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LTC1235CSW-TRPBF Datasheet(PDF) 5 Page - Linear Technology |
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LTC1235CSW-TRPBF Datasheet(HTML) 5 Page - Linear Technology |
5 / 16 page LTC1235 5 1235fa TYPICAL PERFORMANCE CHARACTERISTICS RESET Output Voltage vs SupplyVoltage Reset Active Time vs Temperature Reset Voltage Threshold vs Temperature Power Fail Comparator Response Time Power Fail Comparator Response Time Power Fail Comparator Response Time with Pullup Resistor VOUT vs IOUT VOUT vs IOUT Power Failure Input Threshold vs Temperature LOAD CURRENT (mA) 0 4.90 4.95 5.00 40 1235 G01 4.85 4.80 4.75 10 20 30 50 SLOPE = 5Ω VCC = 5V VBATT = 2.8V TA = 25°C LOAD CURRENT (μA) 0 2.76 2.78 400 1235 G02 2.74 2.72 100 200 300 500 2.80 BACKUP MODE SELECTED VCC = 0V VBATT = 2.8V TA = 25°C SLOPE = 125Ω TEMPERATURE ( ˚C) –50 1.304 1.306 1.308 25 75 1235 G03 1.302 1.300 –25 0 50 100 125 1.298 1.296 1.294 VCC = 5V SUPPLY VOLTAGE (V) 0 3 4 5 4 2 1 0 1 2 3 5 TA = 25°C EXTERNAL PULLUP = 10μA VBATT = 0V 1235 G04 TEMPERATURE ( °C) –50 216 224 232 25 75 1235 G05 208 200 –25 0 50 100 125 192 184 VCC = 5V TEMPERATURE ( °C) –50 4.64 4.65 4.66 25 75 1235 G06 4.63 4.62 –25 0 50 100 125 4.61 4.60 TIME (μs) 0 4 5 6 4 1235 G07 3 2 0 12 3 5 1 1.305V 1.285V 8 7 6 VCC = 5V TA = 25°C + – VPFI 1.3V PFO 30pF VPFI = 20mV STEP TIME (μs) 0 4 5 6 40 1235 G08 3 2 0 20 60 1 1.315V 1.295V 120 100 80 VPFI = 20mV STEP 180 160 140 VCC = 5V TA = 25°C + – VPFI 1.3V PFO 30pF TIME (μs) 0 4 5 6 4 1235 G09 3 2 0 2 6 1 1.315V 1.295V 12 10 8 VPFI = 20mV STEP 18 16 14 VCC = 5V TA = 25°C + – VPFI 1.3V PFO 30pF 10k +5V |
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