Datasheet LT3840 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | Wide Input Range Synchronous Regulator Controller with Accurate Current Limit |
| 页数 / 页 | 24 / 6 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 292 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Enable Pin Current vs Enable
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LT3840
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Enable Pin Current vs Enable UVLO Pin Current vs UVLO Average Current Sense Voltage vs Voltage Voltage Temperature
1.6 5 55 ICTRL = FLOAT 1.4 50 4 1.2 TAGE (mV) 45 40 1.0 3 35 0.8 30 0.6 2 ICTRL = 500mV 25 ENABLE PIN CURRENT (µA) 0.4 UVLO PIN CURRENT (nA) 1 20 0.2 15 AVERAGE CURRENT SENSE VOL 0.0 0 10 0 10 20 30 40 50 60 0 10 20 30 40 50 60 –50 –25 0 25 50 75 100 125 150 ENABLE PIN VOLTAGE (V) UVLO PIN VOLTAGE (V) TEMPERATURE (°C) 3840 G10 3840 G11 3840 G12
Current Monitor (IMON) Voltage Power Good Threshold vs FB Overvoltage Threshold vs vs Temperature Temperature Temperature
1.1 1.4 1.6 VSENSE = 50mV 1.0 1.3 1.5 0.9 FB RISING 0.8 1.2 1.4 PG RISING FB FALLING TAGE (V) 0.7 1.1 1.3 0.6 PG FALLING VSENSE = 25mV IMON VOL 0.5 1.0 FB THRESHOLD (V) 1.2 0.4 POWER GOOD THRESHOLD (V) 0.9 1.1 0.3 0.2 0.8 1.0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3840 G13 3840 G14 3840 G15 3840fa 6 For more information www.linear.com/LT3840 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Enable Pin Current vs Enable UVLO Pin Current vs UVLO Average Current Sense Voltage vs Voltage Voltage Temperature
1.6 5 55 ICTRL = FLOAT 1.4 50 4 1.2 TAGE (mV) 45 40 1.0 3 35 0.8 30 0.6 2 ICTRL = 500mV 25 ENABLE PIN CURRENT (µA) 0.4 UVLO PIN CURRENT (nA) 1 20 0.2 15 AVERAGE CURRENT SENSE VOL 0.0 0 10 0 10 20 30 40 50 60 0 10 20 30 40 50 60 –50 –25 0 25 50 75 100 125 150 ENABLE PIN VOLTAGE (V) UVLO PIN VOLTAGE (V) TEMPERATURE (°C) 3840 G10 3840 G11 3840 G12
Current Monitor (IMON) Voltage Power Good Threshold vs FB Overvoltage Threshold vs vs Temperature Temperature Temperature
1.1 1.4 1.6 VSENSE = 50mV 1.0 1.3 1.5 0.9 FB RISING 0.8 1.2 1.4 PG RISING FB FALLING TAGE (V) 0.7 1.1 1.3 0.6 PG FALLING VSENSE = 25mV IMON VOL 0.5 1.0 FB THRESHOLD (V) 1.2 0.4 POWER GOOD THRESHOLD (V) 0.9 1.1 0.3 0.2 0.8 1.0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3840 G13 3840 G14 3840 G15 3840fa 6 For more information www.linear.com/LT3840 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts