Description

The ML4824P-I is a controller for power factor corrected, switched mode power supplies. It enables Power Factor Correction (PFC) which allows the use of smaller, lower cost bulk capacitors and reduces power line loading and stress on the switching FETs. This controller complies with the IEC1000-2-3 specification.

Specifications and features

- Internally synchronized PFC and PWM functions in one IC

- Low total harmonic distortion

- Reduces ripple current in the storage capacitor between the PFC and PWM sections

- Average current, continuous boost leading edge PFC

- Fast transconductance error amp for voltage loop

- High efficiency trailing edge PWM can be configured for current mode or voltage mode operation

- Average line voltage compensation with brownout control

- PFC overvoltage comparator eliminates output "runaway" due to load removal

- Current fed gain modulator for improved noise immunity

- Overvoltage protection, UVLO, and soft start

Application Scenarios

The ML4824P-I controller can be used in power factor corrected, switched mode power supplies. It is suitable for various applications that require power factor correction and low total harmonic distortion, such as power supply units for electronic devices, industrial equipment, and lighting systems.

Comparison

- Enables power factor correction, resulting in increased energy efficiency and compliance with IEC1000-2-3 specification

- Reduces the size and cost of bulk capacitors

- Reduces power line loading and stress on the switching FETs

- Low total harmonic distortion

- None reported