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MCP9503 Datasheet(PDF) 1 Page - Microchip Technology |
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MCP9503 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 20 page  © 2011 Microchip Technology Inc. DS22268A-page 1 MCP9501/2/3/4 Features • Factory Set Temperature Switch • Available Temperature Switch Thresholds: -TSET = -35°C,-25°C, -15°C, -5°C, 5°C, 15°C, 25°C, 35°C, 45°C, 55°C, 65°C, 75°C, 85°C, 95°C, 105°C, 115°C, 125°C • Wide Operating Voltage Range: 2.7V to 5.5V • Low Supply Current: 25 µA (typical) • Temperature Switch Accuracy: - ±1°C (typical) - ±4°C (maximum) -15°C to +75°C - ±6°C (maximum) -40°C to +125°C • Switch Threshold Options (Hot/Cold): - Rising Temp.: MCP9501/2 (Hot Option) - Falling Temp.: MCP9503/4 (Cold Option) • Output Configuration Options: - Active Low, Open-Drain Output: MCP9501/3 – Uses External Pull-up Resistor - Active-High, Push-Pull Output: MCP9502/4 • User Selectable Hysteresis: 2°C or 10°C (typical) • 5-lead SOT-23 package Applications • Power Supply Critical Temperature Shutdown • Temperature Alarm • Thermostat Control •Fan Control • Base-Stations • Automotive Typical Performance Description Microchip Technology’s MCP9501/2/3/4 family of devices are temperature switches with ±1°C (typical) accurate factory set output thresholds. These devices are ideal for high power supply systems where an overtemperature protection circuit is needed. These devices do not require external components, consume 25 µA (typical), and the factory set thresholds provide simplicity. In addition, this family of devices provide user selectable 2°C and 10°C (typical) switch hysteresis, and various output configurations. The MCP9501/2 outputs switch for rising temperatures while the MCP9503/4 switch for falling temperature, with the relative hysteresis at the set thresholds. This family of devices is also available with Active-High Push-Pull and Active-Low Open-Drain outputs, the MCP9502/4 and the MCP9501/3, respectively. The Push-Pull output is ideal for a microcontroller interface while the Open-Drain output can be used for level shifting, wired- OR configuration, or as a heater on/off switch. The MCP9501/2/3/4 operate from 2.7V to 5.5V supply. This family is available with space saving 5-lead SOT-23 package. Package Types 0% 10% 20% 30% 40% 50% Temperature Accuracy (°C) TA = -35°C to 125°C VDD = 4.1V 32 Units 4 1 2 3 5 GND Hyst SOT-23-5 MCP9501/2/3/4 GND Output VDD Temperature Switch with Selectable Hysteresis |
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