Datasheet LTC1921 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | Dual –48V Supply and Fuse Monitor |
| 页数 / 页 | 12 / 4 — TYPICAL PERFOR A CE CHARACTERISTICS. Fuse Window Positive Threshold. Fuse … |
| 文件格式/大小 | PDF / 179 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS. Fuse Window Positive Threshold. Fuse Window Negative Threshold. vs Temperature
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LTC1921
W U TYPICAL PERFOR A CE CHARACTERISTICS Fuse Window Positive Threshold Fuse Window Negative Threshold vs Temperature vs Temperature Output RDS(ON) vs Temperature
2.7 –2.0 30 2.5 –2.2 25 OUT A (OUT F = 0V) 2.3 Ω –2.4 ( 20 OUT F, OUT B (OUT A = 0V) 2.1 DS(ON) –2.6 15 1.9 –2.8 10 OUTPUT R FUSE POSITIVE THRESHOLD (V) 1.7 FUSE NEGATIVE THRESHOLD (V) –3.0 5 VA = –35V VB = –35V I = –10mA 1.5 –3.2 0 –50 –30 –10 10 30 50 70 90 –50 –30 –10 10 30 50 70 90 –50 –30 –10 10 30 50 70 90 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1921 G07 1921 G08 1921 G09
Undervoltage Response Time Overvoltage Response Time
10000 10000 TA = 25°C TA = 25°C µs) µs) 1000 1000 RESPONSE TIME ( RESPONSE TIME ( 100 100 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 1.3 1.5 1.7 1.9 2.1 2.3 2.5 SUPPLY STEP FROM UNDERVOLTAGE SUPPLY STEP FROM OVERVOLTAGE RECOVERY THRESHOLD (V) RECOVERY THRESHOLD (V) 1921 G10 1921 G11 1921f 4
W U TYPICAL PERFOR A CE CHARACTERISTICS Fuse Window Positive Threshold Fuse Window Negative Threshold vs Temperature vs Temperature Output RDS(ON) vs Temperature
2.7 –2.0 30 2.5 –2.2 25 OUT A (OUT F = 0V) 2.3 Ω –2.4 ( 20 OUT F, OUT B (OUT A = 0V) 2.1 DS(ON) –2.6 15 1.9 –2.8 10 OUTPUT R FUSE POSITIVE THRESHOLD (V) 1.7 FUSE NEGATIVE THRESHOLD (V) –3.0 5 VA = –35V VB = –35V I = –10mA 1.5 –3.2 0 –50 –30 –10 10 30 50 70 90 –50 –30 –10 10 30 50 70 90 –50 –30 –10 10 30 50 70 90 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1921 G07 1921 G08 1921 G09
Undervoltage Response Time Overvoltage Response Time
10000 10000 TA = 25°C TA = 25°C µs) µs) 1000 1000 RESPONSE TIME ( RESPONSE TIME ( 100 100 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 1.3 1.5 1.7 1.9 2.1 2.3 2.5 SUPPLY STEP FROM UNDERVOLTAGE SUPPLY STEP FROM OVERVOLTAGE RECOVERY THRESHOLD (V) RECOVERY THRESHOLD (V) 1921 G10 1921 G11 1921f 4