Datasheet LT1680 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | High Power DC/DC Step-Up Controller |
| Pages / Page | 16 / 4 — TYPICAL PERFOR A CE CHARACTERISTICS. I12VIN Supply Current. vs … |
| File Format / Size | PDF / 228 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS. I12VIN Supply Current. vs Temperature. vs 12V. Gate Transition Time vs C. IN Supply Voltage
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LT1680
W U TYPICAL PERFOR A CE CHARACTERISTICS I12VIN Supply Current I12VIN Supply Current vs Temperature vs 12V Gate Transition Time vs C IN Supply Voltage GATE
19 40 150 T f A = 25°C O = 150kHz • 18 TA = 25°C 130 35 17 CG = 10nF 110 • 16 t • 30 f tr 15 90 • • 25 14 CG = 4.7nF SUPPLY CURRENT (mA) 70 SUPPLY CURRENT (mA ) • 13 • I 12VIN GATE TRANSITION TIME (ns) I 12VIN 20 CG = 3.3nF 50 12 CG = 1nF 11 15 30 –50 –25 0 25 50 75 100 125 10 11 12 13 14 15 0 2500 5000 7500 10000 TEMPERATURE (°C) 12V C IN SUPPLY VOLTAGE (V) GATE (pF) 1680 G01 1680 G02 1680 G03
5VREF Short-Circuit Current I12VIN Shutdown Current VREF Voltage vs Temperature vs Temperature vs Temperature
60 190 1.252 5VREF = 0V 55 µA) 180 1.251 50 170 1.250 45 160 1.249 VOLTAGE (V) 40 150 REFV 1.248 SHUTDOWN CURRENT ( SHORT-CIRCUIT CURRENT (mA) REF 35 I 12VIN 140 1.247 5V 30 130 1.246 – 50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1680 G04 1680 G05 1680 G06
5VREF Voltage Error Amplifier Voltage Gain Error Amplifier Transconductance vs Temperature vs Temperature vs Temperature
Ω 5.01 4.5 2.6 4.0 2.4 3.5 5.00 2.2 3.0 2.0 VOLTAGE (V) 2.5 REF 5V 4.99 1.8 2.0 1.5 1.6 ERROR AMPLIFIER VOLTAGE GAIN (kV/V) 4.98 1.0 ERROR AMPLIFIER TRANSCONDUCTANCE (m ) 1.4 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1680 G07 1680 G08 1680 G09 4
W U TYPICAL PERFOR A CE CHARACTERISTICS I12VIN Supply Current I12VIN Supply Current vs Temperature vs 12V Gate Transition Time vs C IN Supply Voltage GATE
19 40 150 T f A = 25°C O = 150kHz • 18 TA = 25°C 130 35 17 CG = 10nF 110 • 16 t • 30 f tr 15 90 • • 25 14 CG = 4.7nF SUPPLY CURRENT (mA) 70 SUPPLY CURRENT (mA ) • 13 • I 12VIN GATE TRANSITION TIME (ns) I 12VIN 20 CG = 3.3nF 50 12 CG = 1nF 11 15 30 –50 –25 0 25 50 75 100 125 10 11 12 13 14 15 0 2500 5000 7500 10000 TEMPERATURE (°C) 12V C IN SUPPLY VOLTAGE (V) GATE (pF) 1680 G01 1680 G02 1680 G03
5VREF Short-Circuit Current I12VIN Shutdown Current VREF Voltage vs Temperature vs Temperature vs Temperature
60 190 1.252 5VREF = 0V 55 µA) 180 1.251 50 170 1.250 45 160 1.249 VOLTAGE (V) 40 150 REFV 1.248 SHUTDOWN CURRENT ( SHORT-CIRCUIT CURRENT (mA) REF 35 I 12VIN 140 1.247 5V 30 130 1.246 – 50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1680 G04 1680 G05 1680 G06
5VREF Voltage Error Amplifier Voltage Gain Error Amplifier Transconductance vs Temperature vs Temperature vs Temperature
Ω 5.01 4.5 2.6 4.0 2.4 3.5 5.00 2.2 3.0 2.0 VOLTAGE (V) 2.5 REF 5V 4.99 1.8 2.0 1.5 1.6 ERROR AMPLIFIER VOLTAGE GAIN (kV/V) 4.98 1.0 ERROR AMPLIFIER TRANSCONDUCTANCE (m ) 1.4 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1680 G07 1680 G08 1680 G09 4
