RT8471 Overview
The RT8471 is a high efficiency, continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs from a voltage source higher than the LED voltage. It operates from an input voltage of 7V to 36V and employs hysteretic control with a high side current sense resistor to set the constant output current. The RT8471 includes an output switch and a high side output current...
RT8471 Key Features
- 7V to 36V Input Voltage Range
- Hysteretic Control with High Side Current Sensing
- Internal N-MOSFET with 350mΩ Low RDS(ON)
- 1A Output Current (For TSOT-23-5 Only)
- 1.2A Output Current (For SOP-8 (Exposed Pad) and
- Up to 97% Efficiency
- Typical ±5% LED Current Accuracy
- Analog or PWM Control Signal for LED Dimming
- 300Hz On-Board Ramp Generator
- Input Under Voltage Lockout