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参数资料
| 型号： | FAN6300AMY |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 4/14页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBK ISO PWM 8SOIC |
| 标准包装： | 1 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 100kHz |
| 电源电压： | 8 V ~ 25 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 ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 标准包装 |
| 其它名称： | FAN6300AMYDKR |
Pin Configuration
Figure 4. Pin Configuration
Pin Definitions
Pin #
1
2
3
4
5
6
7
8
Name
DET
FB
CS
GND
GATE
VDD
NC
HV
Description
This pin is connected to an auxiliary winding of the transformer via resistors of the divider for
the following purposes:
- Generates a ZCD signal once the secondary-side switching current falls to zero.
- Produces an offset voltage to compensate the threshold voltage of the peak current limit to
provide a constant power limit. The offset is generated in accordance with the input voltage
when PWM signal is enabled.
- Detects the valley voltage of the switching waveform to achieve the valley voltage switching
and minimize the switching losses.
A voltage comparator and a 2.5 V reference voltage develop a output OVP protection. The ratio
of the divider decides what output voltage to stop gate, as an optical coupler and secondary
shunt regulator are used.
The feedback pin should to be connected to the output of the error amplifier for achieving the
voltage control loop. The FB should be connected to the output of the optical coupler if the
error-amplifier is equipped at the secondary-side of the power converter.
For the primary-side control application, FB is applied to connect a RC network to the ground
for feedback-loop compensation.
The input impedance of this pin is a 5 k ? equivalent resistance. A 1/3 attenuator connected
between the FB and the PWM circuit is used for the loop-gain attenuation. FAN6300A/H
performs an open-loop protection once the FB voltage is higher than a threshold voltage
(around 4.2 V) more than 55 ms.
Input to the comparator of the over-current protection. A resistor senses the switching current
and the resulting voltage is applied to this pin for the cycle-by-cycle current limit.
The power ground and signal ground. A 0.1 μF decoupling capacitor placed between VDD and
GND is recommended.
Totem-pole output generates the PWM signal to drive the external power MOSFET. The
clamped gate output voltage is 18 V.
Power supply. The threshold voltages for startup and turn-off are 16 V and 10 V, respectively.
The startup current is less than 20 μA and the operating current is lower than 4.5 mA.
No connect
High-voltage startup.
? 2009 Fairchild Semiconductor Corporation
FAN6300A / FAN6300H ? Rev. 1.0.2
4
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN6300ANY | 功能描述:电流型 PWM 控制器 HI-INTEGRD QUASI-RES CURR 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 |
| FAN6300DY | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN6300DZ | 功能描述:电流型 PWM 控制器 Quasi-Resonant Crnt. Mode PWM Cont. 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 |
| FAN6300H | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Highly Integrated Quasi-Resonant Current Mode PWM Controller |
| FAN6300HMY | 功能描述:开关变换器、稳压器与控制器 Hi-Int QuasiResonant Curr 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 |
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