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DP2525

Part Number	DP2525
Manufacturer	DEVELOPER MICROELECTRONICS
Description	Low Cost Primary Side Regulation(PSR) PWM Power Switch
Published	Oct 31, 2018
Detailed Description	DP2525 Low Cost Primary Side Regulation(PSR) PWM Power Switch FEATURES Low Cost Solution Buil-in 800V power BJT Multi-M...
Datasheet	DP2525 PDF File

Overview

DP2525 Low Cost Primary Side Regulation(PSR) PWM Power Switch FEATURES Low Cost Solution Buil-in 800V power BJT Multi-Mode PSR Control ±Audio Noise Free Operation 4% CC and CV Regulation Optimized Dynamic Response Low Standby Power <100mW Programmable Cable Drop Compensation (CDC) in CV Mode Built-in AC Line & Load CC Compensation Build in Protections: Short Load Protection (SLP) Cycle-by-Cycle Current Limiting Leading Edge Blanking (LEB) Pin Floating Protection VDD OVP & UVP & Clamp Available with DP2525 Versions in SOP-7 Package APPLICATIONS Battery Chargers for Cellular Phones AC/DC Power Adapter and LED Lightings GENERAL DESCRIPTION DP2525 is a low cost and high performance Primary Side Regulation (PSR) controller for offline small power converter applications which can provide very tight output voltage regulation (CV) and output current control (CC) ideal for charging applications.
In CV mode, DP2525 adopts Multi Mode Control which uses the hybrid of AM (Amplitude Modulation) mode and (Frequency Modulation) FM mode to improve system efficiency and reliability.
In CC mode, the IC uses PFM control with line and load CC compensation.
The IC can achieve audio noise free operation and optimized dynamic response.
The built-in Cable Drop Compensation (CDC) function can provide excellent CV performance.
DP2525 integrates functions and protections of Under Voltage Lockout (UVLO), VDD over Voltage Protection (VDD OVP), Cycle-by-cycle Current Limiting (OCP), Short Load Protection (SLP), Pin Floating Protection, VDD Clamping, etc.
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TYPICAL APPLICATION CIRCUIT 1/11 Rev.
2.
0 DP2525 Low Cost Primary Side Regulation(PSR) PWM Power Switch Pin Configuration Marking Information Pin Description (DP2525) Pin Number Pin Name I/O 1 VDD P 2 FB I 3 NC NC 4 CS I 5,6 HV O 7 GND P Description Power Supply Pin of the Chip.
System feedback pin which regulates both the output voltage in CV mode and output current in CC mode based on the flyback voltage of ...

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