Page 1
Overview
The LC4120NV is an LCD power supply switching IC
that provides 3 input channels and 6 output channels. It is
fabricated in an 80-V high-voltage CMOS process and
features low power dissipation, high speed, and a low
output impedance. This IC is optimal for switching the
row driver LCD drive voltage in a wide range of LCD
products.
Features
• 3 input channels/6 output channels
• Logic voltage: 2.7 to 5.5 V
• Output voltage: 80 V (maximum)
• Output impedance: 110Ω (maximum)
(When VHA– VLA= 60 V)
• Output delay time: 0.5 µs (maximum)
• Operating temperature: –20 to 75°C
• Package: 20-pin SSOP
Package Dimensions
unit: mm
3179A-SSOP20
CMOS IC
31398HA (OT) No. 5912-1/4
SANYO: SSOP20
[LC4120NV]
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
LCD Power Supply Switching IC
LC4120NV
Ordering number : EN5912
Parameter Symbol Conditions Ratings Unit
V
DD
max V
DD
–0.3 to +7.0 V
Maximum supply voltage
V
HA, B–VLA, BVHA, B/VLA, B
–0.3 to +85 V
V
HA/VHB
VHA/V
HB
–0.3 to +45.0 V
V
LA/VLB
VLA/V
LB
–40.0 to +0.3 V
Input voltage V
IN
S1 to S3 –0.3 to VDD+0.3 V
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –40 to +125 °C
Specifications
Absolute Maximum Ratings (
The following conditions must hold at all times: VHA≥ VHB> VDD> VSS> VLB≥ VLA)
Page 2
No. 5912-2/4
LC4120NV
Parameter Symbol Conditions
Ratings
Unit
min typ max
V
DD
V
DD
2.7 5.0 5.5 V
Operating voltage
V
HA, B–VLA, BVHA, B
, V
LA, B
40.0 80.0 V
V
HA
, V
HB
VHA, V
HB
20.0 42.5 V
V
LA
, V
LB
VLA, V
LB
–37.5 –20.0 V
Potential difference
V
HA–VHB
VHA, V
HB
0 5.0 V
V
LA–VLB
VLA, V
LB
0 5.0 V
Input high-level voltage V
IH
S1 to S3 VDD× 0.8 V
DD
V
Input low-level voltage V
IL
S1 to S3 0 VDD× 0.2 V
Output high-level voltage
R
OHA
V
OUT
= VHA– 0.5 : VH1 to VH3 *1 70 110 Ω
R
OHB
V
OUT
= VHB– 0.5 : VH1 to VH3 *1 70 110 Ω
Output low-level voltage
R
OLA
V
OUT
= VLA+ 0.5 : VL1 to VL3 *2 70 110 Ω
R
OLB
V
OUT
= VLB+ 0.5 : VL1 to VL3 *2 70 110 Ω
I
DDOPE
f = 40 kHz, Input signals operating *3 80 µA
Current drain I
HOPE
f = 40 kHz, Input signals operating *3 600 µA
I
HLEAK
f = 40 kHz, Input signals stopped *3 –10 +10 µA
Electrical Characteristics
DC Characteristics at Ta = –20 to 75°C, VSS= 0 V, VDD= 2.7 to 5.5 V unless otherwise specified
(The following conditions must hold at all times: VHA≥ VHB> VDD> VSS> VLB≥ VLA.)
Notes: 1. VHA– VLA= 60 V, VHA– VHB= 1.0 V
2. V
HA
– VLA= 60 V, VLA– VLB= 1.0 V
3. V
HA
– VLA= 60 V, VHA– VHB= VLA– VLB= 1.0 V
Block Diagram
Page 3
No. 5912-3/4
LC4120NV
Pin Assignment
Pin Functions
Pin I/O Function Signal voltage
V
H
1 O High-voltage output 1 VHA/V
HB
VH2 O High-voltage output 2 VHA/V
HB
VH3 O High-voltage output 3 VHA/V
HB
VL1 O Low-voltage output 1 VLA/V
LB
VL2 O Low-voltage output 2 VLA/V
LB
VL3 O Low-voltage output 3 VLA/V
LB
S1 I Logic input 1 VDD/V
SS
S2 I Logic input 2 VDD/V
SS
S3 I Logic input 3 VDD/V
SS
V
HA
High-voltage power supply A
V
HB
High-voltage power supply B
V
LA
Low-voltage power supply A
V
LB
Low-voltage power supply B
V
DD
Logic system power supply
V
SS
Logic system ground
Truth Table
(n = 1, 2, 3)
Input signal Output
Sn V
Hn
V
Ln
H V
HA
V
LA
L V
HB
V
LB
Page 4
PS No. 5912-4/4
LC4120NV
AC Characteristics
This catalog provides information as of March, 1998. Specifications and information herein are subject to
change without notice.
■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
■ Anyone purchasing any products described or contained herein for an above-mentioned use shall:
➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
■ Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.
Parameter Symbol Conditions
Ratings
Unit
min typ max
Output rise time t
TLH
80 160 ns
Output fall time t
THL
80 160 ns
High-level transmission delay time t
PLH
200 500 ns
Low-level transmission delay time t
PHL
200 500 ns
Input rise and fall times t
r/tf
30 ns
Conditions 1 at Ta = –20 to 75°C, VSS= 0 V, VDD= 2.7 to 5.5 V, VHA= 42.5 V, VHB= 37.5 V, VLA= –37.5 V,
VLB= –32.5 V, CL= 50 pF,unless otherwise specified
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