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S8333 Datasheet(PDF) 21 Page - Seiko Instruments Inc

Part # S8333
Description  STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
PDF  44 Pages
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Manufacturer  SII [Seiko Instruments Inc]
Direct Link  http://www.sii.co.jp
Logo SII - Seiko Instruments Inc

S8333 Datasheet(HTML) 21 Page - Seiko Instruments Inc

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STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
Rev.4.2_01
S-8333 Series
21
Characteristics (Typical Data)
1. Example of Major Temperature Characteristics (Ta
= −40 to +85°C)
ISS1 vs. Ta (VIN
= 3.3 V)
-40
0
20
40
60
80
800
700
600
500
400
300
200
100
0
Ta [°C]
fOSC = 1080 kHz (ROSC = 120 kW)
-20
100
fOSC = 650 kHz (ROSC = 200 kW)
fOSC = 280 kHz (ROSC = 470 kW)
IEXTH vs. Ta (VIN
= 3.3 V)
IEXTL vs. Ta (VIN
= 3.3 V)
-40
0
20
40
60
80
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
Ta [°C]
-20
100
fOSC = 650 kHz, MaxDuty= 73%
(ROSC = 200 kW, RDuty = 300 kW)
-40
0
20
40
60
80
200
180
160
140
120
100
80
60
40
20
0
Ta [°C]
-20
100
fOSC = 650 kHz, MaxDuty = 73%
(ROSC = 200 kW, RDuty = 300 kW)
IFB vs. Ta (VIN
= 3.3 V)
fOSC vs. Ta (VIN
= 3.3 V)
40
0
20
40
60
80
0.10
0.08
0.06
0.04
0.02
0
0.02
0.04
0.06
0.08
0.10
Ta [
C]
20
100
-40
0
20
40
60
80
1400
1200
1000
800
600
400
200
0
Ta [°C]
-20
100
fOSC = 1080 kHz (ROSC = 120 kW)
fOSC = 650 kHz (ROSC = 200 kW)
fOSC = 280 kHz (ROSC = 470 kW)
MaxDuty vs. Ta (VIN
= 3.3 V)
tSS vs. Ta (VIN
= 3.3 V)
40
0
20
40
60
80
100
90
80
70
60
50
40
30
20
10
0
Ta [
C]
20
100
MaxDuty = 88.5% (ROSC = 200 k
RDuty = 100 k)
MaxDuty = 73% (ROSC = 200 k
RDuty = 300 k)
MaxDuty = 47% (ROSC = 200 k
RDuty = 640 k)
40
0
20
406080
25.0
20.0
15.0
10.0
5.0
0
Ta [
C]
20
100
tSS = 20 ms
tSS = 10 ms



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