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参数资料
| 型号： | MC34261P |
| 厂商： | MOTOROLA INC |
| 元件分类： | 稳压器 |
| 英文描述： | Single Output LDO, 250mA, Fixed(2.85V), Low Noise, Fast Transient Response 5-SOT-23 |
| 中文描述： | 0.5 A POWER FACTOR CONTROLLER, PDIP8 |
| 封装： | PLASTIC, DIP-8 |
| 文件页数： | 1/12页 |
| 文件大小： | 309K |
| 代理商： | MC34261P |
SEMICONDUCTOR
TECHNICAL DATA
POWER FACTOR
CONTROLLERS
PIN CONNECTIONS
Order this document by MC34261/D
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
8
1
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
Voltage Feedback
Input
1
2
3
4
8
7
6
5
(Top View)
Compensation
Multiplier Input
Current Sense
Input
VCC
Drive Output
Gnd
Zero Current
Detect Input
Device
Operating
Temperature Range
Package
ORDERING INFORMATION
MC34261D
MC34261P
TA = 0
°
to +70
°
C
SO–8
Plastic DIP
MC33261D
MC33261P
SO–8
Plastic DIP
TA = –40
°
to +85
°
C
1
MOTOROLA ANALOG IC DEVICE DATA
The MC34261/MC33261 are active power factor controllers specifically
designed for use as a preconverter in electronic ballast and in off–line power
converter applications. These integrated circuits feature an internal startup
timer, a one quadrant multiplier for near unity power factor, zero current
detector to ensure critical conduction operation, high gain error amplifier,
trimmed internal bandgap reference, current sensing comparator, and a
totem pole output ideally suited for driving a power MOSFET.
Also included are protective features consisting of input undervoltage
lockout with hysteresis, cycle–by–cycle current limiting, and a latch for single
pulse metering. These devices are available in dual–in–line and surface
mount plastic packages.
Internal Startup Timer
One Quadrant Multiplier
Zero Current Detector
Trimmed 2% Internal Bandgap Reference
Totem Pole Output
Undervoltage Lockout with Hysteresis
Low Startup and Operating Current
Pinout Equivalent to the SG3561
Functional Equivalent to the TDA4817
Simplified Block Diagram
Voltage
Feedback
Input
Multiplier,
Latch,
PWM,
Timer,
&
Logic
Vref
Error Amp
Multiplier
Undervoltage
Lockout
2.5V
Reference
Zero Current Detector
5
8
6
7
4
3
2
1
Drive Output
Gnd
Zero Current
Detect Input
Multiplier
Input
Compensation
VCC
Current Sense
Input
Motorola, Inc. 1996
Rev 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC34262D | 功能描述:功率因数校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| MC34262DG | 功能描述:功率因数校正 IC Critical Mode PFC w/OVP RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| MC34262DG | 制造商:ON Semiconductor 功能描述:Driver IC |
| MC34262DR2 | 功能描述:功率因数校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| MC34262DR2G | 功能描述:功率因数校正 IC Critical Mode PFC w/OVP RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
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