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参数资料
| 型号： | FAN400ATY |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBK ISO PWM 6SSOT |
| 标准包装： | 1 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 70kHz |
| 占空比： | 78% |
| 电源电压： | 8 V ~ 22.7 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： | 是 |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 包装： | 标准包装 |
| 产品目录页面： | 1221 (CN2011-ZH PDF) |
| 其它名称： | FAN400ATYDKR FAN400ATYDKR-ND FAN400ATYFSDKR |
October 2008
FAN400A — Low-Power Green-Mode PWM Flyback Power
Controller without Secondary Feedback
Features
Linearly Decreasing PWM Frequency
Green Mode Under Light-Load and Zero-Load
Conditions
Constant Voltage (CV) and Constant Current (CC)
No Secondary Feedback
Low Startup Current: 8 μ A
Low Operating Current: 3.6mA
Leading-Edge Blanking
Constant Power Limit
Universal AC Input Range
Synchronized Slope Compensation
140 ° C OTP Sensor with Hysteresis
V DD Over-Voltage Clamping
Cycle-by-Cycle Current Limiting
Under-Voltage Lockout (UVLO)
Fixed PWM Frequency with Hopping
Gate Output Maximum Voltage Clamped at 17V
Small SSOT-6 Package
Applications
General-purpose, switching mode, power supplies and
flyback power converters, such as:
Battery Chargers for Cellular Phones, Cordless
Phones, PDAs, Digital Cameras, Power Tools
Power Adapters for Ink Jet Printers, Video Game
Consoles, Portable Audio Players
Open-Frame SMPS for TV/DVD Standby and
Auxiliary Supplies, Home Appliances, Consumer
Electronics
Replacement for Linear Transformers and RCC SMPS
PC 5V Standby Power
Ordering Information
Description
This highly integrated PWM controller provides several
features to enhance the performance of low-power
flyback converters. To minimize standby power
consumption, a proprietary green-mode function
provides off-time modulation to linearly decrease the
switching frequency under light-load and zero-load
conditions. This green mode enables the power supply
to meet international power conservation requirements.
The supply voltage V DD is also used for feedback
compensation, to regulate the output voltage without
requiring a conventional TL431 and a photo-coupler.
Another advantage of the FAN400A is that the typical
startup current is only 8 μ A, while the typical operating
current can be as low as 3.6mA. A large startup
resistance can be used to achieve even higher power
conversion efficiency.
FAN400A integrates a frequency hopping function
internally to reduce EMI emissions with minimum line
filters. Built-in synchronized slope compensation
maintains the stability of peak current-mode control.
Proprietary internal compensation ensures constant
output power limiting over a universal range of AC input
voltages, from 90V AC to 264V AC .
The FAN400A provides many protection functions.
Pulse-by-pulse current limiting ensures constant output
current, even if a short circuit occurs. The internal
protection circuit disables PWM output if V DD exceeds
22.7V. The gate output is clamped at 17V to protect the
power MOS from over-voltage damage. The built-in
over-temperature protection (OTP) function shuts down
the controller at 140 ° C with a 30 ° C hysteresis.
The FAN400A is designed to provide a low-cost total
solution for flyback converters. It is available in a small-
footprint, 6-pin, SSOT-6 package.
Related Resources
AN-400A Low-Power Green-Mode PWM Flyback
Power Controller without Secondary Feedback
Part Number
FAN400ATY
FAN400ANY
Operating Temperature Range
-40 ° C to +105 ° C
-40 ° C to +105 ° C
Package
SSOT-6
DIP-8
Eco Status
Green
Green
Packing Method
Tape & Reel
Tube
For Fairchild’s definition of “green” please visit: http://www.fairchildsemi.com/company/green/rohs_green.html .
? 2008 Fairchild Semiconductor Corporation
FAN400A Rev. 1.0.2
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN400ATZ | 功能描述:开关变换器、稳压器与控制器 Low-Power Green-Mode PWM Flyback Pwr Cont RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| FAN400C | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Low-Power, Green-Mode, PWM Flyback Power Controller without Secondary Feedback (CC) |
| FAN400CNY | 功能描述:IC REG CTRLR FLYBK ISO PWM 8-DIP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:100% 电源电压:8.2 V ~ 30 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:是 工作温度:0°C ~ 70°C 封装/外壳:8-DIP（0.300"，7.62mm） 包装:管件 产品目录页面:1316 (CN2011-ZH PDF) |
| FAN400CTY | 功能描述:开关变换器、稳压器与控制器 30V 70kHz Low-Pwr Grn-Mode PWM Cont. RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| FAN4010 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:High-Side Current Sensor |
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