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| 型号： | FAN7532MX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC CONTROLLER BALLAST 16-SOIC |
| 标准包装： | 1 |
| 类型： | 镇流器控制器 |
| 频率： | 48 ~ 52 kHz |
| 电流 - 电源： | 6.4mA |
| 电流 - 输出： | 500mA |
| 电源电压： | 11 V ~ 15.6 V |
| 工作温度： | -25°C ~ 125°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 标准包装 |
| 产品目录页面： | 1216 (CN2011-ZH PDF) |
| 其它名称： | FAN7532MXDKR |
7. Protection Modes
The FAN7532 has two types of protection modes.
1) Over-Voltage Protection (OVP) Mode
The OVP pin is normally connected to the external
components that detect lamp voltage between a lamp’s
cathodes. This voltage is always maintained under 2V in
normal operation. If the lamp enters the end-lamp-life or
abnormal condition, the lamp does not turn-on even if
there is enough voltage supplied between two cathodes.
Normally, this condition means that one of the cathodes
VCC
15.6V
V UVLO+
V UVLO-
V CPH
5V
2.9V
FREQ
f PH
f OSC
is broken, deactivated, or the lamp is deeply blackened
around the cathodes. In this state, the ballast constantly
generates very high voltage between two cathodes to
ignite according to a specific procedure in the control IC.
When the voltage of OVP pin exceeds 2V, the IC
instantly enters the protection mode. To exit this mode,
the V CC must be recycled below the UVLO low
threshold.
OVP
V LAMP
Ignition fail
Ignition fail level
Preheating
Ignition Latched
UVLO
Preheating
Ignition Run
shutdown
Latched shutdown mode is removed
after VCC goes down to the UVLO-
Figure 18. Timing Diagram (OVP Mode)
FAN7532 Rev. 00
? 2006 Fairchild Semiconductor Corporation
FAN7532 Rev. 1.0.2
11
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN7535 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:PFC & Ballast Control IC |
| FAN7535M | 功能描述:功率因数校正 IC Half-bridge Gate RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| FAN7535MX | 功能描述:开关变换器、稳压器与控制器 Electronic Ballast PFC Combo IC 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 |
| FAN7544 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Simple Ballast Controller |
| FAN7544M | 功能描述:开关变换器、稳压器与控制器 Electronic Ballast 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 |
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