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| 型号： | NCP1378DR2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBACK PWM 8-SOIC |
| 产品变化通告： | LTB Notification 03/Jan/2008 |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 100kHz |
| 电源电压： | 8.2 V ~ 18 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： | 带卷 (TR) |
| 其它名称： | NCP1378DR2OS |
NCP1378
PWM Current-- Mode
Controller for Free-- Running
Quasi-- Resonant Operation
The NCP1378 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
DIAGRAMS
power demand falls below a predetermined level. As this happens at
low peak current, no audible noise can be heard. 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.
8
1
SOIC-- 8
D SUFFIX
CASE 751
8
1
1378
ALYW
G
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 NCP1378 also features an efficient protective circuitry that, in
presence of an overcurrent condition, disables the output pulses and
enters a safe burst mode, trying to restart. Once the default has gone,
8
1
PDIP-- 7
P SUFFIX
CASE 626B
1
1378P
AWL
YYWWG
the device auto-- recovers. Finally an internal 1.0 ms Soft-- Start
eliminates the traditional startup stress.
The NCP1378 is tailored for low voltage applications having
UVLO thresholds of 8.4 V (on) and 7.5 V (off).
Features
A
L, WL
Y, YY
W, WW
G or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb--Free Package
?
?
Free-- Running Borderline/Critical Mode Quasi-- Resonant Operation
Latched Overvoltage Protection
PIN CONNECTIONS
?
?
?
?
?
?
?
Auto-- Recovery Short-- Circuit Protection Via UVLO Crossover
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
External Latch Triggering, e.g. Via Overtemperature Signal
Dmg 1
FB 2
CS 3
GND 4
(Top View)
8 HV
6 V CC
5 Drv
?
?
?
Direct Optocoupler Connection
SPICE Models Available for TRANsient Analysis
Internal 8.0 m s Minimum T OFF
ORDERING INFORMATION
Device Package Shipping ?
? These are Pb-- Free Devices*
Typical Applications
? Battery-- Based Operations
NCP1378DR2G
NCP1378PG
SOIC--8
(Pb--Free)
PDIP--7
(Pb--Free)
2500 Tape & Reel
50 Units/Rail
*For additional information on our Pb--Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques Reference
Manual, SOLDERRM/D.
?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.
? Semiconductor Components Industries, LLC, 2010
December, 2010 - Rev. 7
1
Publication Order Number:
NCP1378/D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1378DR2G | 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 |
| NCP1378P | 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 |
| NCP1378PG | 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 |
| NCP1379 | 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 |
| NCP1379_11 | 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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