MCP9509 Datasheet

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  Resistor-Programmable Temperature Switches


Microchip Technology’s MCP9509/10 devices are programmable logic output temperature switches. The temperature switch threshold can be programmed with a single external resistor, which provides high design flexibility and simplicity. In addition, this family of devices provide user programmable features such as 2°C and 10°C (typical) switch hysteresis and output structure configuration. The MCP9509 provides an open drain output, whereas the MCP9510 is offered in three different user selectable output configurations: Active-low/Active-high push pull and Active-Low Open-Drain output with an internal 100 kΩ pull-up resistor.  
Parameter Name  Value
Typical Accuracy (°)  0.5
Max Input/ Supply Current (µA)  50
Max. Accuracy @ 25° (°)  NA
Temp. Range (°C)  -40 to +125
Operating Voltage Range (V)  2.7 to 5.5
Device Description  Logic Output Temp Sensor

     Features
Resistor-Programmable Temperature Switch
Wide Operating Voltage Range: 2.7V to 5.5V
Low Supply Current: 30 μA (typical)
Temperature Switch Accuracy:
  - ±0.5°C (typical) at +25°C
  - ±1°C (typical) 0°C to +70°C
  - ±3.5°C (maximum) 0°C to +125°C
  - ±4.5°C (maximum) -20°C to +125°C
  - ±2°C (typical) -40°C to +125°C
Sensor Options available:
  - Switch for rising temperature: Cold to Hot (H)
  - Switch for falling temperature: Hot to Cold (C)
Output Configurations:
  - Open-Drain:
  – External Pull-up Resistor: MCP9509
  – Internal Pull-up Resistor: MCP9510
  - Active-Low, Push-Pull: MCP9510
  - Active-High, Push-Pull: MCP9510
User Selectable Hysteresis: 2°C or 10°C (typical)
Space-Saving SOT-23-5, SOT-23-6 Packages


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