2
VON2
VOUT2
Leadframe (Vbb) is connected to pin 1,10,11,12,15,16,19,20
External RGND optional; two resistors RGND1, RGND2 = 150 Ω or a single resistor RGND = 75 Ω for reverse
battery protection up to the max. operating voltage.
Semiconductor Group
6
2003-Oct-01