Datasheet LTC1871X (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Wide Input Range, No RSENSE Current Mode Boost, Flyback and SEPIC Controller |
| Pages / Page | 32 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. FB Voltage vs Temperature. FB … |
| File Format / Size | PDF / 777 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. FB Voltage vs Temperature. FB Voltage Line Regulation. FB Pin Current vs Temperature
Model Line for this Datasheet
Text Version of Document
LTC1871X
TYPICAL PERFORMANCE CHARACTERISTICS FB Voltage vs Temperature FB Voltage Line Regulation FB Pin Current vs Temperature
1.250 1.231 150 135 1.245 120 1.240 105 1.235 90 TAGE (V) 1.230 1.230 75 60 1.225 FB VOL FB VOLTAGE (V) 45 FB PIN CURRENT (nA) 1.220 30 1.215 15 1.210 0 –50 –25 0 25 50 75 100 125 150 175 200 1.229 –50 –25 0 25 50 75 100 125 150 175 200 0 5 10 15 20 25 30 35 TEMPERATURE (°C) TEMPERATURE (°C) V 1871x G01 IN (V) 1871x G03 1871x G02
Shutdown Mode IQ vs Shutdown Mode IQ vs VIN Temperature Burst Mode IQ vs VIN
30 40 600 36 500 32 (µA) 28 Q 20 400 24 (µA) CURRENT (µA) Q Q 20 300 16 10 12 Burst Mode I 200 SHUTDOWN MODE I 8 100 SHUTDOWN MODE I 4 0 0 0 0 10 20 30 40 –50 –25 0 25 50 75 100 125 150 175 200 0 10 20 30 40 VIN (V) TEMPERATURE (°C) VIN (V) 1871x G05 1871x G04 1871x G06
Gate Drive Rise and Fall Dynamic IQ vs Frequency Time vs CL
18 60 CL = 3300pF 16 IQ(TOT) = 550µA + Qg • f 50 14 12 40 10 RISE TIME (mA) 30 I Q 8 TIME (ns) 6 20 4 FALL TIME 10 2 0 0 0 200 400 600 800 1000 1200 0 2000 4000 6000 8000 10000 12000 FREQUENCY (kHz) CL (pF) 1871x G07 1871x G08 1871xf For more information www.linear.com/LTC1871X 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS FB Voltage vs Temperature FB Voltage Line Regulation FB Pin Current vs Temperature
1.250 1.231 150 135 1.245 120 1.240 105 1.235 90 TAGE (V) 1.230 1.230 75 60 1.225 FB VOL FB VOLTAGE (V) 45 FB PIN CURRENT (nA) 1.220 30 1.215 15 1.210 0 –50 –25 0 25 50 75 100 125 150 175 200 1.229 –50 –25 0 25 50 75 100 125 150 175 200 0 5 10 15 20 25 30 35 TEMPERATURE (°C) TEMPERATURE (°C) V 1871x G01 IN (V) 1871x G03 1871x G02
Shutdown Mode IQ vs Shutdown Mode IQ vs VIN Temperature Burst Mode IQ vs VIN
30 40 600 36 500 32 (µA) 28 Q 20 400 24 (µA) CURRENT (µA) Q Q 20 300 16 10 12 Burst Mode I 200 SHUTDOWN MODE I 8 100 SHUTDOWN MODE I 4 0 0 0 0 10 20 30 40 –50 –25 0 25 50 75 100 125 150 175 200 0 10 20 30 40 VIN (V) TEMPERATURE (°C) VIN (V) 1871x G05 1871x G04 1871x G06
Gate Drive Rise and Fall Dynamic IQ vs Frequency Time vs CL
18 60 CL = 3300pF 16 IQ(TOT) = 550µA + Qg • f 50 14 12 40 10 RISE TIME (mA) 30 I Q 8 TIME (ns) 6 20 4 FALL TIME 10 2 0 0 0 200 400 600 800 1000 1200 0 2000 4000 6000 8000 10000 12000 FREQUENCY (kHz) CL (pF) 1871x G07 1871x G08 1871xf For more information www.linear.com/LTC1871X 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
