The high-side switches control many load types in cars, offer current sensing, strong protection, and meet tough standards for use in modern vehicle systems.
NOVOSENSE Microelectronics has announced the release of the NSE34xxx and NSE35xxx series high-side switches, designed to drive various load types such as resistive, inductive, and halogen lamps in automotive systems like Body Control Modules (BCMs). They are also well-suited for managing large capacitive loads commonly found in the power distribution of Zonal Control Units (ZCUs). These switches are available in 1, 2, or 4-channel configurations and come in HSSOP-16 or HSSOP-14 packages, with Rds(on) values ranging from 8mΩ to 140mΩ. They feature accurate current sensing for real-time load monitoring and fault diagnosis.
To ensure safe and reliable operation, the series includes comprehensive protection features such as overcurrent, short-circuit, overtemperature, overvoltage, ground and power loss, reverse polarity, and open-load detection. Both the NSE34xxx and NSE35xxx series are AEC-Q100 qualified and meet AEC-Q100-012 level A standards, offering durability with over one million cycles of short-circuit and overcurrent protection. These high-side switches are ideally suited for use in BCMs and ZCUs in modern automotive architectures.
Some of the key features of the NSE34xxx and NSE35xxx include:
- AEC-Q100 qualified
- Operating temperature range: -40°C – 125°C
- Accurate current sensing: +/-25% at 200mA load
- Overvoltage clamping, and supporting inductive loads
- Overcurrent protection
- Overtemperature protection: absolute overtemperature protection, relative overtemperature protection
- Diagnostic output: Open circuit detection, short circuit detection, and overtemperature detection
- AEC-Q100-012 Level A certification
The high-side switch series is designed to drive resistive, inductive, halogen, and capacitive loads in automotive Body Control Modules (BCMs) and Zonal Control Units (ZCUs). Offered in 1-, 2-, or 4-channel versions with HSSOP-14 or HSSOP-16 packaging and Rds(on) values ranging from 8 to 140 mΩ, the series features accurate current sensing for diagnostics and monitoring, built-in protection functions, and AEC-Q100-012 Grade A certification for over one million protection cycles.
