BD94122F - ROHM

BD94122F White LED Driver

BD94122F is a current resonance type LED Driver, which can connect to PFC directly. LED current is controlled by driving output frequency. Because this IC can use half bridge structure, it can reduce the number of external components. BD94122F has some protection functions against fault conditions such as Over Voltage Protection(OVP), LED Short Protection(LS.

Features

 1 Channel Push Pull Control
 Current Feedback by Driving Frequency Resolution
 Timer Latch Circuit
 Under Voltage Detection for IC’s Power Line (VCC UVLO)
 Output Over Voltage Protection
 Driving Output Frequency (Minimum Frequency Setting) Tolerance: ±5%
 Error Signal Output from FAIL Pin
 Control IC Power On and Off by STB Pin
 Burst Control by External PWM
 Analog Dimming by External DC
 Pulse/DC Conversion Function for ADIM Applications
 TV, Computer Display, LCD Backlighting Typical Application Circuit PVIN RN12 LED1P LED2P RVOM11 RVOM21 DN1 CN12 DN2 CSOFTON RRT RSSFB C.