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参数资料
| 型号： | SG6859ADZ |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 4/13页 |
| 文件大小： | 0K |
| 描述： | IC PWM FLYBACK ISOLATED CM 8-DIP |
| 标准包装： | 59 |
| 输出隔离： | * |
| 频率范围： | * |
| 输入电压： | * |
| 输出电压： | * |
| 功率（瓦特）： | * |
| 工作温度： | * |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | * |
| 包装： | 管件 |
Pin Configurations
Figure 4. SSOT-6 Pin Configuration
Pin Definitions
Figure 5. DIP-8 Pin Configuration
DIP
Pin #
1
2
3
SSOT
Pin #
6
5
Name
GATE
VDD
NC
Description
The totem-pole output driver for driving the power MOSFET.
Power supply
No connection
Current sense. This pin senses the voltage across a resistor. When the voltage
4
4
SENSE
reaches the internal threshold, PWM output is disabled. This activates over-current
protection. This pin also provides current amplitude information for current-mode
control.
A resistor connected from the RI pin to ground generates a constant current source
used to charge an internal capacitor and determine the switching frequency.
5
3
RI
Increasing the resistance reduces the amplitude of the current source and the
switching frequency. A 95k ? resistor R I results in a 50 μ A constant current I I and a
70kHz switching frequency.
6
NC
No connection
Feedback. The FB pin provides the output voltage regulation signal. It provides
7
2
FB
feedback to the internal PWM comparator, so that the PWM comparator can control
the duty cycle.
8
1
GND
Ground
? 2007 Fairchild Semiconductor Corporation
SG6859A ? Rev. 1.0.4
4
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SG6859AT | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| SG6859ATY | 功能描述:开关变换器、稳压器与控制器 Low-Cost Green-Mode PWM Controller 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 |
| SG6859ATZ | 功能描述:电流型 PWM 控制器 Highly-Integrated Green-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 |
| SG6859DDY | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| SG6859DTY | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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