FR9703 Datasheet | Fiti

24V, 1.5A, 1.2MHz LED Driver with Dimming Control Description The FR9703 is a current mode, control LED driver IC. It provides wide 2.8V to 24V input voltage range and 1.5A output current capability. The FR9703 includes a PWM dimming input that can accept an external control signal with a duty ratio of 5 % to 100% and PWM dimming is from 500Hz to 1MHz. PWM dimming frequency below 500Hz and external control signal with a duty ratio of 1% to 100%. It also supports 0.65V to 1.2V analog dimming input which can be used for linear dimming of the LED current. The FR9703 fault protection includes current limit, input OVP, UVLO and thermal shutdown. The soft-start function prevents inrush current at turn-on. Internal pensation function reduces external pensatory ponents and simplifies the design process. Features Input Voltage Range: 2.8V to 24V 1.5A Output Current 1.2MHz Switching Frequency 200m Q Integrated Power MOSFET 100m V Reference Voltage Analog and PWM Dimming Techniques Cycle-by-Cycle Current Limit Over-Temperature Protection with Auto Recovery Input Under Voltage Lockout Input Over Voltage Protection SOT-23-6 Package Applications LED Driver IP Camera LED Flashlights Pin Assignments S6 Package (SOT-23-6) ISEN VIN EN/D 65 4 (Marking) LX GND NC Figure 1. Pin Assignments of FR9703 Ordering Information FR9 7 0 3 - Package Type S6: SOT-23-6 Package SOT-23-6 Marking Part Number FR97 0 3 S6 Product Code FU2 FR9703-Preliminary 0.1-NOV-2019 Typical Application Circuit RSEN ISEN C1 10μF PWM or Analog Signal EN/D D1 C2 1μF L1 3...