The BTS50040-2SFA is a dual-channel high-side power switch with a typical RDS(on) of 4 mΩ per channel in a PG-DSO-36 package providing load current sense diagnosis and embedded protection functions including ReverSave™ and Infineon® INTELLIGENT LATCH. It is most suitable for high current loads in 12V automotive and industrial systems, such as glow plug controllers, PTC heaters, seat heaters or lamps.
The power transistors are built by a dual N-channel vertical power MOSFET with a charge pump for high-side switching. The design is based on smart power chip-by-chip technology. The BTS50040-2SFA has ground-referenced CMOS-compatible inputs. The slew rates can be adjusted via slew rate selection pins. Integrated protection functions include short circuit protection with latch, overtemperature shutdown with latch, overvoltage protection and loss of ground protection.
ReverSave™ is a protection feature that causes the power transistor to switch on in the event of reverse polarity. As a result, the power dissipation is reduced during reverse polarity. INTELLIGENT LATCH ensures a latched switch-off and reporting if a fault occurs.
The BTS50040-2SFA has a very low standby current for low current consumption at module level. The device is qualified according to AEC.
Features
- Dual-channel high-side switch with typ. RDS(on) of 4 mΩ per channel
- Supply voltage range 6 V to 28 V
- 3.3 V- and 5 V-compatible, ground-referenced CMOS-compatible inputs for each channel
- Overtemperature shutdown with latch
- Short circuit protection with latch
- Secure load turn-off while device ground disconnected
- Multiplexed proportional load current sense signal (IS)
- Slew rate configurable via external circuitry or signal
- ReverSave™ reverse battery protection without external components
- Inverse load current capability
- Infineon® INTELLIGENT LATCH
- Optimized electromagnetic compatibility
- AEC-qualified
Applications
- Power distribution
- Relay replacement
- Fuse replacement
- Heating applications
- Other applications where 12 V high-current loads have to be switched
