s-8333aaca-t8t1g Seiko Instruments Inc., s-8333aaca-t8t1g Datasheet - Page 20

• Manufacturer Part Number: s-8333aaca-t8t1g
• Description: Step-up, For Lcd Bias Supply, 1-channel, Pwm Control Switching Regulator Controller
• Manufacturer: Seiko Instruments Inc.

20
1. Example of Major Temperature Characteristics (Ta = −40 to 85°C)
I
I
I
MaxDuty vs. Ta (V
STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8333 Series
SS1
EXTH
FB
Characteristics (Typical Data)
−0.02
−0.04
−0.06
−0.08
−0.10
−200
−180
−160
−140
−120
−100
vs. Ta (V
0.10
0.08
0.06
0.04
0.02
vs. Ta (V
800
700
600
500
400
300
200
100
100
−80
−60
−40
−20
vs. Ta (V
90
80
70
60
50
40
30
20
10
0
0
0
0
−40
−40
−40
−40
f
(R
OSC
IN
−20
−20
−20
−20
IN
OSC
IN
= 3.3 V)
= 3.3 V)
= 700 kHz, MaxDuty = 73%
MaxDuty = 88.5% (R
MaxDuty = 73% (R
MaxDuty = 47% (R
= 3.3 V)
= 200 kΩ, R
f
f
f
OSC
OSC
OSC
IN
0
0
0
0
= 700 kHz (R
= 286 kHz (R
= 1133 kHz (R
= 3.3 V)
20
20
20
20
Ta [°C]
Ta [°C]
Ta [°C]
Ta [°C]
Duty
OSC
OSC
= 300 kΩ)
OSC
40
40
40
= 200 kΩ, R
= 200 kΩ, R
40
= 200 kΩ, R
OSC
OSC
OSC
= 200 kΩ)
= 510 kΩ)
60
60
60
60
Duty
Duty
= 120 kΩ)
Duty
= 300 kΩ)
= 640 kΩ)
= 100 kΩ)
80
80
80
80
100
100
100
100
Seiko Instruments Inc.
I
f
t
EXTL
OSC
SS
1400
1200
1000
vs. Ta (V
25.0
20.0
15.0
10.0
200
180
160
140
120
100
800
600
400
200
vs. Ta (V
5.0
vs. Ta (V
80
60
40
20
0
0
0
−40
−40
−40
f
(R
OSC
IN
−20
−20
−20
OSC
IN
IN
= 3.3 V)
= 700 kHz, MaxDuty = 73%
= 3.3 V)
= 200 kΩ, R
= 3.3 V)
f
f
f
OSC
OSC
OSC
0
0
0
= 700 kHz (R
= 286 kHz (R
= 1133 kHz (R
20
20
20
Ta [°C]
Duty
Ta [°C]
Ta [°C]
= 300 kΩ)
40
40
40
OSC
OSC
OSC
= 200 kΩ)
= 510 kΩ)
t
t
60
60
60
SS
SS
= 120 kΩ)
= 20 ms
= 10 ms
80
80
80
Rev.2.3
100
100
100
_00