Datasheet LTC3805-5 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | Adjustable Frequency Current Mode Flyback/Boost/SEPIC DC/DC Controller |
| 页数 / 页 | 20 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. Start-Up ICC Supply Current. ICC … |
| 文件格式/大小 | PDF / 265 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Start-Up ICC Supply Current. ICC Supply Current. VCC Shunt Regulator Voltage
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LTC3805-5
TYPICAL PERFORMANCE CHARACTERISTICS Start-Up ICC Supply Current ICC Supply Current VCC Shunt Regulator Voltage vs Temperature vs Temperature vs Temperature
50 360 9.60 48 9.55 350 V 46 CLAMP25mA 9.50 44 340 42 9.45 (V) Y CURRENT (µA) 40 330 9.40 38 Y CURRENT (µA) V CLAMP 9.35 320 T-UP SUPPL 36 SUPPL 9.30 AR 34 VCLAMP1mA ST 310 32 9.25 30 300 9.20 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 38055 G09 38055 G10 38055 G11
Peak Current Sense Voltage Overcurrent Threshold Internal Soft-Start Time vs Temperature vs Temperature vs Temperature
100.8 104 2.20 100.6 2.15 100.4 102 TAGE (mV) 100.2 2.10 100 T TIME (ms) 100.0 AR 2.05 99.8 T-ST 98 99.6 2.00 99.4 96 OVERCURRENT THRESHOLD (mV) INTERNAL SOF 1.95 PEAK CURRENT SENSE VOL 99.2 99.0 94 1.90 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 38055 G12 38055 G13 38055 G14
External Soft-Start Current External Timeout Current vs Temperature vs Temperature
5.4 2.1 5.3 2.0 5.2 5.1 1.9 5.0 T CURRENT (µA) 4.9 1.8 AR 4.8 T-ST 1.7 4.7 SOF I SS 4.6 EXTERNAL TIMEOUT CURRENT (µA) 1.6 O 4.5 I FT 4.4 1.5 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 38055 G15 38055 G16 38055fe 6 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 Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Start-Up ICC Supply Current ICC Supply Current VCC Shunt Regulator Voltage vs Temperature vs Temperature vs Temperature
50 360 9.60 48 9.55 350 V 46 CLAMP25mA 9.50 44 340 42 9.45 (V) Y CURRENT (µA) 40 330 9.40 38 Y CURRENT (µA) V CLAMP 9.35 320 T-UP SUPPL 36 SUPPL 9.30 AR 34 VCLAMP1mA ST 310 32 9.25 30 300 9.20 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 38055 G09 38055 G10 38055 G11
Peak Current Sense Voltage Overcurrent Threshold Internal Soft-Start Time vs Temperature vs Temperature vs Temperature
100.8 104 2.20 100.6 2.15 100.4 102 TAGE (mV) 100.2 2.10 100 T TIME (ms) 100.0 AR 2.05 99.8 T-ST 98 99.6 2.00 99.4 96 OVERCURRENT THRESHOLD (mV) INTERNAL SOF 1.95 PEAK CURRENT SENSE VOL 99.2 99.0 94 1.90 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 38055 G12 38055 G13 38055 G14
External Soft-Start Current External Timeout Current vs Temperature vs Temperature
5.4 2.1 5.3 2.0 5.2 5.1 1.9 5.0 T CURRENT (µA) 4.9 1.8 AR 4.8 T-ST 1.7 4.7 SOF I SS 4.6 EXTERNAL TIMEOUT CURRENT (µA) 1.6 O 4.5 I FT 4.4 1.5 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 38055 G15 38055 G16 38055fe 6 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 Typical Applications Package Description Revision History Typical Application Related Parts