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參數(shù)資料
| 型號： | NCP4326 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Secondary Controller for Multi-Output Quasi-Resonant Switchmode Power Supplies(開關(guān)模式，變壓器次極多路輸出控制器) |
| 中文描述： | 第二個(gè)控制器的多輸出準(zhǔn)諧振開關(guān)模式電源（開關(guān)模式，變壓器次極多路輸出控制器） |
| 文件頁數(shù)： | 1/30頁 |
| 文件大小： | 423K |
| 代理商： | NCP4326 |
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Semiconductor Components Industries, LLC, 2005
September, 2005 Rev. 1
1
Publication Order Number:
NCP4326/D
NCP4326
Secondary Controller for
MultiOutput
QuasiResonant
Switchmode Power
Supplies
This secondary controller significantly improves the overall
efficiency and crossregulation figures when used in a Switchmode
Power Supply. Compared to traditional regulation schemes, the
NCP4326 provides superior performance in crossregulation by
individually regulating outputs. Powered from a main winding, the
device actuates two independent switches that precisely adjust the
considered outputs to resistorselectable voltages. This controller also
integrates a precision reference voltage, which together with a
dedicated operational amplifier reduces the feedback loop elements to
the minimum. In the end three independent output voltages can be
controlled by a single device.
A skip cycle feature improves the stand by power in light load
condition. Finally, dedicated shutdown pins offer an easy mean to
disable the secondary outputs in applications where a low standby
power performance is key.
Features
0% to 100% Duty Cycle Range
Integrated Shunt Regulator for Optocoupler Control
Internal Voltage Reference (1.25 V, 1% @ 25
°
C)
2 Independent Power MOSFET Drivers
Enable/Disable for Each Driver
Independent SoftStarts on both Output Drivers
Independent Skip Cycle on both Output Drivers
Standby Pin
580 / 650 mA Peak Current Source/Sink Driver Capability
Synchronization Pin
5 V Undervoltage LockOut on Vcc
PbFree Package is Available
Applications
Consumer Electronics Applications:
DVD, Set Top Box, CDR, Game Console
Any MultiOutput Voltage QuasiResonant SMPS
http://onsemi.com
MARKING DIAGRAM
SOIC16
D SUFFIX
CASE 751B
NCP4326DG
AWLYWW
1
A
WL = Wafer Lot
Y
= Year
WW = Work Week
G
= PbFree Device
= Assembly Location
(Bottom View)
Device
Package
Shipping
ORDERING INFORMATION
NCP4326DR2
3000 Tape & Reel
SOIC16
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
PIN CONNECTIONS
CP1
FB1
EN2
CP2
FB2
Ct
Sync
CPm
EN1
GND
Flux
DRV1
Vcc
DRV2
STBY
FBm
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NCP4326DR2G
3000 Tape & Reel
SOIC16
(PbFree)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP4326DR2 | 功能描述:初級與次級側(cè) PWM 控制器 Quasi Resonant RoHS:否 制造商:ON Semiconductor 輸出端數(shù)量:1 開關(guān)頻率:250 KHz 工作電源電壓:- 0.3 V to + 28 V 最大工作溫度:+ 85 C 最小工作溫度:- 5 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Reel |
| NCP4326DR2G | 功能描述:初級與次級側(cè) PWM 控制器 Quasi Resonant Secondary Side RoHS:否 制造商:ON Semiconductor 輸出端數(shù)量:1 開關(guān)頻率:250 KHz 工作電源電壓:- 0.3 V to + 28 V 最大工作溫度:+ 85 C 最小工作溫度:- 5 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Reel |
| NCP4328 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Secondary Side CV/CC Controller |
| NCP4328BSNT1G | 制造商:ON Semiconductor 功能描述:REEL / SECONDARY SIDE CONSTANT V |
| NCP432B | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Programmable Precision References |
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