TC6501P045VCTTR Microchip

TC6501/2/3/4 Ultra Small Temperature Switches with Pin Selectable Hysteresis Features General Description 5-Pin SOT-23A The TC6501/2/3/4 are SOT-23 temperature switches that require no external components and are available Factory-programmed Thresholds from with factory-programmed temperature thresholds. A -45C to +125C in 10C Increments choice of factory-trimmed temperature trip points are Pin Selectable +2C or +10C Hysteresis also available. Pin-selectable hysteresis of +2C or 0.5C (Typ) Threshold Accuracy Over Full +10C allows flexibility to the design of the application. Temperature Range These parts typically consume only 17 A of current No External Components Required and operate over the entire -55C to +135C 17 A Supply Current (Typ) temperature range, while offering accuracies of 0.5C (typ). Applications The TC6501 and TC6503 have an open-drain, active- Thermal Management in PCs and Servers low output, which targets microcontroller reset control. The TC6502 and TC6504 have a CMOS, active-high Over-temperature Fail-safe Circuits output designed to drive the logic level MOSFET that Simple Fan Controller turns on a fan or heater element. Temperature Alarms The TC6501/TC6502 are designed for hot temperature Projectors/Printers monitoring (+35C to +125C). These devices assert a Notebook Computers logic signal when the temperature goes above the Network Boxes threshold. The TC6503/TC6504 are optimized for cold temperature monitoring (-45C to +15C) and assert a Package Types logic signal when the temperature goes below the threshold. The TC6501/2/3/4 are offered with five standard tem- T TC6501 5 GND 1 OVER perature thresholds. Available in 5-Pin SOT-23A pack- T TC6502 OVER ages, these parts are ideal for applications requiring high integration, small size, low power and low installed TC6501 GND 2 cost. TC6502 Functional Block Diagram 4 HYST 3 V CC +2.7V to +5.5V 100 pF V V T TC6503 CC CC 5 GND 1 UNDER T TC6504 UNDER PIC TC6502 TC6503 Microcontroller GND 2 TC6504 T INT OVER GND GNDHYST GND 4 HYST 3 V CC Note: 5-Pin SOT-23A is equivalent to EIAJ SC-74A 2002-2012 Microchip Technology Inc. DS21451E-page 1TC6501/2/3/4 * Notice: Stresses above those listed under Maximum 1.0 ELECTRICAL Ratings may cause permanent damage to the device. CHARACTERISTICS This is a stress rating only and functional operation of the device at these or any other conditions above those Absolute Maximum Ratings* indicated in the operational sections of the specifica- tions is not implied. Exposure to maximum rating con- Supply Voltage (V ) .............................. -0.3V to +7V CC ditions for extended periods may affect device Input Current (All Pins).......................................20 mA reliability. Output Current (All Pins) ....................................20 mA Operating Temperature Range..........- 55C to +135C Storage Temperature Range .............- 65C to +165C T (TC6501)....................................... -0.3V to +7V OVER T (TC6502)......................... -0.3V to (V + 0.3V) OVER CC T (TC6503)....................................... -0.3V to 7V UNDER T (TC6504)....................... -0.3V to (V + 0.3V) UNDER CC All Other Pins ............................. -0.3V to (V + 0.3V) CC Maximum Junction Temperature, T .................. 150C J Power Dissipation (T = +70C): A (Derate 7.1 mW/C Above +70C) ...............570 mW ELECTRICAL SPECIFICATIONS Electrical Characteristics: Unless otherwise noted, V = +2.7V to +5.5V, R = 100 k (TC6501/TC6503 only), 100 pF CC PULL-UP decoupling capacitor from V to GND, T = -55C to +135C. Typical values are at T = +25C. CC AMB A Parameter Symbol Min Typ Max Unit Test Conditions Supply Voltage Range V 2.7 5.5 V CC Supply Current I 17 40 A CC HYST Input Threshold V 0.8 x V V IH CC HYST Input Threshold V 0.2 x V V IL CC Temperature Threshold Accuracy (Note 1) T -6 0.5 6 C -45C to -25C TH -4 0.5 4 C -15C to +15C -4 0.5 4 C +35C to +65C -6 0.5 6 C +75C to +125C Temperature Threshold Hysteresis T 2.0 C HYST = GND HYST 10 C HYST = V CC Output Voltage High V 0.8 x V V I = 500 A, V > 2.7V OH CC SOURCE CC (TC6502/TC6504 Only) V - 1.5 V I = 800 A, V > 4.5V CC SOURCE CC (TC6502/TC6504 Only) Output Voltage Low V 0.3 V I = 1.2 mA, V > 2.7V OL SINK CC 0.4 V I = 3.2 mA, V > 4.5V SINK CC Open-Drain Output Leakage Current 10 nA V = 2.7V, T = 5.5V CC UNDER (TC6503) T = 5.5V OVER (TC6501) Note 1: The TC6501/2/3/4 are available with internal, factory-programmed temperature trip thresholds from -45C to +125C, in +10C increments. DS21451E-page 2 2002-2012 Microchip Technology Inc.