Datasheet LTC3853 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | Triple Output, Multiphase Synchronous Step-Down Controller |
| Seiten / Seite | 36 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. TK/SS Pull-Up Current. Shutdown … |
| Dateiformat / Größe | PDF / 763 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. TK/SS Pull-Up Current. Shutdown (RUN) Threshold. Regulated Feedback Voltage
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LTC3853
TYPICAL PERFORMANCE CHARACTERISTICS TK/SS Pull-Up Current Shutdown (RUN) Threshold Regulated Feedback Voltage vs Temperature vs Temperature vs Temperature
1.60 1.4 806 1.55 1.3 804 1.50 ON 802 1.2 OFF 1.45 800 1.1 1.40 798 TK/SS CURRENT (µA) RUN PIN VOLTAGE (V) 1.0 1.35 796 REGULATED FEEDBACK VOLTAGE (mV) 1.30 0.9 794 –60 –40 –20 0 20 40 60 80 100 120 140 160 –60 –40 –20 0 20 40 60 80 100 120 140 160 –60 –40 –20 0 20 40 60 80 100 120 140 160 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3853 G17 3853 G18 3853 G19
Oscillator Frequency Undervoltage Lockout Threshold Oscillator Frequency vs Temperature (INTVCC) vs Temperature vs Input Voltage
900 4.25 500 800 VFREQ = INTVCC 4.00 450 700 RISING 3.75 600 V 400 FREQ = 1.2V 500 VOLTAGE (V) CC 3.50 FREQUENCY (kHz) FREQUENCY (kHz) 400 INTV FALLING 350 3.25 300 VFREQ = 0V 200 3.00 300 –60 –40 –20 0 20 40 60 80 100 120 140 160 –50 –25 0 25 50 75 100 125 150 5 10 15 20 25 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V) 3853 G20 3853 G21 3853 G22
Shutdown Current Shutdown Current Quiescent Current vs Input Voltage vs Temperature vs Temperature Without EXTVCC
60 60 6.0 55 5.5 50 50 5.0 45 40 40 4.5 35 4.0 INPUT CURRENT (µA) 30 SHUTDOWN CURRENT (µA) 30 QUIESCENT CURRENT (mA) 3.5 25 20 20 3.0 5 10 15 20 25 –60 –40 –20 0 20 40 60 80 100 120 140 160 –60 –40 –20 0 20 40 60 80 100 120 140 160 INPUT VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3853 G24 3853 G25 3853 G23 3853fc For more information www.linear.com/LTC3853 7 Document Outline Features Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TK/SS Pull-Up Current Shutdown (RUN) Threshold Regulated Feedback Voltage vs Temperature vs Temperature vs Temperature
1.60 1.4 806 1.55 1.3 804 1.50 ON 802 1.2 OFF 1.45 800 1.1 1.40 798 TK/SS CURRENT (µA) RUN PIN VOLTAGE (V) 1.0 1.35 796 REGULATED FEEDBACK VOLTAGE (mV) 1.30 0.9 794 –60 –40 –20 0 20 40 60 80 100 120 140 160 –60 –40 –20 0 20 40 60 80 100 120 140 160 –60 –40 –20 0 20 40 60 80 100 120 140 160 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3853 G17 3853 G18 3853 G19
Oscillator Frequency Undervoltage Lockout Threshold Oscillator Frequency vs Temperature (INTVCC) vs Temperature vs Input Voltage
900 4.25 500 800 VFREQ = INTVCC 4.00 450 700 RISING 3.75 600 V 400 FREQ = 1.2V 500 VOLTAGE (V) CC 3.50 FREQUENCY (kHz) FREQUENCY (kHz) 400 INTV FALLING 350 3.25 300 VFREQ = 0V 200 3.00 300 –60 –40 –20 0 20 40 60 80 100 120 140 160 –50 –25 0 25 50 75 100 125 150 5 10 15 20 25 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V) 3853 G20 3853 G21 3853 G22
Shutdown Current Shutdown Current Quiescent Current vs Input Voltage vs Temperature vs Temperature Without EXTVCC
60 60 6.0 55 5.5 50 50 5.0 45 40 40 4.5 35 4.0 INPUT CURRENT (µA) 30 SHUTDOWN CURRENT (µA) 30 QUIESCENT CURRENT (mA) 3.5 25 20 20 3.0 5 10 15 20 25 –60 –40 –20 0 20 40 60 80 100 120 140 160 –60 –40 –20 0 20 40 60 80 100 120 140 160 INPUT VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3853 G24 3853 G25 3853 G23 3853fc For more information www.linear.com/LTC3853 7 Document Outline Features Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts