Datasheet LTC3723 (Analog Devices) - 5

LTC3723-1/LTC3723-2
W U TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25
°
C unless otherwise noted) LTC3723 Deadtime vs RDPRG With and Without 200k Prebias Error Amplifier Gain/Phase Start-Up ICC vs Temperature Compensation
190 275 100 180 250 80 60 170 225 200k PREBIAS 40 GAIN (dB) 160 200 20 0 µA) 150 175 ( I CC 140 150 DELAY (ns) –180 NO 200k PREBIAS 130 125 –270 120 100 PHASE (DEG) –360 110 75 100 50 10 100 1k 10k 100k 1M 10M –55 –25 5 35 65 95 125 0 50 100 150 200 250 300 350 400 450 500 FREQUENCY (Hz) TEMPERATURE (°C) RDPRG (kΩ) 372312 G07 372312 G08 372312 G09
V Synchronous Driver Turn-Off Delay CC Shunt Voltage vs Slope Current vs Temperature Temperature vs RSPRG Referenced to CT Peak
90 10.5 900 ICC = 10mA 80 800 10.4 C 70 T = 2.25V 700 10.3 60 600 µA) 50 10.2 500 40 400 10.1 DELAY (ns) CURRENT ( CT = 1V 30 300 SHUNT VOLTAGE (V) 10.0 20 200 9.9 10 100 0 9.8 0 –55 –25 5 35 65 95 125 –55 –25 5 35 65 95 125 0 50 100 150 200 250 300 TEMPERATURE (°C) TEMPERATURE (°C) RSPRG (kΩ) 372312 G10 372312 G11 372312 G12
Synchronous Driver Turn-Off Delay vs RSPRG Referenced to FB Input Voltage vs Temperature Push-Pull Driver Outputs
1.205 350 RDPRG = 150k 1.204 300 1.203 250 1.202 200 1.201 150 1.200 DELAY (ns) 100 FB VOLTAGE (V) 1.199 50 1.198 0 1.197 –50 –55 –25 5 35 65 95 125 0 50 100 150 200 250 300 TEMPERATURE (°C) RSPRG (kΩ) 372312 G13 372312 G14 372312f 5