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| 型号： | MAX6626PMTT+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 12/14页 |
| 文件大小： | 421K |
| 描述： | IC TEMP SENSOR I2C 6-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 125°C |
| 精确度： | ±1°C（最小值） |
| 拓扑： | ADC，比较器，寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WDFN 裸露焊盘 |
| 供应商设备封装： | 6-TDFN 裸露焊盘（3x3） |
| 包装： | 标准包装 |
| 产品目录页面： | 1425 (CN2011-ZH PDF) |
| 其它名称： | MAX6626PMTT+TDKR |
MAX6625/MAX6626
9-Bit/12-Bit Temperature Sensors with
I
2
C-Compatible Serial Interface in a SOT23
12
Maxim Integrated
Example 1: If T
HIGH
is set to +100癈, T
LOW
is set to
+80癈, and the fault queue depth is set to four, OT
does not assert until four consecutive conversions
exceed +100癈. If the temperature is then read through
the I
2
C-compatible interface, OT deasserts. OT asserts
again when four consecutive conversions are less than
+80癈.
Example 2: If T
HIGH
is set to +100癈, T
LOW
is set to
+80癈, and the fault queue depth is set to four, OT
does not assert until four consecutive conversions
exceed +100癈. If the T
HIGH
register is then changed
to +120癈, OT deasserts and the IC looks for a new
T
HIGH
fault.
Shutdown
The MAX6625/MAX6626 offer a low-power shutdown
mode. Enter shutdown mode by programming the shut-
down bit of the control register high. In shutdown, the
temperature register is set to 8000h and the ADC is
turned off, reducing the device current draw to 1礎
(typ). After coming out of shutdown, the temperature
register continues to read 8000h until the first conver-
sion result appears. The fault queue is held in reset
during shutdown.
Thermal Considerations
The MAX6625/MAX6626 supply current is less than
1mA when the I
2
C-compatible interface is active. When
used to drive high-impedance loads, the devices dissi-
pate negligible power; therefore, the die temperature is
essentially the same as the package temperature. The
key to accurate temperature monitoring is good thermal
contact between the MAX6625/MAX6626 package and
the monitored device or circuit. In some applications,
the 6-pin SOT23 package may be small enough to fit
underneath a socketed 礟, allowing the device to moni-
tor the 礟s temperature directly. Heat flows in and out
of plastic packages primarily through the leads. Short,
wide copper traces leading to the temperature monitor
ensure that heat transfers quickly and reliably. The rise
in die temperature due to self-heating is given by the
following formula:
T
J
= P
D
?/DIV>
JA
where P
D
is the power dissipated by the MAX6625/
MAX6626, and ?/DIV>
JA
is the packages thermal resistance.
The typical thermal resistance is +110癈/W for the 6-
pin SOT23 package. To limit the effects of self-heating,
minimize the output currents. For example, if the
MAX6625/MAX6626 sink 4mA with the maximum OT V
L
specification of 0.8V, an additional 3.2mW of power is
dissipated within the IC. This corresponds to a 0.35癈
rise in the die temperature.
Applications
Figure 7 shows the MAX6625/MAX6626 used as a tem-
perature-triggered fan controller. Figure 8 shows the
MAX6625/MAX6626 used as a thermostat to control a
heating element.
4
6
+V
S
+3V TO +5V
+12V
OT
MAX6625R
MAX6626R
2
12V 300mA
FAN MOTOR
LOGIC LEVEL
MOSFET
5
6
+V
S
+3V TO +5V
OT
MAX6625P
MAX6626P
RELAY
5VDC, 20mA
125VAC, 1A
2N3904
HEATER
SUPPLY
HEATER
3
4k
Figure 7. Fan Controller
Figure 8. Simple Thermostat
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6626PMUT | 制造商:Maxim Integrated Products 功能描述:32-BIT TEMPERATURE SENSOR W/ I2C-COMPATIBLE S - Cut Tape Product 制造商:Rochester Electronics LLC 功能描述: |
| MAX6626PMUT+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 |
| MAX6626PMUT-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 |
| MAX6626RMTT+ | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL I2C 6TDFN EP - Rail/Tube |
| MAX6626RMTT+T | 功能描述:板上安装温度传感器 9-Bit/12-Bit Temperature Sensor 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 |
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