CXHA3185是一个完全集成的、可编程的远程热二极管温度开关，其阈值由引脚捆绑设置0和设置1设置。远程二极管是二极管连接的晶体管，通常是低成本、易于安装的2N3904 NPN型、2N3906 PNP型晶体管或CPU/GPU内置热二极管。它只需要让管脚SET0和SET1连接到GND、VCC或浮动，即可将温度阈值设置在60°C到+124°C的温度范围内。CXHA3185提供开漏、有源低输出。该开关在+3.0V至+5.5V单电源下工作，同时提供±1.0°C（典型值）或±3.0°C（最大值，+60°C至+100°C）的温度阈值精度。磁滞可选择为2°C或10°C。
±1.0°C典型阈值精度
@±3°C（最大）阈值精度（+60°C至+100°C）
温度阈值由引脚设置0，设置1设置
开漏有源低输出级
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[ CXHA3185 ]"
目录
7.相关产品
产品概述 返回TOP
The CXHA3185 is a fully integrated, programmable remote thermal diode temperature switch with a threshold set by pin-strapping SET0 and SET1. The remote diode is a diode-connected transistor typically low-cost, easily mounted 2N3904 NPN type, 2N3906 PNP type transistor or CPU/GPU build-in thermal diode. It requires only let pin SET0 and SET1 tie to GND, VCC or floating to set the temperature threshold within a 60°C to +124°C temperature range. The CXHA3185 provides an open-drain, active low output. This switch operates with a +3.0V to +5.5V single supply while providing a temperature threshold accuracy of ±1.0°C (TYP) or ±3.0°C (max, +60°C to +100°C). Hysteresis is pin selectable to 2°C or 10°C.
产品特点 返回TOP
±1.0°C Typical Threshold Accuracy
±3.0°C (max) Threshold Accuracy (+60°C to +100°C)
Temperature Threshold Set by Pin SET0, SET1
Open-Drain Active Low Output Stage
Pin-Selectable 2°C or 10°C Hysteresis
SOP-8 and MSOP-8 Packages
应用范围 返回TOP
μP Temperature Monitoring in High-Speed
Computers
Temperature Control
Temperature Alarms
Fan Control
Automotive
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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Temperature Transducer |
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Part NO. |
VCC(V) min. |
VCC(V) max. |
Sensor Gain |
VOUT (V) |
Sensor Range(°C) |
Accuracy (°C) |
Isupply (μA) |
Note |
Package |
|
2 |
5.5 |
-11.6 |
2.5~0.3 |
-55~130 |
±1 |
18 |
Negative temperature coefficient output |
TO126F/SC70-5(SOT353) |
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Digital Interface Temperature Sensor |
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Part NO. |
VCC(V) min. |
VCC(V) max. |
Remote |
Local |
Interface |
Slave Address |
Accuracy (°C) |
Note |
Package |
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3 |
5.5 |
N |
1 |
SMBus |
1001XXX |
±2 |
8 slave addresses 9 bits resolution |
SOP8/MSOP8/TDFN3X3-8 |
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|
3 |
5.5 |
N |
1 |
SMBus |
1001XXX |
±1 |
8 slave addresses 11 bits resolution |
SOP8/MSOP8/TDFN3X3-8 /TDFN3X2-8 |
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|
3 |
3.6 |
N |
1 |
SMBus |
1001000 |
±1 |
-10°C to 80°C±1°C(max) |
SOT23-5 |
|
|
3 |
5.5 |
1 |
1 |
SMBus |
1001100 |
±1 |
Support transitor mode |
SOP8/MSOP8 |
|
|
3 |
5.5 |
1 |
1 |
SMBus |
1001100 |
±1 |
Remote up to 160°C |
SOP8/MSOP8/TDFN3X3-8 |
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3 |
5.5 |
N |
1 |
SMBus |
1001100 |
±3 |
Local temperature sensor |
MSOP8 |
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3 |
5.5 |
2 |
1 |
SMBus |
1001100 |
±1 |
Support transistor mode |
MSOP10 |
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3 |
5.5 |
1 |
1 |
SMBus |
1001100 |
±1 |
SMBus inputs are built-in switch to prevent reverse leakage |
SOP8/MSOP8/TDFN3X3-8 |
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3 |
5.5 |
1 |
1 |
SMBus |
1001100 |
±1 |
Griffin |
SOP8 MSOP8 |
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Thermal Switch |
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Part NO. |
VCC(V) min. |
VCC(V) max. |
Sensor |
Hysterisis VCCGND |
Output Type |
Accuracy (°C) |
Isupply (μA) |
Note |
Package |
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4 |
5.5 |
-- |
10 or 30 |
Open Drain |
±3.5 |
33 |
N/A |
SOT23-5 |
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|
3 |
5.5 |
Remote |
10 or 2 |
Open Drain |
±3 |
-- |
OT is set by SET0 and SET1, Thermal diode needed |
SOP8/MSOP8 |
|
|
2.7 |
5.5 |
Local |
10 or 30 |
Open Drain |
±3.5 |
33 |
OT is set by an external resistor |
SOT23-5/TDFN2X2-8 |
|
|
2.7 |
5.5 |
Local |
10 or 2 |
Open Drain |
±3.5 |
33 |
OT is set by an external resistor |
TDFN2X2-8/ADFN1.5X1.5-6/SOT23-5/SOT23-6 |
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|
2.7 |
5.5 |
Remote |
Set by Resistor |
Open Drain |
-- |
70 |
8 Remote SensorsThermistor is needed |
TQFN3X3-16 |
|
|
2.7 |
5.5 |
Remote |
Set by Resistor |
Open Drain |
-- |
42 |
2 Remote SensorsThermistor is needed |
SOT23-8/AQFN1.5X1.5-8 |
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