Datasheet LTC3865, LTC3865-1 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | Dual, 2-Phase Synchronous DC/DC Controller with Pin Selectable Outputs |
| 页数 / 页 | 38 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. Shutdown (RUN) Threshold. Regulated … |
| 文件格式/大小 | PDF / 415 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Shutdown (RUN) Threshold. Regulated Feedback Voltage. Oscillator Frequency. vs Temperature
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LTC3865/LTC3865-1
TYPICAL PERFORMANCE CHARACTERISTICS Shutdown (RUN) Threshold Regulated Feedback Voltage Oscillator Frequency vs Temperature vs Temperature vs Temperature
1.5 0.608 1000 900 V 0.606 FREQ = INTVCC 1.4 800 0.604 700 1.3 600 ON 0.602 VFREQ = 1.2V 500 1.2 TOR FREQUENCY (kHz) 0.600 OFF 400 RUN PIN VOLTAGE (V) 300 VFREQ = 0V 1.1 0.598 OSCILLA REGULATED FEEDBACK VOLTAGE (V) 200 1.0 0.596 100 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3865 G15 3865 G16 3865 G17
Undervoltage Lockout Threshold Oscillator Frequency Shutdown Current (INTVCC) vs Temperature vs Input Voltage vs Input Voltage
5 550 50 540 4 RISING 530 40 FALLING 520 3 510 30 500 VOLTAGE (V) CC 2 490 20 FREQUENCY (kHz) INTV 480 INPUT CURRENT (μA) 1 470 10 460 0 450 0 –50 –25 0 25 50 75 100 125 4 10 16 22 28 34 40 0 5 10 15 20 25 30 35 40 TEMPERATURE (°C) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3865 G18 3865 G19 3865 G20
Quiescent Current vs Temperature Shutdown Current vs Temperature without EXTVCC
50 5 V V IN = 15V IN = 15V 40 4 30 3 20 2 SHUTDOWN CURRENT (μA) QUIESCENT CURRENT (mA) 10 1 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3865 G21 3865 G22 3865fb 8
TYPICAL PERFORMANCE CHARACTERISTICS Shutdown (RUN) Threshold Regulated Feedback Voltage Oscillator Frequency vs Temperature vs Temperature vs Temperature
1.5 0.608 1000 900 V 0.606 FREQ = INTVCC 1.4 800 0.604 700 1.3 600 ON 0.602 VFREQ = 1.2V 500 1.2 TOR FREQUENCY (kHz) 0.600 OFF 400 RUN PIN VOLTAGE (V) 300 VFREQ = 0V 1.1 0.598 OSCILLA REGULATED FEEDBACK VOLTAGE (V) 200 1.0 0.596 100 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3865 G15 3865 G16 3865 G17
Undervoltage Lockout Threshold Oscillator Frequency Shutdown Current (INTVCC) vs Temperature vs Input Voltage vs Input Voltage
5 550 50 540 4 RISING 530 40 FALLING 520 3 510 30 500 VOLTAGE (V) CC 2 490 20 FREQUENCY (kHz) INTV 480 INPUT CURRENT (μA) 1 470 10 460 0 450 0 –50 –25 0 25 50 75 100 125 4 10 16 22 28 34 40 0 5 10 15 20 25 30 35 40 TEMPERATURE (°C) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3865 G18 3865 G19 3865 G20
Quiescent Current vs Temperature Shutdown Current vs Temperature without EXTVCC
50 5 V V IN = 15V IN = 15V 40 4 30 3 20 2 SHUTDOWN CURRENT (μA) QUIESCENT CURRENT (mA) 10 1 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3865 G21 3865 G22 3865fb 8