PL3378 datasheet(1/8 Pages) PMICRO

부품명	PL3378

상세설명	Accurate CC/CVPrimarySidePWMPower Switch

PDF	8 Pages

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제조업체	PMICRO [Suzhou Juyuan Microelectronics Co., Ltd]

홈페이지	https://pmicro.com.cn/en

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PL3378

Accurate CC/CV Primary Side

PWM Power Switch

Product Description

PL3378 is a high efficiency Primary Side Regulator and

highly integrated PWM Power Switch for AC/DC power

supply applications. It simplifies conventional CC/CV

charger/adaptor designs by eliminating the opto-coupler

and secondary control circuitry. Constant output voltage

and current regulation is realized as shown in the Fig.1

below.

Multi-mode operations are utilized to achieve low standby

power, high efficiency and audio & noise free. PL3378

operates in PFM mode at large load condition, with the

load becomes medium or light, the chip operates in Green

mode to achieve high efficiency.

PL3378 also offers rich protection features including

Cycle-by-Cycle peak current limiting, UVLO, OTP, load

OVP, and VDD over voltage.

Fig.1. Typical CC/CV Curve

Pin Configuration

PL3378

Key Features

• Built-in Integrated Power BJT

• Accurate Constant Current

Regulation at Universal AC input

• Eliminates Opto-coupler and all

Secondary CC/CV Control Circuitry

• Built-in Line Compensation for

Tighter CC/CV Regulation

• Built-in Compensation for

Transformer Inductance

Tolerances

• Adjustable Output Cable

Compensation

• Adaptive Multi-mode PFM

Control for Improving Efficiency

• Low Start-up Current

• Built-in Leading Edge Blanking

(LEB)

• Cycle-by-Cycle Current Limiting

• VDD Under Voltage Lockout and

VDD over voltage protection

• Built-in Short Circuit Protection and

Output Overvoltage Protection

• Over temperature protection

Applications

AC/DC power supply applications

• Cell Phone Charger

• Small Power Adaptor/Charger

• LED Driver

• Standby Supply for Consumer

Electronics

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PL3378 데이터시트(PDF) 1 Page - Suzhou Juyuan Microelectronics Co., Ltd

PL3378 데이터시트(HTML) 1 Page - Suzhou Juyuan Microelectronics Co., Ltd

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