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参数资料
| 型号： | FAN6747LMY |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 3/15页 |
| 文件大小： | 0K |
| 描述： | IC PWM CTLR GREEN MODE 8-SOIC |
| 标准包装： | 1 |
| 输出隔离： | 隔离 |
| 频率范围： | 61kHz ~ 69kHz |
| 输入电压： | 10 V ~ 24 V |
| 输出电压： | 14V |
| 功率（瓦特）： | 400mW |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 标准包装 |
| 其它名称： | FAN6747LMYDKR |
Marking Information
: Fairchild Logo
Z: Plant Code
X: Year Code
ZXYTT
6747F
TPM
Y: Week Code
TT: Die Run Code
F: L = OCP latch
T : Package Type (N =DIP, M = SOP)
P: Y = Green Compound
M: Manufacturing Flow Code
Figure 3. Top Mark
Pin Configuration
Figure 4. Pin Assignments
Pin Definitions
Pin #
1
2
3
4
5
6
7
8
Name
GND
FB
NC
HV
RT
SENSE
VDD
GATE
Description
Ground . This pin is used for the ground potential of all the pins. A 0.1μF decoupling capacitor
placed between VDD and GND is recommended.
Feedback . The output voltage feedback information from the external compensation circuit is fed
into this pin. The PWM duty cycle is determined from this pin and the current-sense signal from
Pin 6.
No Connection .
High-Voltage Startup . This pin is connected to the line input via diodes and resistors to achieve
brownout and high/low line compensation. Once the voltage of the HV pin is lower than the
brownout voltage, PWM output is turned off. High/low line compensation dominates the OCP
level and cycle-by-cycle current limit, to solves the unequal OCP level and power limit problem
under universal input.
Over-Temperature Protection . For over-temperature protection, an external NTC thermistor is
connected from this pin to GND. The impedance of the NTC decreases at high temperatures.
Once the voltage of the RT pin drops below the threshold voltage, the controller latches off the
PWM. If the RT pin is not connected to the NTC resistor for over temperature protection, it is
recommended to connect one 100K Ω resistor to ground to prevent noise interference. This pin is
limited by internal clamping circuit.
Current Sense . This pin is used to sense the MOSFET current for the current mode PWM and
OCP. If the switching current is higher than OCP threshold and lasts 220ms, the controller
latches off the PWM.
Supply Voltage . IC operating current and MOSFET driving current are supplied using this pin.
This pin is connected to an external bulk capacitor of typically 10μF. The threshold voltages for
startup and turn-off are 16.5V and 9V, respectively. The operating current is lower than 2mA.
Gate Driver Output . The totem-pole output driver for the power MOSFET. It is internally
clamped below 14V.
? 2010 Fairchild Semiconductor Corporation
FAN6747 ? Rev. 1.0.3
3
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN6747WALMY | 功能描述:电流型 PWM 控制器 Highly Integrated Grn Mode PWM Cntrlr 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 |
| FAN6747WLMY | 功能描述:电流型 PWM 控制器 30V 2mA 22KHz 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 |
| FAN6749MLM | 功能描述:电流型 PWM 控制器 Ultra Green-Mode PWM Controller 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 |
| FAN6751 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Highly Integrated Green-Mode PWM Controller |
| FAN6751HLMY | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Highly Integrated Green-Mode PWM Controller |
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