Datasheet LTC1040 (Analog Devices) - 9
| Fabricante | Analog Devices |
| Descripción | Dual Micropower Comparator |
| Páginas / Página | 12 / 9 — TYPICAL APPLICATIO S. Complete Heating/Cooling Automatic Thermostat. … |
| Formato / tamaño de archivo | PDF / 227 Kb |
| Idioma del documento | Inglés |
TYPICAL APPLICATIO S. Complete Heating/Cooling Automatic Thermostat. Window Comparator with Independent Window Limits and
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LTC1040
U TYPICAL APPLICATIO S Complete Heating/Cooling Automatic Thermostat
5V AT 0.85µA 17 18 20M LTC1040 4.32k 4.99k 5 + 6 – 4 7 + COMP A † 8 – 82k* 3 5k HEAT TEMP ADJUST 14 + 13 6.81k – 15 12 + COMP B COOL 11 – 10M 16 82k* † 0.1 THERMISTOR # 44007 µF 9 10 YELLOW SPRINGS INSTRUMENT CO., INC. SEPARATION * 82k HYSTERESIS = 5V • = 20mV LTC1040 • TA03 20M 20M (20mV) 28°C AIRCONDITIONING ON HYSTERESIS AIRCONDITIONING OFF HEATER OFF SEPARATION TURE HYSTERESIS 27°C HEATER ON TEMPERA HEAT COOL TIME LTC1040 • TA04
Window Comparator with Independent Window Limits and Hysteresis Comparator with Fully Floating Differential Input Fully Floating Differential Input
V+ LTC1040 V + IN + – V OUT IN – V A TRIP +1/2 LTC1040 OUT = “1” WHEN + COMP A V R1 * – IN > VU V 10k U – A+B = “1” WHEN R2 VU ≥ VIN ≥ VL 2.49MΩ + – V B TRIP R2 + (5V) R1 OUT = “1” WHEN OUT = “0” WHEN VIN > VU = = 0.996 VTRIP + 20mV R1 + R2 VL + COMP B VIN < VL – V OUT = “1” WHEN V TRIP R2 IN < V1 = = 0.996VTRIP R1 + R2 LTC1040 • TA05 * TO CENTER HYSTERESIS ABOUT VTRIP, FORCE THIS INPUT TO HYSTERESIS/2 (10mV) LTC1040 • TA06 1040fa 9
U TYPICAL APPLICATIO S Complete Heating/Cooling Automatic Thermostat
5V AT 0.85µA 17 18 20M LTC1040 4.32k 4.99k 5 + 6 – 4 7 + COMP A † 8 – 82k* 3 5k HEAT TEMP ADJUST 14 + 13 6.81k – 15 12 + COMP B COOL 11 – 10M 16 82k* † 0.1 THERMISTOR # 44007 µF 9 10 YELLOW SPRINGS INSTRUMENT CO., INC. SEPARATION * 82k HYSTERESIS = 5V • = 20mV LTC1040 • TA03 20M 20M (20mV) 28°C AIRCONDITIONING ON HYSTERESIS AIRCONDITIONING OFF HEATER OFF SEPARATION TURE HYSTERESIS 27°C HEATER ON TEMPERA HEAT COOL TIME LTC1040 • TA04
Window Comparator with Independent Window Limits and Hysteresis Comparator with Fully Floating Differential Input Fully Floating Differential Input
V+ LTC1040 V + IN + – V OUT IN – V A TRIP +1/2 LTC1040 OUT = “1” WHEN + COMP A V R1 * – IN > VU V 10k U – A+B = “1” WHEN R2 VU ≥ VIN ≥ VL 2.49MΩ + – V B TRIP R2 + (5V) R1 OUT = “1” WHEN OUT = “0” WHEN VIN > VU = = 0.996 VTRIP + 20mV R1 + R2 VL + COMP B VIN < VL – V OUT = “1” WHEN V TRIP R2 IN < V1 = = 0.996VTRIP R1 + R2 LTC1040 • TA05 * TO CENTER HYSTERESIS ABOUT VTRIP, FORCE THIS INPUT TO HYSTERESIS/2 (10mV) LTC1040 • TA06 1040fa 9