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参数资料
| 型号： | SG6742HLSZ |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 3/13页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM GREEN CM OVP 8SOP |
| 标准包装： | 1 |
| 输出隔离： | 隔离 |
| 频率范围： | 90kHz ~ 110kHz |
| 输入电压： | 10.5 V ~ 22 V |
| 输出电压： | 18V |
| 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-SOP |
| 包装： | 标准包装 |
| 其它名称： | SG6742HLSZDKR |
Marking Information
F - Fairchild Logo
Z - Plant Code
X - 1-Digit Year Code
ZXYTT
6742HR
TPM
ZXYTT
6742HL
TPM
Y - 1-Digit Week Code
TT - 2-Digit Die Run Code
T - Package Type (S=SOP)
P - Y: Green Package
M - Manufacture Flow Code
Figure 3. Top Mark
Pin Configuration
SOP-8
GND
FB
NC
HV
1
2
3
4
8
7
6
5
GATE
VDD
SENSE
RT
Figure 4. Pin Configuration (Top View)
Pin Definitions
Pin #
1
2
3
4
5
6
7
8
Name
GND
FB
NC
HV
RT
SENSE
VDD
GATE
Description
Ground.
The signal from the external compensation circuit is fed into this pin. The PWM duty cycle is
determined in response to the signal on this pin and the current-sense signal on the SENSE pin.
No connection.
For startup, this pin is pulled high to the line input or bulk capacitor via resistors.
For over-temperature protection, an external NTC thermistor is connected from this pin to the
GND pin. The impedance of the NTC decreases at high temperatures. Once the voltage of the
RT pin drops below a fixed limit, PWM output is latched.
Current sense. The sensed voltage is used for peak-current-mode control and cycle-by-cycle
current limiting.
Power supply. The internal protection circuit disables PWM output as long as V DD exceeds the
OVP trigger point.
The totem-pole output driver. Soft driving waveform is implemented for improved EMI.
? 2008 Fairchild Semiconductor Corporation
SG6742HL/HR ? Rev. 1.0.4
3
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SG6742HR | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Highly Integrated Green-Mode PWM Controller |
| SG6742HR_HL | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Highly Integrated Green-Mode PWM Controller |
| SG6742HRSY | 功能描述:电流型 PWM 控制器 Current Mode PWM Controller 18V 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 |
| SG6742HRSZ | 功能描述:电流型 PWM 控制器 BiCMOS Green-Mode PWM Controll 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 |
| SG6742ML | 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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