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参数资料
| 型号： | MAX6519UKP045+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 7/10页 |
| 文件大小： | 0K |
| 描述： | IC TEMP SENSOR SW SOT23-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 温度开关 |
| 传感器类型： | 内部 |
| 感应温度： | 45°C 分界点 |
| 精确度： | ±3°C（最小值） |
| 拓扑： | 比较器，电压基准 |
| 输出类型： | 低态有效/开漏极 |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
Low-Cost, 2.7V to 5.5V, Analog Temperature
Sensor Switches in a SOT23
? Calculate the temperature using the formula:
Thermal Considerations
The MAX6516–MAX6519 supply current is typically 22μA.
T =
1.8015 ? V OUT
0 . 01062
+ 30
When used to drive high-impedance loads, the devices
dissipate negligible power. Therefore, the die tempera-
ture is essentially the same as the package temperature.
T = + 30
? Verify that the temperature measured is within ±2°C
of the ambient board temperature. Measure the
ambient board temperature using an accurate cali-
brated temperature sensor.
? Connect OUT to ground (OUT to V CC for cold
threshold versions) and observe the state change of
the logic output.
? Disconnect OUT from ground and observe that the
logic output reverts to its initial state.
Hysteresis Testing
The MAX6516–MAX6519 can be programmed with 2°C
or 10°C of hysteresis by pin strapping HYST to V CC or
GND, respectively. Below is a test feature that can be
used to measure the accuracy of the device’s hystere-
sis using a device with a +65°C threshold:
? Power up the device and observe the state of the
digital output.
? Drive the OUT voltage down gradually.
? When the digital output changes state, note V OUT .
? V OUT trip = V OUT at logic output change of state
(high to low or low to high).
? Calculate trip temperature (T1) using:
1.8015 ? V OUT
0 . 01062
? Gradually raise V OUT until the digital output reverts to
its initial state and note V OUT .
? Calculate trip temperature (T2).
? T HYST = T2 - T1.
Accurate temperature monitoring depends on the thermal
resistance between the device being monitored and the
MAX6516–MAX6519 die. Heat flows in and out of plastic
packages, primarily through the leads. Pin 2 of the 5-pin
SOT23 package provides the lowest thermal resistance to
the die. Short, wide copper traces between the
MAX6516–MAX6519 and the object whose temperature
is being monitored ensures heat transfers occur quickly
and reliably. The rise in die temperature due to self-heat-
ing is given by the following formula:
Δ T J = P DISSIPATION ? θ JA
where P DISSIPATION is the power dissipated by the
MAX6516–MAX6519, and θ JA is the thermal resistance
of the package.
The typical thermal resistance is 140°C/W for the
5-pin SOT23 package. To limit the effects of self-
heating, minimize the output current. For example, if the
MAX6516–MAX6519 sink 1mA, the open-drain output
voltage is guaranteed to be less than 0.3V. Therefore,
an additional 0.3mW of power is dissipated within the
IC. This corresponds to a 0.042°C shift in the die tem-
perature in the 5-pin SOT23 package.
Chip Information
PROCESS: BiCMOS
_______________________________________________________________________________________
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6519UKP055+ | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR ANLG 5PIN SOT-23 - Cut Tape Product |
| MAX6519UKP055+T | 功能描述:板上安装温度传感器 2.7V to 5.5V Temperature Switch 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 |
| MAX6519UKP055-T | 功能描述:板上安装温度传感器 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 |
| MAX6519UKP065 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6519UKP065+ | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR ANLG 5PIN SOT-23 - Cut Tape Product |
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