Datasheet LT3790 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 60V Synchronous 4-Switch Buck-Boost Controller |
| 页数 / 页 | 28 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 535 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. INTVCC Dropout Voltage. INTVCC Current Limit
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LT3790
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. INTVCC Dropout Voltage INTVCC Current Limit vs Current, Temperature INTVCC Voltage vs Temperature vs Temperature
2.5 5.20 90 TA = 150°C T 80 A = 25°C 5.15 2.0 TA = –50°C 70 5.10 60 (V) 1.5 5.05 V (V) IN = 60V 50 CC INTVCC 5.00 -V V 40 1.0 INTV IN = 12V V IN 4.95 CURRENT LIMIT (mA) 30 CC 4.90 0.5 INTV 20 4.85 10 0 4.80 0 0 10 20 30 40 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 LDO CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3790 G01 3790 G02 3790 G03
INTVCC Load Regulation VREF Voltage vs Temperature VREF Load Regulation
6.00 2.04 2.20 5.75 2.03 2.15 5.50 2.02 2.10 5.25 2.01 2.05 (V) (V) (V) CC 5.00 2.00 2.00 V REF INTV V REF 4.75 1.99 1.95 4.50 1.98 1.90 VIN = 60V 4.25 1.97 VIN = 12V 1.85 VIN = 4.7V 4.00 1.96 1.80 0 10 20 30 40 50 60 70 –50 –25 0 25 50 75 100 125 150 0 50 100 150 200 250 300 350 400 ILOAD (mA) TEMPERATURE (°C) IREF (µA) 3790 G04 3790 G05 3790 G06
V(ISP-ISN) Threshold V(ISP-ISN) Threshold vs VCTRL V(ISP-ISN) Threshold vs VISP vs Temperature
70 70 70 VIN = 12V 68 68 V 60 CTRL = 2V 66 66 50 64 64 62 62 (mV) 40 (mV) (mV) 60 60 30 58 58 V (ISP-ISN) V (ISP-ISN) V (ISP-ISN) 20 56 56 54 54 10 VISP = 60V RISING 52 VISP = 12V FALLING 52 VISP = 0V 0 50 50 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 10 20 30 40 50 60 –50 –25 0 25 50 75 100 125 150 VCTRL (V) VISP (V) TEMPERATURE (°C) 3790 G07 3790 G08 3790 G09 3790fa For more information www.linear.com/LT3790 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Electrical Characteristics Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. INTVCC Dropout Voltage INTVCC Current Limit vs Current, Temperature INTVCC Voltage vs Temperature vs Temperature
2.5 5.20 90 TA = 150°C T 80 A = 25°C 5.15 2.0 TA = –50°C 70 5.10 60 (V) 1.5 5.05 V (V) IN = 60V 50 CC INTVCC 5.00 -V V 40 1.0 INTV IN = 12V V IN 4.95 CURRENT LIMIT (mA) 30 CC 4.90 0.5 INTV 20 4.85 10 0 4.80 0 0 10 20 30 40 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 LDO CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3790 G01 3790 G02 3790 G03
INTVCC Load Regulation VREF Voltage vs Temperature VREF Load Regulation
6.00 2.04 2.20 5.75 2.03 2.15 5.50 2.02 2.10 5.25 2.01 2.05 (V) (V) (V) CC 5.00 2.00 2.00 V REF INTV V REF 4.75 1.99 1.95 4.50 1.98 1.90 VIN = 60V 4.25 1.97 VIN = 12V 1.85 VIN = 4.7V 4.00 1.96 1.80 0 10 20 30 40 50 60 70 –50 –25 0 25 50 75 100 125 150 0 50 100 150 200 250 300 350 400 ILOAD (mA) TEMPERATURE (°C) IREF (µA) 3790 G04 3790 G05 3790 G06
V(ISP-ISN) Threshold V(ISP-ISN) Threshold vs VCTRL V(ISP-ISN) Threshold vs VISP vs Temperature
70 70 70 VIN = 12V 68 68 V 60 CTRL = 2V 66 66 50 64 64 62 62 (mV) 40 (mV) (mV) 60 60 30 58 58 V (ISP-ISN) V (ISP-ISN) V (ISP-ISN) 20 56 56 54 54 10 VISP = 60V RISING 52 VISP = 12V FALLING 52 VISP = 0V 0 50 50 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 10 20 30 40 50 60 –50 –25 0 25 50 75 100 125 150 VCTRL (V) VISP (V) TEMPERATURE (°C) 3790 G07 3790 G08 3790 G09 3790fa For more information www.linear.com/LT3790 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Electrical Characteristics Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts