Datasheet LTC7860 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | High Efficiency Switching Surge Stopper |
| Pages / Page | 26 / 5 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| File Format / Size | PDF / 843 Kb |
| Document Language | English |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Frequency Foldback % Over
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Text Version of Document
LTC7860
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Frequency Foldback % Over Frequency Over Input Voltage Frequency Over Temperature Feedback Voltage
600 600 120 550 FREQ = OPEN 550 FREQ = OPEN 100 500 500 80 450 450 60 f (kHz) f (kHz) 400 400 40 FREQ = 0V FREQ = 0V FREQUENCY FOLDBACK (%) 350 350 20 300 300 0 0 10 20 30 40 50 60 –75 –25 25 75 125 175 0 200 400 600 800 VIN (V) TEMPERATURE (°C) VFB (mV) 7860 G19 7860 G20 7860 G21
GATE Bias LDO (VIN - VCAP) Load GATE Bias LDO (VIN - VCAP) Current Sense Voltage Over ITH Regulation Dropout Behavior Voltage
0.5 0.1 100 VIN = 5V 90 0.0 0.0 80 –0.5 70 –0.1 –1.0 60 50 –1.5 ) DROPOUT (V) –0.2 ) REGULATION (%) 40 CAP CAP –2.0 30 - V –0.3 - V IN 20 IN –2.5 (V (V –0.4 CURRENT SENSE VOLTAGE (mV) 10 –3.0 0 –3.5 –0.5 –10 0 5 10 15 20 0 5 10 15 20 0 0.4 0.8 1.2 1.6 2 IGATE (mA) IGATE (mA) ITH VOLTAGE (V) 7860 G22 7860 G23 7860 G24
Current Sense Voltage Over SS Pin Pull-Up Current Over TMR Pull-UP Current Over Temperature Temperature Temperature
100 14 –25.0 VSS = 0V 98 12 –27.5 96 10 –30.0 94 8 –32.5 92 SS PULL-UP CURRENT (µA) TMR PULL–UP CURRENT (µA) CURRENT LIMIT SENSE VOLTAGE (mV) 90 6 –35.0 –75 –25 25 75 125 175 –75 –25 25 75 125 175 –75 –50 –25 0 25 50 75 100 125 150 175 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 7860 G27 7860 G25 7860 G26 7860f For more information www.linear.com/LTC7860 5
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Frequency Foldback % Over Frequency Over Input Voltage Frequency Over Temperature Feedback Voltage
600 600 120 550 FREQ = OPEN 550 FREQ = OPEN 100 500 500 80 450 450 60 f (kHz) f (kHz) 400 400 40 FREQ = 0V FREQ = 0V FREQUENCY FOLDBACK (%) 350 350 20 300 300 0 0 10 20 30 40 50 60 –75 –25 25 75 125 175 0 200 400 600 800 VIN (V) TEMPERATURE (°C) VFB (mV) 7860 G19 7860 G20 7860 G21
GATE Bias LDO (VIN - VCAP) Load GATE Bias LDO (VIN - VCAP) Current Sense Voltage Over ITH Regulation Dropout Behavior Voltage
0.5 0.1 100 VIN = 5V 90 0.0 0.0 80 –0.5 70 –0.1 –1.0 60 50 –1.5 ) DROPOUT (V) –0.2 ) REGULATION (%) 40 CAP CAP –2.0 30 - V –0.3 - V IN 20 IN –2.5 (V (V –0.4 CURRENT SENSE VOLTAGE (mV) 10 –3.0 0 –3.5 –0.5 –10 0 5 10 15 20 0 5 10 15 20 0 0.4 0.8 1.2 1.6 2 IGATE (mA) IGATE (mA) ITH VOLTAGE (V) 7860 G22 7860 G23 7860 G24
Current Sense Voltage Over SS Pin Pull-Up Current Over TMR Pull-UP Current Over Temperature Temperature Temperature
100 14 –25.0 VSS = 0V 98 12 –27.5 96 10 –30.0 94 8 –32.5 92 SS PULL-UP CURRENT (µA) TMR PULL–UP CURRENT (µA) CURRENT LIMIT SENSE VOLTAGE (mV) 90 6 –35.0 –75 –25 25 75 125 175 –75 –25 25 75 125 175 –75 –50 –25 0 25 50 75 100 125 150 175 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 7860 G27 7860 G25 7860 G26 7860f For more information www.linear.com/LTC7860 5
