Datasheet LT8390 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | 60V Synchronous 4-Switch Buck-Boost Controller with Spread Spectrum |
| Seiten / Seite | 32 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Dateiformat / Größe | PDF / 1.2 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. V(ISP-ISN) Regulation
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LT8390
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. V(ISP-ISN) Regulation V(ISP-ISN) Regulation vs VCTRL V(ISP-ISN) Regulation vs VISP vs Temperature
125 106 106 104 104 100 102 102 75 (mV) (mV) (mV) 100 100 50 V (ISP-ISN) V (ISP-ISN) 98 V (ISP-ISN) 98 25 96 96 ISP = 0V ISP = 12V ISP = 60V 0 94 94 0 0.25 0.50 0.75 1 1.25 1.50 1.75 2 0 10 20 30 40 50 60 –50 –25 0 25 50 75 100 125 150 VCTRL (V) VISP (V) TEMPERATURE (°C) 8390 G19 8390 G20 8390 G21
Maximum Current Sense V(ISP-ISN) Regulation vs VFB FB Regulation vs Temperature vs Temperature
120 1.03 70 65 100 1.02 60 80 1.01 (mV) 55 (mV) 60 (V) 1.00 50 V FB V (ISP-ISN) 45 40 0.99 CURRENT LIMIT 40 20 0.98 VIN = 4V VIN = 12V 35 BUCK VIN = 60V BOOST 0 0.97 30 0.96 0.97 0.98 0.99 1.00 1.01 1.02 1.03 1.04 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 VFB (V) TEMPERATURE (°C) TEMPERATURE (°C) 8390 G22 8390 G23 8390 G24
FB Overvoltage Threshold FB Short Threshold PGOOD Thresholds
1.20 0.40 20 15 1.15 0.35 UPPER RISING 10 RISING RISING 1.10 0.30 UPPER FALLING 5 FALLING (V) 1.05 (V) 0.25 0 V FB FALLING V FB –5 1.00 0.20 LOWER RISING THRESHOLD OFFSET (%) –10 0.95 0.15 LOWER FALLING –15 0.90 0.10 –20 –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) 8390 G25 8390 G27 8390 G26 8390fa 8 For more information www.linear.com/LT8390 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. V(ISP-ISN) Regulation V(ISP-ISN) Regulation vs VCTRL V(ISP-ISN) Regulation vs VISP vs Temperature
125 106 106 104 104 100 102 102 75 (mV) (mV) (mV) 100 100 50 V (ISP-ISN) V (ISP-ISN) 98 V (ISP-ISN) 98 25 96 96 ISP = 0V ISP = 12V ISP = 60V 0 94 94 0 0.25 0.50 0.75 1 1.25 1.50 1.75 2 0 10 20 30 40 50 60 –50 –25 0 25 50 75 100 125 150 VCTRL (V) VISP (V) TEMPERATURE (°C) 8390 G19 8390 G20 8390 G21
Maximum Current Sense V(ISP-ISN) Regulation vs VFB FB Regulation vs Temperature vs Temperature
120 1.03 70 65 100 1.02 60 80 1.01 (mV) 55 (mV) 60 (V) 1.00 50 V FB V (ISP-ISN) 45 40 0.99 CURRENT LIMIT 40 20 0.98 VIN = 4V VIN = 12V 35 BUCK VIN = 60V BOOST 0 0.97 30 0.96 0.97 0.98 0.99 1.00 1.01 1.02 1.03 1.04 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 VFB (V) TEMPERATURE (°C) TEMPERATURE (°C) 8390 G22 8390 G23 8390 G24
FB Overvoltage Threshold FB Short Threshold PGOOD Thresholds
1.20 0.40 20 15 1.15 0.35 UPPER RISING 10 RISING RISING 1.10 0.30 UPPER FALLING 5 FALLING (V) 1.05 (V) 0.25 0 V FB FALLING V FB –5 1.00 0.20 LOWER RISING THRESHOLD OFFSET (%) –10 0.95 0.15 LOWER FALLING –15 0.90 0.10 –20 –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) 8390 G25 8390 G27 8390 G26 8390fa 8 For more information www.linear.com/LT8390 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts