Infineon Technologies BCR431U Linear Low Voltage Drop LED Driver
Infineon Technologies BCR431U Linear Low Voltage Drop Driver is designed to regulate LED current in standalone operation without external power transistors. The BCR431U is suitable for driving currents up to 37mA, with a supply voltage range from 6V to 42V. The LED current level can be adjusted by connecting a high-ohmic resistor Rset to pin RS.
The integrated LED driver stage's minimum voltage drop is 200mV (maximum) at 37mA, improving the overall system efficiency and providing extra voltage headroom to compensate for LED forward and supply voltage tolerances.
The BCR431U also integrates a smart temperature-controlling circuit, which reduces the LED current when the junction temperature is very high.
Features
- Supply voltage from 6V to 42V
- Controls up to 36.5mA LED current
- LED current can be adjusted by Rset functionality
- Maximum 200mV saturation voltage at 32.8mA
- 105mV saturation voltage at 15mA (typical)
- LED current precision ±10% over the whole current range
- Smart over-temperature protection function
- Compact PG-SOT23-6 package
- Qualified for industrial applications according to the relevant tests of JEDEC47/20/22
Applications
- LED strips and modules
- Architectural lighting
- LED displays and channel letters
- Emergency lighting
- Retail lighting
- White good lighting
Development Tools
Infineon Technologies BCR431U LED Driver Evaluation Board
Provides a reference design for a linear LED driver circuit based on the BCR431U Driver IC.
Typical Application Circuit
Package Outline
Publicado: 2020-05-13
| Actualizado: 2024-10-18