Datasheet LT3001 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 36V 4W No-Opto Isolated Flyback Converter |
| 页数 / 页 | 10 / 4 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 626 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Switching Frequency. Output Load and Line Regulation
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LT3001
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Switching Frequency Output Load and Line Regulation Output Short-Circuit Protection vs Load Current
5.20 6 350 FRONT PAGE APPLICATION FRONT PAGE APPLICATION FRONT PAGE APPLICATION 5.15 300 5 5.10 250 4 5.05 200 5.00 3 150 4.95 2 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 100 4.90 VIN = 5V VIN = 5V VIN = 5V V VIN = 12V SWITCHING FREQUENCY (kHz) IN = 12V 1 V V 50 IN = 12V 4.85 VIN = 24V IN = 24V VIN = 24V VIN = 36V VIN = 36V VIN = 36V 4.80 0 0 0 0.2 0.4 0.6 0.8 1.0 1.2 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 0.2 0.4 0.6 0.8 1.0 1.2 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3001 G01 3001 G02 3001 G03
Boundary Mode Waveforms Discontinuous Mode Waveforms Burst Mode Waveforms
VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV VSW VSW 20V/DIV 20V/DIV VSW 20V/DIV 5µs/DIV 3001 G04 5µs/DIV 3001 G05 20µs/DIV 3001 G06 FRONT PAGE APPLICATION FRONT PAGE APPLICATION FRONT PAGE APPLICATION VIN = 12V VIN = 12V VIN = 12V ILOAD = 600mA ILOAD = 200mA ILOAD = 6mA
EN/UVLO Enable Threshold RFB Regulation Current Switch Current Limit
1.245 105 1.6 1.240 104 1.4 MAXIMUM CURRENT LIMIT 103 1.235 1.2 102 1.230 1.0 (V) 101 1.225 (µA) 100 (A) 0.8 I RFB I SW V EN/UVLO 1.220 99 0.6 98 1.215 0.4 MINIMUM CURRENT LIMIT 97 1.210 96 0.2 1.205 95 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3001 G10 3001 G12 3001 G14 Rev. 0 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Switching Frequency Output Load and Line Regulation Output Short-Circuit Protection vs Load Current
5.20 6 350 FRONT PAGE APPLICATION FRONT PAGE APPLICATION FRONT PAGE APPLICATION 5.15 300 5 5.10 250 4 5.05 200 5.00 3 150 4.95 2 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 100 4.90 VIN = 5V VIN = 5V VIN = 5V V VIN = 12V SWITCHING FREQUENCY (kHz) IN = 12V 1 V V 50 IN = 12V 4.85 VIN = 24V IN = 24V VIN = 24V VIN = 36V VIN = 36V VIN = 36V 4.80 0 0 0 0.2 0.4 0.6 0.8 1.0 1.2 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 0.2 0.4 0.6 0.8 1.0 1.2 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3001 G01 3001 G02 3001 G03
Boundary Mode Waveforms Discontinuous Mode Waveforms Burst Mode Waveforms
VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV VSW VSW 20V/DIV 20V/DIV VSW 20V/DIV 5µs/DIV 3001 G04 5µs/DIV 3001 G05 20µs/DIV 3001 G06 FRONT PAGE APPLICATION FRONT PAGE APPLICATION FRONT PAGE APPLICATION VIN = 12V VIN = 12V VIN = 12V ILOAD = 600mA ILOAD = 200mA ILOAD = 6mA
EN/UVLO Enable Threshold RFB Regulation Current Switch Current Limit
1.245 105 1.6 1.240 104 1.4 MAXIMUM CURRENT LIMIT 103 1.235 1.2 102 1.230 1.0 (V) 101 1.225 (µA) 100 (A) 0.8 I RFB I SW V EN/UVLO 1.220 99 0.6 98 1.215 0.4 MINIMUM CURRENT LIMIT 97 1.210 96 0.2 1.205 95 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3001 G10 3001 G12 3001 G14 Rev. 0 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description