- 您现在的位置：买卖IC网 > PDF目录22206 > NCP1653DR2 (ON Semiconductor)IC CTRLR PFC CURRENT MODE 8SOIC PDF资料下载
参数资料
| 型号： | NCP1653DR2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 15/19页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PFC CURRENT MODE 8SOIC |
| 产品变化通告： | LTB Notification 03/Jan/2008 |
| 标准包装： | 1 |
| 模式： | 连续导电（CCM） |
| 频率 - 开关： | 90kHz ~ 110kHz |
| 电源电压： | 8.75 V ~ 18 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP1653DR2OSCT |
NCP1653, NCP1653A
V in
C2
V CC
C1
V out
V CC Undervoltage Lockout (UVLO)
The device typically starts to operate when the supply
voltage V CC exceeds 13.25 V. It turns off when the supply
voltage V CC goes below 8.7 V. An 18 V internal ESD Zener
Diode is connected to the V CC pin (Pin 8) to prevent
excessive supply voltage. After startup, the operating range
is between 8.7 V and 18 V.
Thermal Shutdown
An internal thermal circuitry disables the circuit gate
drive and then keeps the power switch off when the junction
Figure 40. Self ? biasing Scheme in Constant Output
Voltage Mode
When the NCP1653 circuit is required to be startup
independently from the second ? stage converter, it is
recommended to use a circuit in Figure 41. When there is
no feedback current (I FB = 0 m A) applied to FB pin (Pin 1),
the NCP1653 V CC startup current is as low (50 m A
maximum). It is good for saving the current to charge the
V CC capacitor. However, when there is some feedback
current the startup current rises to as high as 1.5 mA in the
V CC < 4 V region. That is why the circuit of Figure 41 can
be implemented: a PNP bipolar transistor derives the
feedback current to ground at low V CC levels (V CC < 4 V)
so that the startup current keeps low and an initial voltage
can be quickly built up in the V CC capacitor. The values in
Figure 41 are just for reference.
temperature exceeds 150 _ C. The output stage is then
enabled once the temperature drops below typically 120 _ C
(i.e., 30 _ C hysteresis). The thermal shutdown is provided
to prevent possible device failures that could result from an
accidental overheating.
Output Drive
The output stage of the device is designed for direct drive
of power MOSFET. It is capable of up to ± 1.5 A peak drive
current and has a typical rise and fall time of 88 and
61.5 ns with a 2.2 nF load.
Input
180k
180k
180k
1.5M
Output
100uF
560k
BC556
NCP1653
Figure 41. Recommended Startup Biasing Scheme
http://onsemi.com
15
相关PDF资料 |
PDF描述 |
|---|---|
| RSC31DRYH-S93 | CONN EDGECARD 62POS DIP .100 SLD |
| VE-J1L-IZ | CONVERTER MOD DC/DC 28V 25W |
| VE-J0Z-IZ | CONVERTER MOD DC/DC 2V 10W |
| NCP1603D100R2 | IC CTRLR PFC/PWM HV START 16SOIC |
| RAC03-12SC | CONV AC/DC 3W 12V OUT SGL T/H |
相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1653DR2G | 功能描述:功率因数校正 IC Fixed Frequency Current Mode PFC RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| NCP1653EVB | 功能描述:BOARD EVAL FOR NCP1653 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PCI Express® (PCIe) 主要目的:接口，收发器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要属性:- 次要属性:- 已供物品:板 |
| NCP1653GEVB | 制造商:ON Semiconductor 功能描述:NCP1653 PFC CCM STEP-UP - Bulk 制造商:ON Semiconductor 功能描述:BOARD EVAL FOR NCP1653 |
| NCP1653P | 功能描述:功率因数校正 IC Fixed Frequency RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| NCP1653PG | 功能描述:功率因数校正 IC Fixed Frequency Current Mode PFC RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。