Datasheet LTC7862 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 140V High Efficiency Switching Surge Stopper |
| 页数 / 页 | 32 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 1.7 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Maximum Current Sense. RUN/OVLO Threshold
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LTC7862
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Maximum Current Sense RUN/OVLO Threshold Threshold vs ITH Voltage vs Temperature DRVCC Line Regulation
100 1.40 10 5% DUTY CYCLE 1.35 80 DRVUV = INTV OVLO RISING CC 9 1.30 60 RUN RISING TAGE (mV) TAGE (V) 1.25 40 8 TAGE (V) 1.20 20 VOL 1.15 RUN FALLING CC 7 0 DRV 1.10 RUN/OVLO PIN VOL DRVUV = 0V CURRENT SENSE VOL 6 –20 1.05 OVLO FALLING EXTVCC = 0V –40 1.00 5 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 –75 –50 –25 0 25 50 75 100 125 150 0 15 30 45 60 75 90 105 120 135 150 VITH (V) TEMPERATURE (°C) INPUT VOLTAGE (V) 7862 G10 7862 G11 7862 G12
Shutdown Current Shutdown Current vs Temperature vs Input Voltage Quiescent Current vs Temperature
20 30 2.0 VIN = 12V 18 25 16 1.5 14 20 DRVUV = INTVCC 12 10 15 1.0 DRVUV = 0V 8 10 6 SHUTDOWN CURRENT (µA) 0.5 4 SHUTDOWN CURRENT (µA) VIN = 6.3V QUIESCENT CURRENT (mA) 5 2 0 0 0 –75 –50 –25 0 25 50 75 100 125 150 0 15 30 45 60 75 90 105 120 135 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 7862 G13 7862 G14 7862 G15
Boost Charge Pump Voltage Oscillator Frequency SS Pull-Up Current vs SW Voltage in Pass-Through vs Temperature vs Temperature Mode
600 12.0 10 11.5 9 550 8 FREQ = INTVCC 11.0 500 7 10.5 TAGE (V) 6 450 10.0 5 9.5 4 FREQUENCY (kHz) 400 SS CURRENT (µA) 3 150°C 9.0 25°C (BOOST - SW) VOL 350 2 FREQ = 350kHz –55°C FREQ = 0V 8.5 1 DRVUV = 0V 10MΩ BETWEEN BOOST AND SW 300 8.0 0 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 0 5 10 15 20 25 30 35 40 45 50 55 60 65 TEMPERATURE (°C) TEMPERATURE (°C) SW VOLTAGE (V) 7862 G16 7862 G17 7862 G18 Rev 0 For more information www.analog.com 7 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS TIMING DIAGRAM FUNCTIONAL DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION TYPICAL APPLICATION RELATED PARTS
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Maximum Current Sense RUN/OVLO Threshold Threshold vs ITH Voltage vs Temperature DRVCC Line Regulation
100 1.40 10 5% DUTY CYCLE 1.35 80 DRVUV = INTV OVLO RISING CC 9 1.30 60 RUN RISING TAGE (mV) TAGE (V) 1.25 40 8 TAGE (V) 1.20 20 VOL 1.15 RUN FALLING CC 7 0 DRV 1.10 RUN/OVLO PIN VOL DRVUV = 0V CURRENT SENSE VOL 6 –20 1.05 OVLO FALLING EXTVCC = 0V –40 1.00 5 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 –75 –50 –25 0 25 50 75 100 125 150 0 15 30 45 60 75 90 105 120 135 150 VITH (V) TEMPERATURE (°C) INPUT VOLTAGE (V) 7862 G10 7862 G11 7862 G12
Shutdown Current Shutdown Current vs Temperature vs Input Voltage Quiescent Current vs Temperature
20 30 2.0 VIN = 12V 18 25 16 1.5 14 20 DRVUV = INTVCC 12 10 15 1.0 DRVUV = 0V 8 10 6 SHUTDOWN CURRENT (µA) 0.5 4 SHUTDOWN CURRENT (µA) VIN = 6.3V QUIESCENT CURRENT (mA) 5 2 0 0 0 –75 –50 –25 0 25 50 75 100 125 150 0 15 30 45 60 75 90 105 120 135 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 7862 G13 7862 G14 7862 G15
Boost Charge Pump Voltage Oscillator Frequency SS Pull-Up Current vs SW Voltage in Pass-Through vs Temperature vs Temperature Mode
600 12.0 10 11.5 9 550 8 FREQ = INTVCC 11.0 500 7 10.5 TAGE (V) 6 450 10.0 5 9.5 4 FREQUENCY (kHz) 400 SS CURRENT (µA) 3 150°C 9.0 25°C (BOOST - SW) VOL 350 2 FREQ = 350kHz –55°C FREQ = 0V 8.5 1 DRVUV = 0V 10MΩ BETWEEN BOOST AND SW 300 8.0 0 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 0 5 10 15 20 25 30 35 40 45 50 55 60 65 TEMPERATURE (°C) TEMPERATURE (°C) SW VOLTAGE (V) 7862 G16 7862 G17 7862 G18 Rev 0 For more information www.analog.com 7 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS TIMING DIAGRAM FUNCTIONAL DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION TYPICAL APPLICATION RELATED PARTS