ST offers a wide range of highly-integrated voltage controllers for CV (constant voltage), CC (constant current) SMPS applications, such as adapters and battery chargers. They enable a more robust design, safer SMPS, very low power dissipation and low stress for secondary side components.
SEA05L features very efficient LED driving
The SEA05L is a highly-integrated voltage controller with a LED pilot lamp driver for dual control loop SMPS applications that require CV (constant voltage) and CC (constant current) regulation.
It integrates a voltage reference, two op amps (with OR-ed open-drain outputs), a low-side current sensing circuit ,and a LED pilot-lamp driver implemented with an open-drain MOSFET driven by square waveform with 12.5% duty cycle at 1 kHz that reduces LED consumption.
Housed in one of the smallest available packages (SOT23-6L), the SEA05L is ideal for space-shrunk applications such as adapters and chargers with a LED pilot lamp.
- Enables SMPS with very low no-load power consumption
- Reduces power consumption of LED pilot lamp by 77.5% to meet low standby consumption requirements keeping the color and the brightness of LED pilot lamp
- Reduces BOM