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. The MCP9509/10 operate from 2.7V to 5.5V. This family is capable of triggering for temperatures -40°C to +125°C with high accuracy.
Parameter Name Value
Typical Accuracy (°) 0.5
Max Input/ Supply Current (µA) 80
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
