Datasheet LTC3783 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | PWM LED Driver and Boost, Flyback and SEPIC Controller |
| 页数 / 页 | 24 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise specified. … |
| 文件格式/大小 | PDF / 311 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise specified. VREF vs Temperature. VREF Line Regulation
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LTC3783
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise specified VREF vs Temperature VREF Line Regulation VREF Load Regulation
1.25 1.235 1.235 1.20 1.233 1.233 1.15 1.231 1.231 (V) (V) (V) VIN = 12V V REF V REF V REF 1.10 1.229 1.229 VIN = 2.5V 1.05 1.227 1.227 1.00 1.225 1.225 –50 0 50 100 150 0 10 20 30 40 0 1 2 3 4 5 TEMPERATURE (°C) VIN (V) IREF (mA) 3783 G01 3783 G02 3783 G03
IQ vs Temperature (PWMIN Low) IQ vs VIN (PWMIN Low) Dynamic IQ vs Frequency
1.6 2.0 30 CL = 3300pF 1.4 1.9 IQ(TOT) = 1.3mA + QG • f 25 1.8 1.2 1.7 20 1.0 1.6 (mA) Q (mA) 0.8 1.5 15 I Q (mA) I Q 0.6 1.4 DYNAMIC I 10 1.3 0.4 1.2 5 0.2 1.1 0 0 0 –75 –25 25 75 125 175 0 10 20 30 40 50 0 0.5 1 1.5 TEMPERATURE (°C) VIN (V) FREQUENCY (MHz) 3783 G04 3783 G05 3783 G06
RUN Thresholds vs VIN RUN Thresholds vs Temperature RT vs Frequency
1.6 1.40 1000 1.5 1.38 RUN HIGH RUN HIGH 1.4 1.36 1.3 RUN LOW 1.34 100 1.2 1.32 1.1 (kΩ) 1.30 1.0 R T 1.28 10 RUN THRESHOLDS (V) 0.9 RUN THRESHOLDS (V) 0.8 1.26 RUN LOW 0.7 1.24 0.6 1.22 1 0 10 20 30 40 –50 0 50 100 150 1 10 100 1000 10000 VIN (V) TEMPERATURE (°C) FREQUENCY (kHz) 3783 G07 3783 G08 3783 G09 3783fb 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Pin Functions Block Diagram Operation Package Description Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise specified VREF vs Temperature VREF Line Regulation VREF Load Regulation
1.25 1.235 1.235 1.20 1.233 1.233 1.15 1.231 1.231 (V) (V) (V) VIN = 12V V REF V REF V REF 1.10 1.229 1.229 VIN = 2.5V 1.05 1.227 1.227 1.00 1.225 1.225 –50 0 50 100 150 0 10 20 30 40 0 1 2 3 4 5 TEMPERATURE (°C) VIN (V) IREF (mA) 3783 G01 3783 G02 3783 G03
IQ vs Temperature (PWMIN Low) IQ vs VIN (PWMIN Low) Dynamic IQ vs Frequency
1.6 2.0 30 CL = 3300pF 1.4 1.9 IQ(TOT) = 1.3mA + QG • f 25 1.8 1.2 1.7 20 1.0 1.6 (mA) Q (mA) 0.8 1.5 15 I Q (mA) I Q 0.6 1.4 DYNAMIC I 10 1.3 0.4 1.2 5 0.2 1.1 0 0 0 –75 –25 25 75 125 175 0 10 20 30 40 50 0 0.5 1 1.5 TEMPERATURE (°C) VIN (V) FREQUENCY (MHz) 3783 G04 3783 G05 3783 G06
RUN Thresholds vs VIN RUN Thresholds vs Temperature RT vs Frequency
1.6 1.40 1000 1.5 1.38 RUN HIGH RUN HIGH 1.4 1.36 1.3 RUN LOW 1.34 100 1.2 1.32 1.1 (kΩ) 1.30 1.0 R T 1.28 10 RUN THRESHOLDS (V) 0.9 RUN THRESHOLDS (V) 0.8 1.26 RUN LOW 0.7 1.24 0.6 1.22 1 0 10 20 30 40 –50 0 50 100 150 1 10 100 1000 10000 VIN (V) TEMPERATURE (°C) FREQUENCY (kHz) 3783 G07 3783 G08 3783 G09 3783fb 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Pin Functions Block Diagram Operation Package Description Related Parts