SC4808B Просмотр технического описания (PDF) - Semtech Corporation
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SC4808B Datasheet PDF : 31 Pages
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SC4808A/B
POWER MANAGEMENT
SC4808A Typical Characteristics
(SC4808A)
100
95
Start up Iq, Vcc = 10V
90
85
80
75
70
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ta (°C)
Iq (start up) vs. Temperature
1.58
1.56
FB to CS Offset
1.54
1.52
1.50
1.48
1.46
1.44
1.42
-40 -25 -10 5
20 35 50 65 80 95 110 125
Ta (°C)
FB to CS Offset vs. Temperature
4.40
4.30
Operating Iq, Vcc = 12V
Operating Iq, Vcc = 15V
4.20
4.10
4.00
3.90
3.80
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ta (°C)
Iq (operating) vs. Temperature
1000
900
Max Current Sense Signal
Over Current Signal
800
700
600
500
400
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ta (°C)
Current sense vs. Temperature
5.110
5.100
Reference
5.090
5.080
5.070
5.060
5.050
5.040
5.030
5.020
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ta (°C)
Reference vs. Temperature
14
Vcc UVLO (Rising)
Vcc UVLO (Falling)
13
12
11
10
9
8
7
-40 -25 -10 5 20 35 50 65 80
Ta (°C)
Vcc UVLO vs. Temperature
95 110 125
2005 Semtech Corp.
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