参数资料
| 型号： | NCP1308DR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBACK PWM 8-SOIC |
| 标准包装： | 1 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 75kHz |
| 电源电压： | 11 V ~ 20 V |
| 降压： | 无 |
| 升压： | 无 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP1308DR2GOSCT |
NCP1308
PWM Current-Mode
Controller for Free-Running
Quasi-Resonant Operation
The NCP1308 combines a true current mode modulator and a
demagnetization detector to ensure full borderline/Critical
Conduction Mode in any load/line conditions and minimum drain
voltage switching (Quasi-Resonant operation). Due to its inherent
skip cycle capability, the controller enters burst mode as soon as the
http://onsemi.com
MARKING
power demand falls below a predetermined level. As this happens at
low peak current, no audible noise can be heard. An internal 10 m s
timer prevents the free-run frequency to exceed a high frequency
(therefore below the 150 kHz CISPR-22 EMI starting limit), while
the skip adjustment capability lets the user select the frequency at
which the burst foldback takes place.
The Dynamic Self-Supply (DSS) drastically simplifies the
transformer design in avoiding the use of an auxiliary winding to
supply the NCP1308. This feature is particularly useful in
applications where the output voltage varies during operation (e.g.
battery chargers). Thanks to its high-voltage technology, the IC is
directly connected to the high-voltage DC rail. As a result, the
8
1
SOIC-8
D SUFFIX
CASE 751
A
L
Y
W
G
DIAGRAM
8
N1308
ALYW
G
1
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb-Free Package
short-circuit trip point is not dependent upon any V CC auxiliary
level.
The transformer core reset detection is done through an auxiliary
PIN CONNECTIONS
winding which, brought via a dedicated pin. If an OVP is detected on
the V CC pin, the IC permanently latches off.
Finally, the continuous feedback signal monitoring implemented
with an Overcurrent fault Protection circuitry (OCP) makes the final
design rugged and reliable.
Dmg 1
FB 2
CS 3
GND 4
8 HV
7
6 V CC
5 Drv
Features
? Free-Running Borderline/Critical Mode Quasi-Resonant Operation
? Current-Mode with Adjustable Skip Cycle Capability
? Dynamic Self-Supply Type of V CC
? Auto-Recovery Overcurrent Protection
? Improved UVLO for V CC below 10 V
? Latching Overvoltage Protection on V CC
? 500 mA Peak Current Source/Sink Capability
? Internal 1.0 ms Soft-Start
? Internal 10 m s Minimum T OFF
? Adjustable Skip Level
? Internal Temperature Shutdown
? Internal Leading Edge Blanking
? Direct Optocoupler Connection
? SPICE Models Available for TRANsient Analysis
? This is a Pb-Free Device
Typical Applications
(Top View)
ORDERING INFORMATION
Device Package Shipping ?
NCP1308DR2G SOIC-8 2500/Tape & Reel
(Pb-Free)
?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.
?
?
?
?
AC-DC Adapters for Notebooks, etc.
Offline Battery Chargers
Consumer Electronics (DVD Players, Set-Top Boxes, TVs, etc.)
Auxiliary Power Supplies (USB, Appliances, TVs, etc.)
? Semiconductor Components Industries, LLC, 2007
June, 2007 - Rev. 3
1
Publication Order Number:
NCP1308/D
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| NCP1377BP | IC CTRLR PWM CM OVP UVLO 8DIP |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1316 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| NCP1336 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Quasi-Resonant Current Mode Controller for High Power Universal Off-Line Supplies |
| NCP1336A | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Quasi-Resonant Current Mode Controller for High Power Universal Off-Line Supplies |
| NCP1336ADR2G | 功能描述:电流型 PWM 控制器 QUASI-RES CUR MODE CONTRL RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| NCP1336B | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Quasi-Resonant Current Mode Controller for High Power Universal Off-Line Supplies |
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