Ordering number : EN5912
CMOS IC
LC4120NV
LCD Power Supply Switching IC
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.
Package Dimensions
unit: mm 3179A-SSOP20
[LC4120NV]
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
SANYO: SSOP20
Specifications
Absolute Maximum Ratings (The following conditions must hold at all times: VHA ≥ VHB > VDD > VSS > VLB ≥ VLA)
Parameter Symbol VDD max Maximum supply voltage VHA, B–VLA, B VHA/VHB VLA/VLB Input voltage Operating temperature Storage temperature VIN Topr Tstg VDD VHA, B/VLA, B VHA/VHB VLA/VLB S1 to S3 Conditions Ratings –0.3 to +7.0 –0.3 to +85 –0.3 to +45.0 –40.0 to +0.3 –0.3 to VDD +0.3 –20 to +75 –40 to +125 Unit V V V V V °C °C
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31398HA (OT) No. 5912-1/4
LC4120NV 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.)
Parameter Symbol VDD VHA, B–VLA, B Operating voltage VHA, VHB VLA, VLB Potential difference Input high-level voltage Input low-level voltage Output high-level voltage VHA–VHB VLA–VLB VIH VIL ROHA ROHB ROLA ROLB IDDOPE Current drain IHOPE IHLEAK Notes: 1. VHA – VLA = 60 V, VHA – VHB = 1.0 V 2. VHA – VLA = 60 V, VLA – VLB = 1.0 V 3. VHA – VLA = 60 V, VHA – VHB = VLA – VLB = 1.0 V VDD VHA, B, VLA, B VHA, VHB VLA, VLB VHA, VHB VLA, VLB S1 to S3 S1 to S3 VOUT = VHA – 0.5 : VH1 to VH3 *1 VOUT = VHB – 0.5 : VH1 to VH3 *1 VOUT = VLA + 0.5 : VL1 to VL3 *2 VOUT = VLB + 0.5 : VL1 to VL3 *2 f = 40 kHz, Input signals operating *3 f = 40 kHz, Input signals operating *3 f = 40 kHz, Input signals stopped *3 –10 Conditions Ratings min 2.7 40.0 20.0 –37.5 0 0 VDD × 0.8 0 70 70 70 70 typ 5.0 max 5.5 80.0 42.5 –20.0 5.0 5.0 VDD VDD × 0.2 110 110 110 110 80 600 +10 Unit V V V V V V V V Ω Ω Ω Ω µA µA µA
Output low-level voltage
Block Diagram
No. 5912-2/4
LC4120NV Pin Assignment
Pin Functions
Pin VH1 VH 2 VH 3 VL1 VL2 VL3 S1 S2 S3 VHA VHB VLA VLB VDD VSS I/O O O O O O O I I I Function High-voltage output 1 High-voltage output 2 High-voltage output 3 Low-voltage output 1 Low-voltage output 2 Low-voltage output 3 Logic input 1 Logic input 2 Logic input 3 High-voltage power supply A High-voltage power supply B Low-voltage power supply A Low-voltage power supply B Logic system power supply Logic system ground Signal voltage VHA/VHB VHA/VHB VHA/VHB VLA/VLB VLA/VLB VLA/VLB VDD/VSS VDD/VSS VDD/VSS
Truth Table
Input signal Sn H L Output VHn VHA VHB VLn VLA VLB
(n = 1, 2, 3)
No. 5912-3/4
LC4120NV AC Characteristics
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
Parameter Output rise time Output fall time High-level transmission delay time Low-level transmission delay time Input rise and fall times Symbol tTLH tTHL tPLH tPHL tr/tf Conditions Ratings min typ 80 80 200 200 max 160 160 500 500 30 Unit ns ns ns ns ns
s 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. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: 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: 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. s 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. This catalog provides information as of March, 1998. Specifications and information herein are subject to change without notice. PS No. 5912-4/4
