BTS3256D Infineon Technologies, BTS3256D Datasheet - Page 22

• Manufacturer Part Number: BTS3256D
• Description: IC SWITCH SMART LOWSIDE TO252-5
• Manufacturer: Infineon Technologies
• Series: HITFET®r
• Type: Low Sider

Specifications of BTS3256D

• Input Type: Non-Inverting
• Number Of Outputs: 1
• On-state Resistance: 10 mOhm
• Current - Output / Channel: 7.5A
• Current - Peak Output: 42A
• Voltage - Supply: 5.5 V ~ 30 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8
The device provides embedded protection functions against over temperature, over load and short circuit.
Note: Integrated protection functions are designed to prevent IC destruction under fault conditions described in the
8.1
The device is protected against over temperature resulting from overload and / or bad cooling conditions.
The BTS 3256D has a thermal restart function. When overheating occurs, the device switches off for the restart
delay time t
level. The fault feedback is activated during over temperature situation. See
The diagram naming refers to
Figure 16
8.2
The BTS 3256D is equipped with a voltage clamp mechanism that keeps the Drain-Source voltage V
level. This stage is also used for inductive clamping.
See
Datasheet
“Inductive Output Clamp” on Page 14
data sheet. Fault conditions are considered as “outside” normal operation.
High
Low
T
I
I
high
low
INfault
INnom
J SD
V
IN
I
0
DI
T
IN
restart
J
Protection Functions
Thermal Protection
Status Feedback via Input Current at Over temperature
Over Voltage Protection
. After this time the device restarts if the temperature is below threshold and the IN has logic high
T
JSD
Figure
14.
for details.
Thermal shutdown
22
Don’t care
t
restart
After delay time , IN is high
Over temperature is gone
Smart Low Side Power Switch
Figure 16
thermal _ fault_autorestart.emf
HITFET - BTS 3256D
for the restart behavior.
Protection Functions
Rev. 1.0, 2009-05-05
t
t
t
t
D
at a certain