Novosense Microelectronics demonstrated its 16/24-channel LED driver IC for automotive LED applications at PCIM Europe 2024. The highly integrated NSL21916/24 with flexible dimming and control capabilities offers a variety of driving options for up to 16/24 channels.
(Source: Novosense Microelectronics)
The automotive-qualified NSL21916/24 meets the requirements for high-channel-count linear LED drivers in new and emerging automotive lighting systems being developed to meet functional, safety and aesthetic design requirements, Novosense said. Target applications include rear lights, exterior lights and general automotive interior and body lighting.
The NSL21916/24, supplied in a HTSSOP38 package, offers a low dropout voltage of 600 mV maximum (@ 50 mA) and provides multiple regulation with LED open-circuit, LED short-to-ground and single LED short-circuit diagnostics. The series also includes a configurable watchdog timer that can be used to automatically configure failsafe states when connection to the host microcontroller is lost, and a thermal sharing mechanism that dissipates heat via a shunt resistor protects against excessive temperature rises, Novosense said.
The NSL21916/24 LED driver is qualified to AEC-Q100 Grade 1 (Tj from -40°C to 150°C). These new multi-channel LED drivers support individual control and high-side currents of up to 100 mA for each channel. They also feature a 2-bit global and 6-bit individual current setting combined with 12-bit independent PWM dimming and phase shift PWM dimming capabilities for both precise and flexible LED brightness control.
Other features include an on-chip programmable EEPROM that allows the same device to be configured for different applications, and a built-in UART/ digital interface that supports a variety of control and diagnostic functions. A standard CAN physical layer allows this interface to be used for long-distance, off-board communications without any impact on EMC, the company said.
Novosense showcased a live demo of the new LED drivers in a rear lighting application at PCIM 2024.
Advertisement
