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MCP73871T Datasheet(PDF) 7 Page - Microchip Technology |
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MCP73871T Datasheet(HTML) 7 Page - Microchip Technology |
7 / 38 page © 2009 Microchip Technology Inc. DS22090B-page 7 MCP73871 PROG1 Input (PROG1) Charge Impedance Range RPROG 1— 20 k Ω PROG3 Input (PROG3) Termination Impedance Range RPROG 5 — 100 k Ω PROG2 Input (PROG2) Input High Voltage Level VIH 1.8 — — V Input Low Voltage Level VIL —— 0.8 V Input Leakage Current ILK —0.01 1 µA VPROG2 = VDD Timer Enable (TE) Input High Voltage Level VIH 1.8 — — V Note 1 Input Low Voltage Level VIL —— 0.8 V Note 1 Input Leakage Current ILK —0.01 1 µA VTE = VDD Chip Enable (CE) Input High Voltage Level VIH 1.8 — — V Input Low Voltage Level VIL —— 0.8 V Input Leakage Current ILK —0.01 1 µA VCE = VDD Input Source Selection (SEL) Input High Voltage Level VIH 1.8 — — V Input Low Voltage Level VIL —— 0.8 V Input Leakage Current ILK —0.01 1 µA VSEL = VDD Thermistor Bias Thermistor Current Source ITHERM 47 50 53 µA 2 k Ω < R THERM < 50 kΩ Thermistor Comparator Upper Trip Threshold VT1 1.20 1.24 1.26 V VT1 Low-to-High Upper Trip Point Hysteresis VT1HYS —-40 — mV Lower Trip Threshold VT2 0.23 0.25 0.27 V VT2 High-to-Low Lower Trip Point Hysteresis VT2HYS —40 — mV Thermal Shutdown Die Temperature TSD — 150 — °C Die Temperature Hysteresis TSDHYS —10 — °C DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise indicated, all limits apply for V IN = VREG + 0.3V to 6V, TA = -40°C to +85°C. Typical values are at +25°C, VIN = [VREG (typical) + 1.0V] Parameters Sym Min Typ Max Units Conditions Note 1: The value is ensured by design and not production tested. 2: The maximum available charge current is also limited by the value set at PROG1 input. |
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