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SC4808B-2MSTRT Datasheet(PDF) 7 Page - Semtech Corporation

No. de pieza SC4808B-2MSTRT
Descripción Electrónicos  High Performance Dual Ended PWM Controller
PDF  28 Pages
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Fabricante Electrónico  SEMTECH [Semtech Corporation]
Página de inicio  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4808B-2MSTRT Datasheet(HTML) 7 Page - Semtech Corporation

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 2006 Semtech Corp.
www.semtech.com
SC4808B-2
POWER MANAGEMENT
4.200
4.250
4.300
4.350
4.400
4.450
4.500
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Vcc UVLO (Rising)
Vcc UVLO (Falling)
3.60
3.65
3.70
3.75
3.80
3.85
3.90
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Operating Iq, Vcc = 5V
Operating Iq, Vcc = 5.25V
SC4808B-2 Typical Characteristics
(SC4808B-2A)
Iq (start up) vs. Temperature
Iq (operating) vs. Temperature
Reference vs. Temperature
FB to CS Offset vs. Temperature
Current sense vs. Temperature
Vcc UVLO vs. Temperature
400
500
600
700
800
900
1000
1100
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Max Current Sense Signal
Over Current Signal
1.60
1.61
1.62
1.63
1.64
1.65
1.66
1.67
1.68
1.69
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
FB to CS Offset
3.16
3.17
3.18
3.19
3.2
3.21
3.22
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Reference, Vcc = 5V
70.0
75.0
80.0
85.0
90.0
95.0
100.0
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Start up Iq, Vcc = 4V



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