Datasheet LT8390A (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 60V 2MHz Synchronous 4-Switch Buck-Boost Controller with Spread Spectrum |
| 页数 / 页 | 30 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 1.1 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. V(ISP-ISN) Regulation
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LT8390A
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) 8390a G19 8390a G20 8390a 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) 8390a G22 8390a G23 8390a 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) 8390a G25 8390a G27 8390a G26 8390afa 8 For more information www.linear.com/LT8390A Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description 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) 8390a G19 8390a G20 8390a 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) 8390a G22 8390a G23 8390a 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) 8390a G25 8390a G27 8390a G26 8390afa 8 For more information www.linear.com/LT8390A Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts