SANYO LA5312V Datasheet
Ordering number: EN5386
Monolithic Linear IC
LA5312V
Variable Divided Voltage Generator for LCDs
Overview
The LA5312V is a variable divided voltage generator IC for
multiple drive of LCD matrix.
Package Dimensions
unit : mm
3179-SSOP20
[LA5312V]
Features
.
Power supply for variable bias LCD drive
(1/5 to 1/19 bias available by internal resistors)
.
Four voltage outputs generated by four operational
amplifiers.
.
Low current drain (0.18 mA typ.)
.
Miniflat package for miniaturization.
SANYO : SSOP20
Specifications
Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Maximum output current I
Allowable power dissipation Pd max 330 mW
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –30 to +125 °C
max VCC–V
EE
max V1 – V4 *Internal mA
OUT
EE
36 V
Note 1: Continuous operation (without damage) is guaranteed in the above ranges.
Note 2: *The maximum output current is the value stipulated under the test conditions on page 4.
Note 3: Output pins V1 to V4-to-V
or GND short not exceeding 1 ms is acceptable. (|VCC–VEE|<35V)
CC
Operating Conditions at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Supply voltage V
Input voltage V
Output current
Note 4: Set VCCand VEEso that |V1| and |VEE– V4| are 1 V or more.
EE
REF
I
1,2 V1, V2 –0.5 to +5 mA
OUT
I
3,4 V3, V4 –10 to +5 mA
OUT
VCC–V
V
EE
^ VEE:VCC–V
REF
REF
–35.5 to –6 V
–35 to –6 V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
53096HA(II) No.5386-1/5
LA5312V
Operating Characteristics at Ta = 25°C, VCC–VEE=20V,V
Parameter Symbol Conditions min typ max Unit
Current drain I
Input current I
CC,IEE
STR
Ra1 V2 / V1 1.96 2.00 2.04 —
Ra2 (V
Output voltage ratio
Rb1 V
Rb2 V
Rb3 V
Rb4 V
R
Internal resistance ratio
R
R
R
Resistance value R
nV1 +0.1mA < I
nV2 +0.1mA < I
nV3 +0.1mA < I
nV4 +0.1mA < I
Load regulation
–nV1 –0.5 mA < I
–nV2 –0.5 mA < I
–nV3 –10 mA < I
–nV4
X
X
X
X
STR=5V:VCC,V
EE
STR = 5 V : STR 9 12 µA
–V3)/(V
REF
/ V1 11.64 12.00 12.36 —
REF
/ V2 5.82 6.00 6.18 —
REF
/(V
REF
REF
/(V
REF
4 and VIN3
X
REF
1
Referenced to R across
2 12 —
3 14 —
R
4 15 —
– V4) 1.96 2.00 2.04 —
REF
– V3) 5.82 6.00 6.18 —
– V4) 11.64 12.00 12.36 —
1–RX2
:R
X
:R
1–RX3
X
:R
1–RX4
X
:R
1–VIN3
X
R value when voltage is applied across R
V
3is0.5V:RX4–VIN3
IN
–10 mA < I
(Source I
1 < +5 mA : V1 ±20 mV
OUT
2 < +5 mA : V2 ±20 mV
OUT
3 < +5 mA : V3 ±20 mV
OUT
4 < +5 mA : V4 ±20 mV
OUT
1 < –0.1 mA : V1 ±20 mV
OUT
2 < –0.1 mA : V2 ±20 mV
OUT
3 < –0.1 mA : V3 ±20 mV
OUT
4 < –0.1 mA : V4
OUT
is negative and sink I
OUT
=VEE,RX=8R
REF
4 and
X
is positive).
OUT
0.18 0.3 mA
8—
30 kΩ
±20 mV
Allowable power dissipation, Pd max – mW
Ambient temperature, Ta – °C
No.5386-2/5
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