Datasheet LTC3891 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | Low IQ, 60V Synchronous Step-Down Controller |
| Seiten / Seite | 32 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. SENSE– Pin Input Bias Current. … |
| Dateiformat / Größe | PDF / 691 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. SENSE– Pin Input Bias Current. Shutdown Current vs Input. Oscillator Frequency
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LTC3891
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 VOUT < INTVCC – 0.5V 5 350 0 –100 0 300 –75 –50 –25 0 25 50 75 100 125 150 5 10 15 20 25 30 35 40 45 50 55 60 65 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3891 G23 3891 G22 3891 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 45 50 55 60 65 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3891 G25 3891 G26 3891 G27 3891fa 8 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 Revision History Typical Application 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 VOUT < INTVCC – 0.5V 5 350 0 –100 0 300 –75 –50 –25 0 25 50 75 100 125 150 5 10 15 20 25 30 35 40 45 50 55 60 65 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3891 G23 3891 G22 3891 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 45 50 55 60 65 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3891 G25 3891 G26 3891 G27 3891fa 8 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 Revision History Typical Application Related Parts