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| 型号： | TC622EPA |
| 厂商： | Microchip Technology |
| 文件页数： | 6/14页 |
| 文件大小： | 0K |
| 描述： | IC TEMP SNSR PROG 5V 8DIP |
| 标准包装： | 60 |
| 感应温度： | -40°C ~ 85°C |
| 输出类型： | 高态有效，低态有效 |
| 电源电压： | 4.5 V ~ 18 V |
| 精确度： | ±1°C |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
| 产品目录页面： | 682 (CN2011-ZH PDF) |
TC622/TC624
4.0
TYPICAL APPLICATIONS
4.2
Cooling and Heating Applications
4.1
Over-Temperature Shutdown
The TC622/TC624 can be used to control a DC fan as
shown in Figure 4-2. The fan turns on when the sensed
The TC622 can be used to create a simple over-tem-
perature shutdown circuit. In this circuit, temperature is
sensed within the system enclosure (internal system
ambient) or at the heatsink itself. When measured
temperature exceeds a preset limit, a fault is indicated
and the system shuts down.
Figure 4-1 illustrates an over-temperature shutdown
circuit using the TC622 sensor in a single TO-220
package, allowing direct attachment to the heatsink
surface. As shown, the TC622 outputs are driven active
when the heatsink temperature equals the trip point
temperature set by R TRIP . When this happens, the
crowbar circuit is activated, causing the supply output
to fold back to zero. The TC622 outputs remain active
until the heatsink temperature falls a minimum of 2°C
(built-in hysteresis) below the trip point temperature, at
which time the device again allows normal supply
operation.
Heatsink
temperature rises above T SET and remains on until the
temperature falls below T SET - 2°C.
Figure 4-3 shows the TC622 acting as a heater
thermostat. Circuit operation is identical to that of the
cooling fan application.
Output
Device
TC622
V CC
Output Device
V OUT
Circuit Board
TC622 Heatsink Mounting
R TRIP
T SET
TC622
V DD
Power Good
Signal
GND
OUT
OUT
OVERTEMP
Crowbar
Circuit
Heatsink Surface
FIGURE 4-1:
DS21440C-page 6
TC622 Power Supply Over-Temperature Shutdown
? 2006 Microchip Technology Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC622VAT | 功能描述:板上安装温度传感器 Prog Solid-State RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| TC622VOA | 功能描述:板上安装温度传感器 Prog Solid-State RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| TC622VOA713 | 功能描述:板上安装温度传感器 Prog Solid-State RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| TC622VPA | 功能描述:板上安装温度传感器 Prog Solid-State RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| TC623 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:3V, Dual Trip Point Temperature Sensor |
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