Texas Instruments TPS2HB50-Q1 Dual-Channel Smart High-Side Switch
Texas Instruments TPS2HB50-Q1 Dual-Channel Smart High-Side Switch is intended for use in 12V automotive systems. The device integrates robust protection and diagnostic features to ensure output port protection, even during harmful events like short circuits in automotive systems. The device protects against faults through a reliable current limit, which is adjustable from 2A to 18A, depending on the device variant. The high current limit range allows for usage in loads that require large transient currents, while the low current limit range provides improved protection for loads that do not require high peak currents. The device is capable of reliably driving various load profiles.
The TPS2HB50-Q1 also provides a high-accuracy analog current sense for improved load diagnostics. By reporting load current and device temperature to a system MCU, the device enables predictive maintenance and load diagnostics that improve the system's lifetime. The TPS2HB50A-Q1 has a current range limit of 2A to 10A, while the TPS2HB50B-Q1 has a current limit range of 3.6A to 18A. The TPS2HB50-Q1 is available in an HTSSOP package, allowing a reduced PCB footprint. The Texas Instruments TPS2HB50A-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- Qualified for automotive applications
- AEC-Q100 qualified with the following results
- Device temperature grade 1 (TA = -40°C to 125°C ambient operating temperature range)
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
- Withstands 40V load dump
- Dual-channel smart high-side switch with 50mΩ RON (TJ = 25°C)
- Improve system-level reliability through adjustable current limiting
- Current limit adjustable from 2A to 18A
- Provides fault indication through SNS pin
- Detection of open load and short-to-battery
- Robust integrated output protection
- Integrated thermal protection
- Protection against short-to-ground/battery
- Protection against reverse battery events, including automatic switch-on with reverse voltage
- Automatic shut off if the loss of battery/ground occurs
- Integrated output clamp to demagnetize inductive loads
- Configurable fault handling
- Analog sense output can be configured to measure accurately
- Load current
- Device temperature
Applications
- Automotive display module
- ADAS modules
- Seat comfort module
- Transmission control unit
- HVAC control module
- Body control modules
- LED lighting
Functional Block Diagram
Publicado: 2020-03-20
| Actualizado: 2025-03-10