Datasheet LT8310 (Analog Devices) - 6

LT8310
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. DUTY • VIN Line Regulation (Normalized) Duty • VIN Temperature Regulation Duty Set Current vs Temperature
1.02 12.24 2 20.2 1.0 VSET = 1V VSET = 1V 1.01 12.12 1 20.1 0.5 ) (V/V) ERROR (%) ERROR (%) SET (V) IN (µA) 1.00 12.00 0 20.0 0 /(12 • V IN DUTY • V I RDVIN 11.88 –1 DUTY • V 0.99 19.9 –0.5 VSET = 2V VIN = 96V VSET = 1V VIN = 48V VSET = 0.5V VIN = 24V 0.98 11.76 –2 19.8 –1.0 0 20 40 60 80 100 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 VIN (V) TEMPERATURE (°C) TEMPERATURE (°C) 8310 G01 8310 G02 8310 G03
Switching Frequency and (Period) Switching Frequency vs Programming Resistance vs Temperature UVLO Threshold vs Temperature
600 12 306 2 1.30 RT = 33.2k 1.29 500 10 fSW tSW 1.28 303 1 RISING 400 8 1.27 t ERROR (%) SW 1.26 (V) (kHz) (µs) 300 6 (kHz) 300 0 1.25 f SW f SW V UVLO 1.24 200 4 1.23 297 –1 FALLING 100 2 1.22 1.21 0 0 294 –2 1.20 0 20 40 60 80 100 120 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 RT (kΩ) TEMPERATURE (°C) TEMPERATURE (°C) 8310 G04 8310 G05 8310 G06
UVLO Hysteresis Current UVLO Hysteresis Current OVLO Threshold Voltage vs UVLO Voltage vs Temperature vs Temperature
6 7.0 1.26 UVLO FALLING VUVLO = 1.15V RISING 5 6.5 1.25 4 6.0 1.24 3 (µA) (µA) (V) 5.5 1.23 I UVLO 2 I UVLO V OVLO FALLING 5.0 1.22 1 0 4.5 1.21 –1 4.0 1.20 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 VUVLO (V) TEMPERATURE (°C) TEMPERATURE (°C) 8310 G07 8310 G08 8310 G09 8310f 6 For more information www.linear.com/LT8310 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Operation Applications Information Typical Applications Package Description Typical Application Related Parts