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LT8602 датащи(PDF) 7 Page - Linear Technology |
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LT8602 датащи(HTML) 7 Page - Linear Technology |
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7 / 38 page ![]() LT8603 7 8603f For more information www.linear.com/LT8603 TYPICAL PERFORMANCE CHARACTERISTICS T A = 25°C, VIN = PVIN1 = PVIN2 = 12V, EN/UVLO = 3V and PVIN3 = 3.3V unless otherwise noted. Channel 1 Peak Current Limit vs Duty Cycle Channel 2 Peak Current Limit vs Duty Cycle Channel 3 Peak Current Limit vs Duty Cycle Channels 1, 2 Minimum On-Time vs Temperature Channels 1, 2 Minimum Off-Time vs Temperature Channel 3 Minimum Off-Time vs ISW Channels 1, 2 Minimum On-Time vs ISW Channels 1, 2 Minimum Off-Time vs ISW Channel 3 Minimum On-Time vs ISW DUTY CYCLE (%) 0 10 20 30 40 50 60 70 80 90 100 1.5 1.8 2.1 2.4 2.7 3.0 8603 G10 DUTY CYCLE (%) 0 10 20 30 40 50 60 70 80 90 100 2.5 3.0 3.5 4.0 4.5 5.0 Peak Current Limit vs. Duty Cycle 8603 G11 CH 1 CH 2 SWITCH CURRENT (A) 0 0.5 1 1.5 2 2.5 50 60 70 80 90 100 Minimum On Time vs ISW 8603 G13 SWITCH CURRENT (A) 0 0.5 1 1.5 2 2.5 50 60 70 80 90 100 Minimum Off-Time vs ISW 8603 G14 CH 1 CH 2 PVIN3 = 2.6V PVIN3 = 3.3V PVIN3 = 5.5V ISW (A) 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 0 18 36 54 72 90 108 126 144 162 180 Minimum On-Time vs I SW 8603 G15 ISW (A) 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 40 46 52 58 64 70 76 82 88 94 100 Minimum Off-Time vs I SW 8603 G18 DUTY CYCLE (%) 0 10 20 30 40 50 60 70 80 90 100 1.5 2.0 2.5 3.0 3.5 4.0 Duty Cycle 8601 G12 ISW = 1A CH 1 CH 2 TEMPERATURE (°C) –50 –25 0 25 50 75 100 125 150 40 50 60 70 80 90 Minimum On Time vs Temperature 8603 G16 ISW = 1A CH 1 CH 2 TEMPERATURE (°C) –50 –25 0 25 50 75 100 125 150 50 60 70 80 90 100 Minimum Off Time vs Temperature 8603 G17 |
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