Description
The PT4121 is a high efficiency step-down controller.It is designed to operate in continuous conduction mode and drive single or multiple series connected LED efficiently from a voltage source higher than the total LED chain voltage.
Features
- Simple low parts count.
- Wide input voltage range: 6V to 60V.
- High efficiency (up to 97%).
- Single pin on/off and brightness control using
DC Voltage or PWM.
- Up to 1MHz switching frequency.
- Adjustable Constant LED Current.
- Typical 3% output current accuracy.
- High-Side Current Se.
PT4121 Datasheet
