Datasheet LT3791-1 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 60V 4-Switch Synchronous Buck-Boost Controller |
| Pages / Page | 26 / 5 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| File Format / Size | PDF / 312 Kb |
| Document Language | English |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. INTVCC Dropout Voltage. INTVCC Current Limit
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LT3791-1
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) 37911 G01 37911 G02 37911 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) 37911 G04 37911 G05 37911 G06
V(ISP-ISN) Threshold V(ISP-ISN) Threshold vs VCTRL V(ISP-ISN) Threshold vs VISP vs Temperature
110 108 108 V 100 IN = 12V 106 106 90 80 104 104 70 102 102 (mV) 60 (mV) (mV) 100 100 50 V (ISP-ISN) 40 V (ISP-ISN) 98 V (ISP-ISN) 98 30 96 96 20 VISP = 60V 10 94 94 VISP = 12V VISP = 0V 0 92 92 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) 37911 G07 37911 G08 37911 G09 37911fb For more information www.linear.com/LT3791-1 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications 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) 37911 G01 37911 G02 37911 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) 37911 G04 37911 G05 37911 G06
V(ISP-ISN) Threshold V(ISP-ISN) Threshold vs VCTRL V(ISP-ISN) Threshold vs VISP vs Temperature
110 108 108 V 100 IN = 12V 106 106 90 80 104 104 70 102 102 (mV) 60 (mV) (mV) 100 100 50 V (ISP-ISN) 40 V (ISP-ISN) 98 V (ISP-ISN) 98 30 96 96 20 VISP = 60V 10 94 94 VISP = 12V VISP = 0V 0 92 92 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) 37911 G07 37911 G08 37911 G09 37911fb For more information www.linear.com/LT3791-1 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Typical Application Related Parts
