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SC4808BIMSTR Datasheet(PDF) 8 Page - Semtech Corporation

No. de pieza SC4808BIMSTR
Descripción Electrónicos  High Performance Dual Ended PWM Controller
PDF  31 Pages
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Fabricante Electrónico  SEMTECH [Semtech Corporation]
Página de inicio  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4808BIMSTR Datasheet(HTML) 8 Page - Semtech Corporation

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 2005 Semtech Corp.
www.semtech.com
SC4808A/B
POWER MANAGEMENT
SC4808A Typical Characteristics (Cont.)
Vcc UVLO Hysteresis vs. Temperature
Line UVLO vs. Temperature
Line UVLO Hysteresis vs. Temperature
Oscillator Frequency vs. Temperature
Synchronization Frequency vs. Temperature
Maximum Duty Cycle vs. Temperature
49.0
49.0
49.1
49.1
49.2
49.2
49.3
49.3
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Maximum Duty Cycle
400
500
600
700
800
900
1000
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Sync. Frequency @ Fosc = 500kHz
200
400
600
800
1000
1200
1400
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Oscillator Frequency 1MHz
Oscillator Frequency 500kHz
4.985
4.990
4.995
5.000
5.005
5.010
5.015
5.020
5.025
5.030
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
LUVLO (Rising)
290
295
300
305
310
315
320
325
330
335
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
LUVLO (Hysteresis)
3.00
3.20
3.40
3.60
3.80
4.00
4.20
4.40
4.60
4.80
5.00
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ta (°C)
Vcc UVLO
(Hysteresis)



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