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AP2002S

更新时间： 2024-11-19 22:05:47
品牌 Logo 应用领域
易亨 - ANACHIP 控制器
页数 文件大小 规格书
7页 181K
描述
Synchronous PWM Controller

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中文翻译

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AP2002S 数据手册

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AP2002  
Synchronous PWM Controller  
„ Features  
„ General Description  
- Single or Dual Supply Application  
- 0.8V + 1.0% Voltage Reference.  
- Fast transient response.  
The AP2002 is a low-cost, full featured, and  
synchronous voltage-mode controller designed for  
use in single ended power supply applications  
- Synchronous operation for high efficiency (95%)  
- On-chip power good, OVP protect.  
- Small size with minimum external components  
- Soft Start and enable functions  
- Industrial temperature range  
where efficiency is of primary concern.  
This  
synchronous operation allows the elimination of  
heat sinks in many applications. The AP2002 is  
ideal for implementing DC/DC converters that is  
needed for the power advanced microprocessors in  
low cost systems, or in distributed power  
applications where efficiency is important. Internal  
level-shift, high-side drive circuitry, and preset  
shoot-thru control, allows the use of inexpensive  
N-channel power switches.  
- Under Voltage Lockout function  
- SOP-14L package  
„ Applications  
AP2002 features include temperature compensated  
voltage reference, an internal 200Khz virtual  
frequency oscillator, under voltage lockout  
protection, soft-start function and current sense  
- Microprocessor core supply  
- Low cost synchronous applications  
- Voltage Regulator Modules (VRM)  
- DDR termination supplies  
comparator circuitry.  
Power good signaling,  
- Networking power supplies  
- Sequenced power supplies  
shutdown, and over voltage protection are also  
provided by AP2002.  
„ Pin Assignment  
„ Pin Descriptions  
(Top View)  
Name  
Description  
14  
13  
12  
11  
10  
9
VCC  
PWRGD  
OVP  
OCSET  
PHASE  
DRVH  
1
2
3
4
5
6
7
GND  
SS/SHDN  
COMP  
SENSE  
BSTH  
BSTL  
DRVL  
VCC  
PWRGD  
OVP  
Chip supply voltage  
Logic high indicates correct output  
voltage (open drain output)  
Over voltage protection  
Sets the converter over-current trip  
point  
AP2002  
OCSET  
8
PGND  
Input from the phase node between  
the MOSFETs  
High side driver output  
Power ground  
PHASE  
SOP-14L  
DRVH  
PGND  
DRVL  
BSTL  
BSTH  
SENSE  
COMP  
„ Ordering Information  
Low side driver output  
Bootstrap, low side driver  
Bootstrap, high side driver  
Voltage sense input  
AP2002 X  
X
X
Compensation pin  
Package  
S: SOP-14L  
Lead Free  
Packing  
Blank : Tube  
Soft start, a capacitor to ground sets  
the slow start time  
Blank : Normal  
SS/SHDN  
GND  
L : Lead Free Package A : Taping  
Signal ground  
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of  
this product. No rights under any patent accompany the sale of the product.  
Rev. 0.2 Apr 14, 2004  
1/7  
1234567

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