BTS 640 S2
Overvoltage protection of logic part
GND disconnect
+ 5V
+ V
I
bb
bb
V
4
bb
R
ST
V
V
3
bb
Z2
R
IN
I
6
IN
OUT
OUT
1
ST
PROFET
ST
Logic
7
IS
5
IS
R
V
GND
2
V
Z1
R
V
V
V
V
IS
IN
ST
GND
IS
GND
R
GND
Any kind of load. In case of Input=high is VOUT ≈ VIN - VIN(T+)
.
Signal GND
Due to VGND >0, no VST = low signal available.
V
R
= 6.1 V typ., V = 47 V typ., R = 4 kΩ typ,
Z2 I
Z1
GND disconnect with GND pull up
= 150 Ω, R = 15 kΩ, R = 1 kΩ, R = 15 kΩ,
GND
ST
IS
V
4
V
3
1
5
bb
Reverse battery protection
IN
ST
IS
6
7
+ 5V
OUT
OUT
PROFET
V
-
bb
RST
GND
2
RI
Logic
VZ1
IN
ST
IS
OUT
V
V
V
V
ST
IN
IS
GND
Power
Inverse
Diode
V
RV
RIS
bb
Any kind of load. If VGND > VIN - VIN(T+) device stays off
Due to VGND >0, no VST = low signal available.
GND
RL
RGND
V
disconnect with energized inductive
bb
load
Power GND
Signal GND
The load R is inverse on, temperature protection is
not active
L
4
V
high
3
1
bb
R
= 150 Ω, R = 4 kΩ typ, R ≥ 500 Ω, R ≥ 200 Ω,
GND
IN
ST
IS
I
ST
IS
6
7
OUT
OUT
R ≥ 500 Ω,
V
PROFET
5
GND
2
Open-load detection
OFF-state diagnostic condition: VOUT > 3 V typ.; IN low
V
V
bb
bb
R
Normal load current can be handled by the PROFET
itself.
EXT
OFF
V
Out
OUT
ST
Logic
R
O
Signal GND
Semiconductor Group
Page 9
2003-Oct-01
INFINEON [ Infineon ]
