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| 型号： | NCP1377P |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM CM OVP UVLO 8DIP |
| 产品变化通告： | LTB Notification 03/Jan/2008 |
| 标准包装： | 50 |
| 输出隔离： | 隔离 |
| 频率范围： | 100kHz |
| 输入电压： | 8.2 V ~ 18 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-DIP（0.300"，7.62mm），7 引线 |
| 供应商设备封装： | 7-PDIP |
| 包装： | 管件 |
| 其它名称： | NCP1377POS |
NCP1377, NCP1377B
PWM Current-Mode
Controller for Free-Running
Quasi-Resonant Operation
The NCP1377 combines a true current mode modulator and a
demagnetization detector which ensures full borderline/critical
Conduction Mode in any load/line conditions together with
minimum drain voltage switching (Quasi ? Resonant operation). Due
to its inherent skip cycle capability, the controller enters burst mode
http://onsemi.com
MARKING DIAGRAMS
as soon as the power demand falls below a predetermined level. As
this happens at low peak current, no audible noise can be heard. For
NCP1377, an internal 8.0 m s timer prevents the free ? run frequency to
exceed 100 kHz (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. For
NC1377B, the internal timer duration is reduced to 3.0 m s to allow
operation at higher frequencies (up to 300 kHz).
The transformer core reset detection is done through an auxiliary
winding which, brought via a dedicated pin, also enables fast
Over Voltage Protection (OVP). Once an OVP has been detected, the
IC permanently latches off. The 1377 features a sampling time of
4.5 m s whereas it is 1.5 m s for the B version.
The NCP1377 also features an efficient protective circuitries
8
1
SOIC ? 8
DR SUFFIX
CASE 751
8
1
SOIC ? 7
D1 SUFFIX
CASE 751U
8
1
1377
ALYW
G
8
1
8
1
377D1
ALYW G
G
1377B
ALYW
G
which, in presence of an overcurrent condition, disables the output
8
pulses and enters a safe burst mode, trying to restart. Once the default
has gone, the device auto ? recovers. Finally an internal 1.0 ms
Soft ? Start eliminates the traditional startup stress.
Features
? Free ? Running Borderline/Critical Mode Quasi ? Resonant Operation
? Latched Overvoltage Protection
? Auto ? Recovery Short ? Circuit Protection Via UVLO Crossover
? External Latch Triggering, e.g. Via Overtemperature Signal
? Current ? Mode with Adjustable Skip Cycle Capability
? Internal 1.0 ms Soft ? Start
? Internal Temperature Shutdown
? Internal Leading Edge Blanking
? 500 mA Peak Current Source/Sink Capability
? Under Voltage Lockout Level of 12.5 V (On) and 7.5 V (Min)
? Direct Optocoupler Connection
? SPICE Models Available for TRANsient Analysis
? Internal Minimum T OFF
? These Devices are Pb ? Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
? 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.)
1377P 1377BP
AWL AWL
YYWWG YYWWG
1
PDIP ? 7 1 1
P SUFFIX
CASE 626B
A = Assembly Location
L, WL = Wafer Lot
Y, YY = Year
W, WW = Work Week
G or G = Pb ? Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
Dmg 1 8 HV
FB 2
CS 3 6 V CC
GND 4 5 Drv
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
? Semiconductor Components Industries, LLC, 2011
January, 2011 ? Rev. 11
1
Publication Order Number:
NCP1377/D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1377PG | 功能描述:电流型 PWM 控制器 Quasi Resonant Current Mode PWM 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 |
| NCP1378 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:PWM Current-Mode Controller for Free-Running Quasi-Resonant Operation |
| NCP1378/D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:PWM Current-Mode Controller for Free Running Quasi-Resonant Operation |
| NCP1378_06 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:PWM Current−Mode Controller for Free−Running Quasi−Resonant Operation |
| NCP1378DR2 | 功能描述:电流型 PWM 控制器 Quasi Resonant 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 |
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