Datasheet > AP3783R_16

AP3783R_16

更新时间： 2024-11-24 01:06:27

品牌	Logo	应用领域
美台 - DIODES		开关
页数	文件大小	规格书
17页	582K
描述
PRIMARY SIDE REGULATED SWITCHING MODE POWER SUPPLY CONTROLLER

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AP3783R_16 数据手册

AP3783R

PRIMARY SIDE REGULATED SWITCHING MODE POWER SUPPLY CONTROLLER

Description

Pin Assignments

The AP3783R is a high frequency, high efficiency and high accuracy

switching mode power supply controller to drive power MOSFET for

5V/2A battery charger/adapter applications. The controller regulates

the output voltage and current in the primary side by piece-wise Pulse

Frequency Modulation (p-PFM) in discontinuous conduction mode

(DCM). The system operating frequency reduces linearly from heavy

load to light load in each interval of the p-PFM, and enters constant

current mode when the load current equals to the maximum system

output current.

(Top View)

Pin 1 Mark

GND

VCC

CPC

DRI

The AP3783R provides accurate constant voltage (CV), constant

current (CC) and outstanding dynamic performance without requiring

an opto-coupler. It also eliminates the need of loop compensation

circuitry while maintaining stability.

SOT26

The AP3783R provides valley turn-on function and 3-Segment drive

current to improve the power supply EMI performance. The AP3783R

also has built-in fixed cable voltage drop compensation (8%, 4% and

2% of nominal system output voltage to meet various cables with

different length and gauge) and adjustable line voltage compensation.

Features



Less than 30mW Standby Power Consumption

Meet Efficiency Requirement of COC Trier2

The AP3783R achieves excellent regulation and high average

efficiency, less than 2s startup time for 30mW standby power solution.

When AP3783R is used with APR3415, good undershoot and

efficiency performances can be achieved.

Valley Turn-on to Reduce Switching Loss and Improve EMI

Piece-wise Frequency Reduction to Enhance Conversion

Efficiency and Suppress Audio Noise



Over Voltage Protection (OVP)

Over Temperature Protection (OTP)

The AP3783R is packaged in SOT26.

Short Circuit Protection (SCP) with Hiccup

3-Segment Drive Current for Radiative EMI Suppression

Operating Frequency Jitter Function for Conductive EMI

Suppression



Drive MOSFET for 5W to 20W Battery Charger/Adapter

Applications

SOT26 SMD Package Comply with Level 3 of IPC/JEDEC J-STD-

033A



Adapters/Chargers



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)

Standby and Auxiliary Power Supplies

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

1 of 17

www.diodes.com

March 2016

AP3783R

Document number: DS37448 Rev. 6 - 2

12 3 4 5 6 7...17

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