Datasheet LTC2956 (Analog Devices) - 5

LTC2956
TYPICAL PERFORMANCE CHARACTERISTICS Undervoltage Lockout vs Supply Current vs Temperature Supply Current vs Supply Voltage Temperature
2.00 1.4 1.30 SLEEP STATE 1.75 T 1.2 A = 85°C 1.28 1.50 1.25 1.0 1.26 (µA) (V) 1.00 SLEEP STATE (µA) TA = 25°C I VIN I VIN V UVL 0.75 0.8 1.24 TA = –40°C 0.50 OFF STATE 0.6 1.22 0.25 0 0.4 1.20 –50 –25 0 25 50 75 100 0 5 10 15 20 25 30 35 40 –50 –25 0 25 50 75 100 TEMPERATURE (°C) VIN (V) TEMPERATURE (°C) 2956 G01 2956 G02 2956 G03
Wake-Up Period vs PERIOD Resistance Wake-Up Period vs Temperature Maximum Awake Time vs CONMAX
4.0 256 10000 NRANGE = 4 NRANGE = 1 3.5 RCOM = 100k RPERIOD = 100k RRANGE = 17.4k 254 3.0 252 1000 2.5 (ms) (ms) (seconds) 2.0 250 1.5 t PERIOD t ONMAX t PERIOD 248 100 1.0 246 0.5 0 244 10 0 50 100 150 200 250 300 350 400 –50 –25 0 25 50 75 100 1 10 100 1000 RPERIOD (kΩ) TEMPERATURE (°C) CONMAX (nF) 2956 G04 2956 G05 2956 G06
Maximum Awake Time vs EN Output High Voltage vs EN Output High Voltage vs Temperature Supply Voltage Temperature
70 4.0 4.0 CONMAX = 3.9nF VIN = 7V 65 3.5 3.8 60 3.0 55 (V) (V) 3.6 (ms) 50 2.5 t ONMAX 45 V EN(VOH) V EN(VOH) 3.4 2.0 40 3.2 1.5 35 30 1.0 3.0 –50 –25 0 25 50 75 100 1 2 3 4 5 6 7 –50 –25 0 25 50 75 100 TEMPERATURE (°C) VIN (V) TEMPERATURE (°C) 2956 G07 2956 G08 2956 G09 2956fa For more information www.linear.com/LTC2956 5