BTS 840-S2 Infineon Technologies, BTS 840-S2 Datasheet - Page 8

• Manufacturer Part Number: BTS 840-S2
• Manufacturer: Infineon Technologies

Specifications of BTS 840-S2

• Packages: P-DSO-20
• Channels: 2.0
• Ron @ Tj = 25°c: 30.0 mOhm
• Recommended Operating Voltage Min.: 5.0 V
• Recommended Operating Voltage Max.: 34.0 V
• Il(sc): 24.0 A

Truth Table
L = "Low" Level
H = "High" Level
Parallel switching of channel 1 and 2 is 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. The current
sense outputs IS1 and IS2 have to be connected with a single pull-down resistor.
Terms
20
21)
22
23
24
Infineon technologies
Normal
operation
Current-
limitation
Short circuit to
GND
Over-
temperature
Short circuit to
V
Open load
Undervoltage
Overvoltage
Negative output
voltage clamp
) The voltage drop over the power transistor is V
) Low ohmic short to
) Power Transistor off, high impedance
) with external resistor between V
bb
zero
An external short of output to V
is used, an offset voltage at the GND and ST pins will occur and the V
Leadframe (V
External R
battery protection up to the max. operating voltage.
V
V
bb
IN1
V ST1
I bb
I IN1
GND
V IS1
I ST1
I IS1
bb
Input 1
Input 2
optional; two resistors R
) is connected to pin 1,10,11,20
level
3
4
5
X = don't care
V
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
ST1
IN1
IS1
Status signal after the time delay shown in the diagrams (see fig 5. page 13)
Leadframe
bb
R
GND1
may reduce the output current
PROFET
Output 1
Output 2
Chip 1
GND1
2
V
level
bb
L
L
H
H
H
H
H
L
L
L
20 )
L
L
23 )
L
L
L
L
L
bb
BB
I
GND1
, in the off state, causes an internal current from output to ground. If R
and OUT
OUT1
Status 1
Status 2
H (L
17,18
Z = high impedance, potential depends on external circuit
GND1
level
L
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
21)
24)
I L1
V OUT1
, R
V ON1
bb
)
-V
GND2
8
OUT
<nominal
V
I
Sense 1
Sense 2
nominal
= 150
IN2
> 3V typ. Under this condition the sense current
Current
Current
L
and therefore also the sense current
I IS
V ST2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
I IN2
V IS2
I ST2
22)
I IS2
or a single resistor R
7
8
9
ST2
IN2
IS2
Leadframe
ST low
R
GND2
PROFET
Chip 2
signal may be errorious.
GND2
6
V
bb
I
GND2
OUT2
GND
13,14
= 75
BTS 840 S2
2003-Oct-01
I
I L2
V OUT2
IS
V ON2
.
for reverse
GND
I
IS
is