Datasheet LTC3807 (Analog Devices) - 8
| Fabricante | Analog Devices |
| Descripción | Low IQ, Synchronous Step-Down Controller with 24V Output Voltage Capability |
| Páginas / Página | 34 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. SENSE– Pin Input Bias Current. … |
| Formato / tamaño de archivo | PDF / 572 Kb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS. SENSE– Pin Input Bias Current. Shutdown Current vs Input. Oscillator Frequency
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Versión de texto del documento
LTC3807
TYPICAL PERFORMANCE CHARACTERISTICS SENSE– Pin Input Bias Current Shutdown Current vs Input Oscillator Frequency vs Temperature Voltage vs Temperature
800 30 600 700 VOUT > INTVCC + 0.5V 25 550 FREQ = INTVCC 600 500 20 500 400 15 450 300 – CURRENT (µA) 200 10 FREQUENCY (kHz) 400 SENSE 100 SHUTDOWN CURRENT (µA) FREQ = GND V 5 350 OUT < INTVCC – 0.5V 0 –100 0 300 –75 –50 –25 0 25 50 75 100 125 150 5 10 15 20 25 30 35 40 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3807 G23 3807 G22 3807 G24
Undervoltage Lockout Threshold Oscillator Frequency vs Input vs Temperature Voltage Shutdown Current vs Temperature
4.2 356 22 FREQ = GND VIN = 12V 4.1 354 20 18 4.0 352 RISING 16 3.9 350 VOLTAGE (V) CC FALLING 14 3.8 TOR FREQUENCY (kHz) 348 INTV 12 SHUTDOWN CURRENT (µA) 3.7 OSCILLA 346 10 3.6 344 8 –75 –50 –25 0 25 50 75 100 125 150 5 10 15 20 25 30 35 40 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3807 G25 3807 G26 3807 G27
Total Input Supply Current vs EXTVCC Switchover and INTVCC Input Voltage Voltages vs Temperature INTVCC vs INTVCC Load Current
300 6.0 5.5 FIGURE 12 CIRCUIT 5.8 5.3 250 5.6 5.1 V 200 5.4 4.9 IN = 5.5V VOLTAGE (V) 5.2 INTVCC 4.7 CC (V) 150 5.0 4.5 300µA LOAD EXTV V CC Y CURRENT (µA) CC RISING 4.8 INT 4.3 VIN = 5V 100 AND INTV 4.6 EXTV SUPPL CC FALLING 4.1 NO LOAD CC 4.4 3.9 50 EXTV 4.2 3.7 0 4.0 3.5 5 10 15 20 25 30 35 40 –75 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 50 60 70 80 90 100 INPUT VOLTAGE (V) TEMPERATURE (°C) INTVCC LOAD CURRENT (mA) 3807 G10 3807 G11 3807 G12 3807fa 8 For more information www.linear.com/LTC3807 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Package Description Revision History Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS SENSE– Pin Input Bias Current Shutdown Current vs Input Oscillator Frequency vs Temperature Voltage vs Temperature
800 30 600 700 VOUT > INTVCC + 0.5V 25 550 FREQ = INTVCC 600 500 20 500 400 15 450 300 – CURRENT (µA) 200 10 FREQUENCY (kHz) 400 SENSE 100 SHUTDOWN CURRENT (µA) FREQ = GND V 5 350 OUT < INTVCC – 0.5V 0 –100 0 300 –75 –50 –25 0 25 50 75 100 125 150 5 10 15 20 25 30 35 40 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3807 G23 3807 G22 3807 G24
Undervoltage Lockout Threshold Oscillator Frequency vs Input vs Temperature Voltage Shutdown Current vs Temperature
4.2 356 22 FREQ = GND VIN = 12V 4.1 354 20 18 4.0 352 RISING 16 3.9 350 VOLTAGE (V) CC FALLING 14 3.8 TOR FREQUENCY (kHz) 348 INTV 12 SHUTDOWN CURRENT (µA) 3.7 OSCILLA 346 10 3.6 344 8 –75 –50 –25 0 25 50 75 100 125 150 5 10 15 20 25 30 35 40 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3807 G25 3807 G26 3807 G27
Total Input Supply Current vs EXTVCC Switchover and INTVCC Input Voltage Voltages vs Temperature INTVCC vs INTVCC Load Current
300 6.0 5.5 FIGURE 12 CIRCUIT 5.8 5.3 250 5.6 5.1 V 200 5.4 4.9 IN = 5.5V VOLTAGE (V) 5.2 INTVCC 4.7 CC (V) 150 5.0 4.5 300µA LOAD EXTV V CC Y CURRENT (µA) CC RISING 4.8 INT 4.3 VIN = 5V 100 AND INTV 4.6 EXTV SUPPL CC FALLING 4.1 NO LOAD CC 4.4 3.9 50 EXTV 4.2 3.7 0 4.0 3.5 5 10 15 20 25 30 35 40 –75 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 50 60 70 80 90 100 INPUT VOLTAGE (V) TEMPERATURE (°C) INTVCC LOAD CURRENT (mA) 3807 G10 3807 G11 3807 G12 3807fa 8 For more information www.linear.com/LTC3807 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Package Description Revision History Related Parts