TI TPS92410DR

The TPS92410 is an advanced linear driver with high-voltage startup function, suitable for low-power offline LED lighting applications. This device can be used in conjunction with the TPS92411 direct-drive switch to regulate the average current flowing through the LEDs. The TPS92410 is equipped with a reference voltage, which can be used to set the current level and temperature foldback threshold. This device contains a multiplier, which can be used to obtain an excellent power factor while maintaining good line regulation performance. Other features include: under-voltage lockout, over-voltage protection, forward phase dimmer detection, switching to constant current mode, temperature foldback, and thermal shutdown.

The TPS92410 device is a high-voltage linear regulator driver that can be used for offline LED drivers. It includes a feature that forces the regulator current to follow the rectified AC voltage to achieve high power-factor and low total harmonic distortion (THD). When the device detects multiple forward phase dimmer edges, the regulator current changes to a DC level to maintain a DC current draw to provide for a triac dimmer's hold current requirements. The TPS92410 device also includes linear MOSFET over-voltage protection to protect the MOSFET if the LEDs are shorted. It includes a thermal foldback feature to protect the entire circuit in the event it becomes overheated. Analog dimming capability allows light output to be controlled by a microcontroller or a 0 V to 10 V dimmer. The device also includes a precision voltage reference.

• Multiplier for excellent PFC, line regulation, and low THD
• VIN range from 9.5V to 450V
• Compatible with phase dimmers
• LED shutdown via analog dimming input
• Programmable overvoltage protection
• High-accuracy 3V reference
• Thermal foldback
• Thermal shutdown
• No inductor required
• 13-pin, high-voltage, SOIC package

• LED driver
• LED lighting bulb replacement