BTS3256DXT Infineon Technologies, BTS3256DXT Datasheet - Page 10

• Manufacturer Part Number: BTS3256DXT
• Manufacturer: Infineon Technologies

Specifications of BTS3256DXT

• Switch Type: Low Side
• Input Voltage: -0.3 to 5.5V
• Power Switch On Resistance: 10mOhm
• Number Of Outputs: Single
• Mounting: Surface Mount
• Supply Current: 3(Max)mA
• Package Type: TO-252
• Operating Temperature (min): -40C
• Operating Temperature (max): 150C
• Operating Temperature Classification: Automotive
• Pin Count: 4 +Tab
• Lead Free Status / RoHS Status: Compliant

5
5.1
The Supply pin V
Due to an internal voltage regulator the device can be supplied from a reverse polarity protected battery line.
Figure 5
5.1.1
In order to ensure a stable device behavior under all allowed conditions the Supply voltage V
under voltage lock out circuit. All device functions are only given for supply voltages above under voltage lockout.
There is no failure feedback for V
Figure 6
5.2
Figure 7
pin. A Zener structure protects the input circuit against ESD pulses. As the BTS 3256D has a supply pin, the
operation of the power MOS can be maintained regardless of the voltage on the IN pin, therefore a digital status
feedback down to logic low is realized. For readout of the fault information, please refer to Diagnosis
Fault Information” on Page
Datasheet
functional
shows the input circuit of the BTS 3256D. It’s ensured that the device switches off in case of open input
Device
Supply and Input Stage
Supply Circuit
Supply Circuit
Under Voltage Lock Out / Power On Reset
Under Voltage Lock Out
Input Circuit
off
S
5.5V .. 30V
is protected against ESD pulses as shown in
V
20.
S
S
V
< V
SUVOFF
Z
SUVON
D
.
BTS3256 D
Regulator
V
SUVON
GND
10
Figure
5.
Smart Low Side Power Switch
Supply .emf
HITFET - BTS 3256D
Supply and Input Stage
Rev. 1.0, 2009-05-05
S
is monitored by the
UVLO.emf
“Readout of