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參數資料
| 型號： | MC33368 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | High Voltage GreenLine Power Factor Controller |
| 中文描述： | 高壓二七二三六七六七功率因數控制器 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 476K |
| 代理商： | MC33368 |
Semiconductor Components Industries, LLC, 2000
April, 2000 – Rev. 4
1
Publication Order Number:
MC33368/D
The MC33368 is an active power factor controller that functions as a
boost preconverter in off–line power supply applications. MC33368 is
optimized for low power, high density power supplies requiring a
minimum board area, reduced component count and low power
dissipation. The narrow body SOIC package provides a small
footprint. Integration of the high voltage startup saves approximately
0.7 W of power compared to resistor bootstrapped circuits.
The MC33368 features a watchdog timer to initiate output
switching, a one quadrant multiplier to force the line current to follow
the instantaneous line voltage a zero current detector to ensure critical
conduction operation, a transconductance error amplifier, a current
sensing comparator, a 5.0 V reference, an undervoltage lockout
(UVLO) circuit which monitors the VCC supply voltage and a CMOS
driver for driving MOSFETs. The MC33368 also includes a
programmable output switching frequency clamp. Protection features
include an output overvoltage comparator to minimize overshoot, a
restart delay timer and cycle–by–cycle current limiting.
Lossless Off–Line Startup
Output Overvoltage Comparator
Leading Edge Blanking (LEB) for Noise Immunity
Watchdog Timer to Initiate Switching
Restart Delay Timer
Device
Package
Shipping
ORDERING INFORMATION
MC33368D
SO–16
48 Units/Rail
MC33368P
DIP–16
DIP–16
P SUFFIX
CASE 648
1
16
http://onsemi.com
25 Units/Rail
SO–16
D SUFFIX
CASE 751K
1
16
MC33368DR2
SO–16
2500 Tape & Reel
MARKING
DIAGRAMS
16
A
WL
YY, Y = Year
WW
= Assembly Location
= Wafer Lot
= Work Week
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
(Top View)
5.0 Vref
Restart Delay
Voltage FB
Current Sense
Zero Current
AGnd
Line
N/C
N/C
LEB
PIN CONNECTIONS
Comp
Mult
Frequency Clamp
VCC
Gate
PGnd
1
2
3
4
5
6
7
8
16
13
12
11
10
9
(Top View)
5.0 Vref
Restart Delay
Voltage FB
Current Sense
Zero Current
AGnd
Line
LEB
Comp
Mult
Frequency Clamp
VCC
Gate
PGnd
S
D
1
16
MC33368P
AWLYYWW
1
MC33368D
AWLYWW
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| MC33368P | 50mA Switched-Cap DC/DC Converter 8-MSOP |
| MC33368DR2 | High Voltage GreenLine Power Factor Controller |
| MC33375ST-3.0T3 | LOW DROPOUT MICROPOWER VOLTAGE REGULATOR |
| MC33375 | LOW DROPOUT MICROPOWER VOLTAGE REGULATOR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC33368D | 功能描述:功率因數校正 IC High Voltage PFC RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| MC33368DG | 功能描述:功率因數校正 IC High Voltage PFC w/Critical Mode RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| MC33368DG | 制造商:ON Semiconductor 功能描述:DC/DC Converter (DC-DC) / Switching Regu |
| MC33368DR2 | 功能描述:功率因數校正 IC High Voltage PFC RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| MC33368DR2G | 功能描述:功率因數校正 IC High Voltage PFC w/Critical Mode RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
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