|
|
DP2532のメーカーはDEPP Microelectronicsです、この部品の機能は「High Precision CC/CV Primary-Side PWM Controller」です。 |
部品番号 | DP2532 |
| |
部品説明 | High Precision CC/CV Primary-Side PWM Controller | ||
メーカ | DEPP Microelectronics | ||
ロゴ | |||
このページの下部にプレビューとDP2532ダウンロード(pdfファイル)リンクがあります。 Total 9 pages
DP2532
High Precision CC/CV Primary-Side PWM Controller
GENERAL DESCRIPTION
DP2532 is a high performance offline PWM
controller for low power AC/DC charger and
adapter applications. It operates in primary-side
sensing and regulation. Consequently,
opto-coupler and TL431 could be eliminated. High
Precision Constant Voltage (CV) and Constant
Current (CC) control are integrated as shown in
the figure below.
In CC control, the current and output power setting
can be adjusted externally by the sense resistor Rs
at CS pin. In CV control, multi-mode operations are
utilized to achieve high performance and high
efficiency. In addition, good load regulation is
achieved by the built-in Cable Drop Compensation.
Device operates in PFM in CC mode as well at
large load condition and it operates in PWM with
frequency reduction at light/medium load. The chip
consumes very low operation current, it can
achieve less than 80mW standby power.
DP2532 offers comprehensive protection coverage
with auto-recovery features including
Cycle-by-Cycle current limiting, VDD Over Voltage
Protection (VDD OVP), short circuit protection,
built-in leading edge blanking, VDD under voltage
lockout (UVLO), OTP, etc.
High precision constant voltage (CV) and constant
current (CC) can be achieved by DP2532.
DP2532 is offered in SOT23-6 package..
TYPICAL APPLICATION
FEATURES
■ ± 5% Constant Voltage Regulation and
■ Current Regulation at Universal AC Input
Primary Side Regulation (PSR) Without TL431
and Opto-coupler
■ No Need for Control Loop Compensation
■ Programmable CV and CC Regulation
■ Multi-Mode PWM/PFM Operation
■ Output Short Load Protection
■ Less than 80mW Standby Power
■ Built-in Line Voltage and Primary Winding
Inductance Compensation
■ Built-in Adaptive Current Peak Regulation
■ Programmable Cable Drop Compensation
■ Audio Noise Free Operation
■ Built-in Over Temperature Protection (OTP)
■ Soft Gate Driver for Good EMI Performance
■ Built-in Leading Edge Blanking (LEB)
■ Cycle-by-Cycle Current Limiting
■ VDD Under Voltage Lockout with Hysteresis
(UVLO)
■ VDD OVP & Clamp
APPLICATIONS
Low Power AC/DC offline SMPS for
■ Cell Phone Charger
■ Digital Camera Charger
■ Small Power Adapter
■ Auxiliary Power for PC, TV etc.
■ Linear Regulator/RCC Replacement
www.depuw.com
- 1 -/9
Rev.2.0 AUG 2011
1 Page Marking Information
DP2532
High Precision CC/CV Primary-Side PWM Controller
TERMINAL ASSIGNMENTS
Pin Num
1
2
3
Pin Name
GND
GATE
CS
4 INV
5 NC
6 VDD
I/O Description
P IC Ground.
O Totem-pole gate driver for power MOSFET
I
Current sense input. Connected to power MOSFET current sensing
resistor node
I
The voltage feedback from auxiliary winding. Connected to resistor divider
from auxiliary winding reflecting output voltage.
- No connect.
P Power supply.
www.depuw.com
- 3 -/9
Rev.2.0 AUG 2011
3Pages CHARACTERIZATION PLOTS
DP2532
High Precision CC/CV Primary-Side PWM Controller
3
www.depuw.com
- 6 -/9
Rev.2.0 AUG 2011
6 Page | |||
ページ | 合計 : 9 ページ | ||
|
PDF ダウンロード | [ DP2532 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
DP2532 | High Precision CC/CV Primary-Side PWM Controller | DEPP Microelectronics |
DP2535 | High Precision CC/CV Primary-Side PWM Power Switch | DEPP Microelectronics |