S-8335A160FT-TB-G Seiko Instruments, S-8335A160FT-TB-G Datasheet - Page 23

• Manufacturer Part Number: S-8335A160FT-TB-G
• Description: IC REG SW 3CH STEP UP 24-TSSOP
• Manufacturer: Seiko Instruments
• Type: Step-Up (Boost), Invertingr

Specifications of S-8335A160FT-TB-G

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 7.48 ~ 13.93 V, -5.44 ~ -10.13 V
• Frequency - Switching: 100kHz
• Voltage - Input: 2.4 ~ 5 V
• Operating Temperature: -20°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP
• Power - Output: 650mW
• Output Voltage: 13.93 V
• Operating Temperature Range: - 20 C to + 70 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Rev.6.0
OP amplifier X
OP amplifier Y
Regulator S Part
Figure 13 VYO Pin Source Current Characteristics
The power supply voltage of OP amplifier X is
generated using DC/DC U so that it is approximately
1.05 times larger than the output voltage of OP
amplifier X. Since the difference between the power
supply voltage and output voltage is kept small, the
power loss is extremely small and efficiency is
increased. Figure 12 shows the output voltage of OP
amplifier X when source current is drawn.
V
OP amplifier Y when source current and sink current are drawn, respectively.
V
regulator S part. The regulator S output V
be set arbitrarily in the range from 1.0 to 2.2 V by
using external resistor RS1 and RS2. V
used as the icon voltage. Use an RS1 value that
matches the temperature characteristics of the panel
by combining a series or parallel resistor with a
thermistor as necessary.
Also, CRS1 is a capacitor for preventing oscillation.
It is required only when the regulator oscillates.
Adjust
values are changed.
confirm that the regulator does not oscillate. Figure
15 shows the voltage V
BAT
BAT
is used for the power supply voltage of OP amplifier Y. Figures 13 and 14 show the output voltage of
1.5
0.5
is used for the power supply voltage of the
_01
2
1
0
the CRS1 value when the RS1 and RS2
240 dot,25 ° C
V
STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR
BAT
SOURCE CURRENT, I
=3.0V
500
REGSO
1000
Using the actual device,
when current is drawn.
OUTY
1500
EV=MIN
EV=MID
EV=MAX
[
µ
A]
REGSO
Seiko Instruments Inc.
REGSO
2000
can be
can
Figure 14 VYO Pin Sink Current Characteristics
Figure 12 OP Amplifier X Output Voltage
1.5
0.5
1.58
1.56
1.54
1.52
1.48
1.46
3.5
2.5
1.5
0.5
1.6
1.5
2
1
0
0
4
3
2
1
0
240 dot,25 ° C
V
240 dot,25°C
V
Figure 15 V
BAT
BAT
SINK CURRENT, I
=3.0V
SOURCE CURRENT, I
=3.0V
− 500
500
V
V
V
500
BAT
BAT
BAT
=2.4V
=3.0V
=5.0V
REGSO
I
OUT
− 1000
1000
1000
[
µ
A]
Characteristics
OUTY
S-8335 Series
− 1500
1500
[
1500
µ
OUTX
A]
EV=MIN
EV=MID
EV=MAX
EV=MIN
EV=MID
EV=MAX
[µA]
− 2000
2000
2000
23