Datasheet LT3844 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | High Voltage, Current Mode Switching Regulator Controller with Programmable Operating Frequency |
| 页数 / 页 | 26 / 5 — Typical perForMance characTerisTics. (SENSE + SENSE ) vs. Operating … |
| 文件格式/大小 | PDF / 292 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics. (SENSE + SENSE ) vs. Operating Frequency. Error Amp Reference. VSENSE(CM). vs Temperature
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LT3844
Typical perForMance characTerisTics I + – (SENSE + SENSE ) vs Operating Frequency Error Amp Reference VSENSE(CM) vs Temperature vs Temperature
400 308 1.234 TA = 25°C 306 300 1.233 304 1.232 (µA) 200 302 – ) 1.231 300 100 + + SENSE 298 1.230 0 296 I (SENSE 1.229 294 ERROR AMP REFERENCE (V) –100 OPERATING FREQUENCY (kHz) 1.228 292 –200 290 1.227 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 VSENSE (CM) (V) TEMPERATURE (°C) TEMPERATURE (°C) 3844 G10 3844 G17 3844 G12
Maximum Current Sense VIN UVLO Threshold (Rising) VIN UVLO Threshold (Falling) Threshold vs Temperature vs Temperature vs Temperature
106 4.54 3.86 4.52 104 3.84 4.50 102 4.48 3.82 100 4.46 3.80 98 4.44 UVLO THRESHOLD, RISING (V) UVLO THRESHOLD, FALLING (V) 3.78 96 CURRENT SENSE THRESHOLD (mV) V IN 4.42 V IN 94 4.40 3.76 –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) 3844 G16 3844 G14 3844 G15 3844fc For more information www.linear.com/LT3844 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics I + – (SENSE + SENSE ) vs Operating Frequency Error Amp Reference VSENSE(CM) vs Temperature vs Temperature
400 308 1.234 TA = 25°C 306 300 1.233 304 1.232 (µA) 200 302 – ) 1.231 300 100 + + SENSE 298 1.230 0 296 I (SENSE 1.229 294 ERROR AMP REFERENCE (V) –100 OPERATING FREQUENCY (kHz) 1.228 292 –200 290 1.227 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 VSENSE (CM) (V) TEMPERATURE (°C) TEMPERATURE (°C) 3844 G10 3844 G17 3844 G12
Maximum Current Sense VIN UVLO Threshold (Rising) VIN UVLO Threshold (Falling) Threshold vs Temperature vs Temperature vs Temperature
106 4.54 3.86 4.52 104 3.84 4.50 102 4.48 3.82 100 4.46 3.80 98 4.44 UVLO THRESHOLD, RISING (V) UVLO THRESHOLD, FALLING (V) 3.78 96 CURRENT SENSE THRESHOLD (mV) V IN 4.42 V IN 94 4.40 3.76 –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) 3844 G16 3844 G14 3844 G15 3844fc For more information www.linear.com/LT3844 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts