DAP005 PDF Datasheet – Transition-mode PFC Controller

Part Number: DAP005, DAP005TR

Function: Advanced transition-mode PFC controller

Package: SO-14 Pin Type

Manufacturer: STMicroelectronics

Images:DAP005 pdf pinout


DAP005 is Advanced transition-mode PFC controller. The device is a current-mode PFC controller operating in Transition Mode (TM). Based on the core of a standard TM PFC controller, it offers improved performance and additional functions.

The highly linear multiplier, along with a special correction circuit that reduces crossover
distortion of the mains current, allows wide-range-mains operation with an extremely low
THD even over a large load range.

A Transition-Mode Power Factor Correction (PFC) controller is a specialized electronic circuit or component used in power supplies and converters to improve power factor and increase the overall efficiency of the power conversion process. Power factor correction is important because it helps reduce the amount of reactive power in an electrical system, which can lead to more efficient energy usage and reduced electricity costs.


1. Transition-mode control of PFC pre-regulators

2. Very precise adjustable output overvoltage protection

3. Tracking boost function

4. Protection against feedback loop failure (Latched shutdown)

5. Interface for cascaded converter’s PWM controller

6. Input voltage feedforward (1/V2)

7. AC brownout protection


DAP005 datasheet pinout


1. PFC pre-regulators for:

(1) HI-END AC-DC adapter/charger

(2) Desktop PC, server, WEB serve

DAP005 PDF Datasheet