Datasheet LTC3632 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | High Efficiency, High Voltage 20mA Synchronous Step-Down Converter |
| 页数 / 页 | 22 / 5 — 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. Peak Current Trip Threshold
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LTC3632
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Peak Current Trip Threshold Peak Current Trip Threshold Quiescent Supply Current vs RISET vs Input Voltage vs Input Voltage
60 60 14 VIN = 10V VIN = 10V I 50 SET OPEN 50 12 SLEEP 10 40 40 8 30 30 RSET = 500k Y CURRENT (µA) 6 20 20 SUPPL 4 SHUTDOWN ISET = GND V IN 10 10 2 PEAK CURRENT TRIP THRESHOLD (mA) PEAK CURRENT TRIP THRESHOLD (mA) 0 0 0 0 200 400 600 800 1000 1200 0 5 10 15 20 25 30 35 40 45 50 5 15 25 35 45 RISET (kΩ) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3632 G10 3632 G11 3632 G12
Quiescent Supply Current Switch On-Resistance Switch On-Resistance vs Temperature vs Input Voltage vs Temperature
14 8 8 VIN = 10V VIN = 10V 12 7 7 SLEEP 6 10 6 TOP ANCE (Ω) TOP 5 8 5 4 Y CURRENT (µA) 6 4 BOTTOM 3 SUPPL 4 3 V IN SHUTDOWN BOTTOM 2 SWITCH ON-RESIST SWITCH ON-RESISTANCE (Ω) 2 2 1 0 1 0 –40 –10 20 50 80 110 0 10 20 30 40 50 –40 –10 20 50 80 110 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3632 G13 3632 G14 3632 G15
Switch Leakage Current RUN Comparator Threshold vs Temperature Voltage vs Temperature Operating Waveforms
0.30 1.30 VIN = 50V SWITCH 0.25 1.25 RISING VOLTAGE 20V/DIV 0.20 1.20 OUTPUT VOLTAGE 100mV/DIV 0.15 1.15 INDUCTOR FALLING CURRENT 0.10 1.10 50mA/DIV SW = 50V VIN = 48V 20µs/DIV 3632 G18 SWITCH LEAKAGE CURRENT (µA) 0.05 SW = 0V 1.05 VOUT = 5V RUN COMPARATOR THRESHOLD (V) ILOAD = 10mA 0 1.00 –40 –10 20 50 80 110 –40 –10 20 50 80 110 TEMPERATURE (°C) TEMPERATURE (°C) 3632 G16 3632 G17 3632fc 5 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Peak Current Trip Threshold Peak Current Trip Threshold Quiescent Supply Current vs RISET vs Input Voltage vs Input Voltage
60 60 14 VIN = 10V VIN = 10V I 50 SET OPEN 50 12 SLEEP 10 40 40 8 30 30 RSET = 500k Y CURRENT (µA) 6 20 20 SUPPL 4 SHUTDOWN ISET = GND V IN 10 10 2 PEAK CURRENT TRIP THRESHOLD (mA) PEAK CURRENT TRIP THRESHOLD (mA) 0 0 0 0 200 400 600 800 1000 1200 0 5 10 15 20 25 30 35 40 45 50 5 15 25 35 45 RISET (kΩ) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3632 G10 3632 G11 3632 G12
Quiescent Supply Current Switch On-Resistance Switch On-Resistance vs Temperature vs Input Voltage vs Temperature
14 8 8 VIN = 10V VIN = 10V 12 7 7 SLEEP 6 10 6 TOP ANCE (Ω) TOP 5 8 5 4 Y CURRENT (µA) 6 4 BOTTOM 3 SUPPL 4 3 V IN SHUTDOWN BOTTOM 2 SWITCH ON-RESIST SWITCH ON-RESISTANCE (Ω) 2 2 1 0 1 0 –40 –10 20 50 80 110 0 10 20 30 40 50 –40 –10 20 50 80 110 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3632 G13 3632 G14 3632 G15
Switch Leakage Current RUN Comparator Threshold vs Temperature Voltage vs Temperature Operating Waveforms
0.30 1.30 VIN = 50V SWITCH 0.25 1.25 RISING VOLTAGE 20V/DIV 0.20 1.20 OUTPUT VOLTAGE 100mV/DIV 0.15 1.15 INDUCTOR FALLING CURRENT 0.10 1.10 50mA/DIV SW = 50V VIN = 48V 20µs/DIV 3632 G18 SWITCH LEAKAGE CURRENT (µA) 0.05 SW = 0V 1.05 VOUT = 5V RUN COMPARATOR THRESHOLD (V) ILOAD = 10mA 0 1.00 –40 –10 20 50 80 110 –40 –10 20 50 80 110 TEMPERATURE (°C) TEMPERATURE (°C) 3632 G16 3632 G17 3632fc 5 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS