參數(shù)資料
型號(hào)： MC34262P
廠商： ON Semiconductor
文件頁(yè)數(shù)： 1/19頁(yè)
文件大?。?/td> 394K
描述： IC CTRLR PFC PRECONVERTER 8-DIP
產(chǎn)品變化通告： LTB Notification 03/Jan/2008
標(biāo)準(zhǔn)包裝： 50
模式： 臨界傳導(dǎo)（CRM）
電流 - 啟動(dòng)： 250µA
電源電壓： 12 V ~ 28 V
工作溫度： 0°C ~ 85°C
安裝類型： 通孔
封裝/外殼： 8-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 8-PDIP
包裝： 管件
?Semiconductor Components Industries, LLC, 2013
August, 2013  Rev. 14
1
Publication Order Number:
MC34262/D
MC34262, MC33262
Power Factor Controllers
The MC34262/MC33262 are active power factor controllers
specifically designed for use as a preconverter in electronic ballast
and in offline power converter applications. These integrated
circuits feature an internal startup timer for standalone applications,
a one quadrant multiplier for near unity power factor, zero current
detector to ensure critical conduction operation, transconductance
error amplifier, quickstart circuit for enhanced startup, 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 an overvoltage
comparator to eliminate runaway output voltage due to load removal,
input undervoltage lockout with hysteresis, cyclebycycle current
limiting, multiplier output clamp that limits maximum peak switch
current, an RS latch for single pulse metering, and a drive output high
state clamp for MOSFET gate protection. These devices are
available in dualinline and surface mount plastic packages.
Features
" Overvoltage Comparator Eliminates Runaway Output Voltage
" Internal Startup Timer
" One Quadrant Multiplier
" Zero Current Detector
" Trimmed 2% Internal Bandgap Reference
" Totem Pole Output with High State Clamp
" Undervoltage Lockout with 6.0 V of Hysteresis
" Low Startup and Operating Current
" Supersedes Functionality of SG3561 and TDA4817
" These are PbFree and HalideFree Devices
Figure 1. Simplified Block Diagram
Voltage
Feedback
Input
Multiplier,
Latch,
PWM,
Timer,
&
Logic
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
V
CC
Current Sense
Input
Overvoltage
Comparator
+
1.08 V
ref
+
V
ref
Quickstart
POWER FACTOR
CONTROLLERS
PIN CONNECTIONS
SOIC8
D SUFFIX
CASE 751
8
1
8
1
PDIP8
P SUFFIX
CASE 626
Voltage Feedback
Input
1
2
3
4
8
7
6
5
(Top View)
Compensation
Multiplier Input
Current Sense
Input
V
CC
Drive Output
GND
Zero Current
Detect Input
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 17 of this data sheet.
ORDERING INFORMATION
x
= 3 or 4
A
= Assembly Location
WL, L    = Wafer Lot
YY, Y    = Year
WW, W  = Work Week
G
= PbFree Package
G
= PbFree Package
MARKING
DIAGRAMS
MC3x262P
AWL
YYWWG
1
8
3x262
ALYW
G
1
8
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參數(shù)描述
MC34262PG 功能描述:功率因數(shù)校正 IC Critical Mode PFC w/OVP RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
MC34262PG 制造商:ON Semiconductor 功能描述:Power Supply IC
MC34268D 功能描述:低壓差穩(wěn)壓器 - LDO 2.85V 800mA SCSI-2 RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
MC34268DG 功能描述:低壓差穩(wěn)壓器 - LDO 2.85V 800mA SCSI-3 Active Terminator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
MC34268DR2 功能描述:低壓差穩(wěn)壓器 - LDO 2.85V 800mA SCSI-4 RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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