Datasheet LT8580 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | Boost/SEPIC/Inverting DC/DC Converter with 1A, 65V Switch, Soft-Start and Synchronization |
| 页数 / 页 | 32 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise … |
| 修订版 | B |
| 文件格式/大小 | PDF / 1.4 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise specified. Oscillator Frequency During. Soft-Start
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LT8580
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise specified Oscillator Frequency During Soft-Start Internal UVLO SHDN Pin Current
) 1 2.7 30 NOM 125°C 25°C 2.6 25 –40°C 2.5 20 1/2 2.4 15 VOLTAGE (V) 1/3 PIN CURRENT (µA) V IN 2.3 10 1/4 SHDN 1/5 1/6 2.2 5 INVERTING NONINVERTING CONFIGURATIONS CONFIGURATIONS 0 NORMALIZED OSCILLATOR FREQUENCY (F/F 2.1 0 0 0.2 0.4 0.6 0.8 1 1.2 –50 –25 0 25 50 75 100 125 150 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 FBX VOLTAGE (V) TEMPERATURE (°C) SHDN VOLTAGE (V) 8580 G08 8580 G09 8580 G10
Minimum On Time SHDN Pin Current Active/Lockout Threshold vs Temperature
400 1.40 400 125°C 350 25°C 1.38 350 RECOMMENDED MINIMUM ON TIME –40°C 1.36 300 300 1.34 250 1.32 SHDN RISING 250 200 1.30 200 VOLTAGE (V) PIN CURRENT (µA) 150 1.28 150 SHDN 1.26 SHDN FALLING SHDN 100 MINIMUM ON TIME (NS) 100 1.24 MEASURED MINIMUM ON TIME 50 1.22 50 0 1.20 0 0 5 10 15 20 25 30 35 40 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 SHDN VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 8580 G11 8580 G12 8580 G13 Rev. B For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical 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 specified Oscillator Frequency During Soft-Start Internal UVLO SHDN Pin Current
) 1 2.7 30 NOM 125°C 25°C 2.6 25 –40°C 2.5 20 1/2 2.4 15 VOLTAGE (V) 1/3 PIN CURRENT (µA) V IN 2.3 10 1/4 SHDN 1/5 1/6 2.2 5 INVERTING NONINVERTING CONFIGURATIONS CONFIGURATIONS 0 NORMALIZED OSCILLATOR FREQUENCY (F/F 2.1 0 0 0.2 0.4 0.6 0.8 1 1.2 –50 –25 0 25 50 75 100 125 150 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 FBX VOLTAGE (V) TEMPERATURE (°C) SHDN VOLTAGE (V) 8580 G08 8580 G09 8580 G10
Minimum On Time SHDN Pin Current Active/Lockout Threshold vs Temperature
400 1.40 400 125°C 350 25°C 1.38 350 RECOMMENDED MINIMUM ON TIME –40°C 1.36 300 300 1.34 250 1.32 SHDN RISING 250 200 1.30 200 VOLTAGE (V) PIN CURRENT (µA) 150 1.28 150 SHDN 1.26 SHDN FALLING SHDN 100 MINIMUM ON TIME (NS) 100 1.24 MEASURED MINIMUM ON TIME 50 1.22 50 0 1.20 0 0 5 10 15 20 25 30 35 40 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 SHDN VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 8580 G11 8580 G12 8580 G13 Rev. B For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts