SM8140A EL Driver IC NIPPON PRECISION CIRCUITS INC. OVERVIEW PIN OUT The SM8140A is designed for using as EL (Electronic Luminescence) sheet driver require very low external parts counts, this result that very compact and thin EL driver units can be made. Also this device has the features to use in wider range of applications demanding low quiescent current, low supply voltages, low operating supply currents, simple brightness control and low EMI (Electro-Magnetic Interference) emission due to the inherent smooth driver wave forms. ( Top View ) 14pin SSOP CHV LDR OCL2 ■ ■ ■ ■ ■ ■ ORDERING INFOMATION Device Package SM8140AM 14pin SSOP CF8140A Chip in tray VDD 8 ENA PIN OUT ( Unit : mm ) 0.17 0.20 8.00 8.20 1.80MAX ■ ■ CPO 4.40 6.40 0.30 ■ OCEl CP1 1.50 ■ ■ Specially providing EL driver functions Non-transformer for compact outline Bipolar driving for high power efficiency Very low noise smooth driver wave forms Brightness control with driving frequency change (An external resistance determines the driving frequency) Low power consumption by quiescent current control ON-chip high voltage output MOS transistor Large EL sheet (Exceeding 100 cm2) drivable supply voltage VDD = 2.4V to 3.6V or 5.0V 1.5V and 3V power applicable (Refer to APPLICATION HINTS) Maximum output driver voltage:200VP − P Typical driver frequency:250Hz 14 pin SSOP chip form 7 CP2 0.35 0.10 1.00 0.10 0.10 ■ ■ OCE2 SM8140AM ■ OUT1 OUT2 VSS1 OCL1 FEATURES 14 1 0 10 0.625 0.20 NIPPON PRECISION CIRCUITS—1 SM8140A PAD DIMENSIONS PAD COORDINATES ( UNIT:µm ) 13 12 11 10 9 Y (2500, 2700) 14 8 15 7 6 5 16 (0, 0) 1 2 3 4 X Chip size : 2.50 × 2.70mm Chip thickness : 4000 ± 30µm Pad size : 100 × 100µm Chip reverse side : VSS No. NAME X Y 1 OCE2 360 190 2 OCE1 900 190 3 ENA 1440 190 4 VSS2 2080 190 5 VDD 2310 320 6 CPO 2310 560 7 CP1 2310 1100 8 CP2 2310 1640 9 OUT2 2300 2530 10 OUT1 2100 2530 11 CHV 1900 2530 12 MONG 1700 2530 13 LDR 1500 2530 14 VSS1 190 1600 15 OCL2 190 1040 16 OCL1 190 500 Note : MONG is test pin. MONG and VSS2 are not bonding. NIPPON PRECISION CIRCUITS—2 SM8140A Charge Pump Circuit CP1 OUT2 OUT1 Divider Divider Oscillation Circuit for Voltage Booster Oscillasion Circuit for output OCL1 VSS2 CP2 VSS1 CHV Level Shifter OCE2 CPO High Voltage Switching Circuit OCE1 Enable Circuit OCL2 ENA LDR VDD (MONG) BLOCK DIAGRAM PIN DESCRIPTION SSOP chip Pin Name i/o Function 1 11 CHV i DC high voltage pin − 12 MONG o Monitor gate 2 13 LDR o Step − up inductor driver output 3 14 VSS1 − GND − 4 VSS2 − GND 4 15 OCL2 o 5 16 OCL1 i CR oscillator pin for step − up inductor and charge pump. External resistor at this pin determines oscillator frequency. 6 1 OCE2 i CR oscillator pin for output 7 2 OCE1 o External resistor at this pin determines oscillator frequency Output control pin. Output from OUT1 and OUT2 pins are stopped When "L". 8 3 ENA ip1 9 5 VDD − Power supply pin 10 6 CPO o Charge pump output (Voltage output for driving high voltage MOS) 11 7 CP1 o Charge pump external capacitor pin 12 8 CP2 o Charge pump external capacitor pin 13 9 OUT2 o Output for EL 14 10 OUT1 o Output for EL 1. "ip" defines input pin with pull down internal resistor NIPPON PRECISION CIRCUITS—3 SM8140A ABSOLUTE MAXIMUM RATINGS VSS = 0V, Unless otherwise noted Parameter Symbol Condition Rating unit − 0.3 to + 8.0 V VSS − 0.3 to VDD + 0.3 V Supply voltage range VDD Input voltage range VIN All input pins VCHV CHV pins 0.5 to 120 VLDR LDR pins 0.5 to 120 VOUT1 OUT1 pins 0.5 to 120 VOUT2 OUT2 pins 0.5 to 120 PD Ta ≤ 70°C Output voltage Power dissipation V 200 mW − 55 to 125 °C Storage temperature range TSTG Soldering temperature TSLD Package only 255 °C Soldering time tSLD Package only 10 sec RECOMMENDED OPERATING CONDITIONS VSS = 0V, Unless otherwise noted Parameter Supply voltage range Operating temperature range Operating current2 Using inductor Symbol Condition VDD1 CPO = VDD1 VDD2 TOPR IDD2 Including inductor current, VDD = 3.0V Rating min unit typ max 2.4 − 3.6 V 4.5 − 5.5 V − 30 − 70 °C − 20 100 mA IDD3 Including inductor current, VDD = 5.0V − 25 100 mA LLDR1 fLDR = 32kHz, VDD = 3.0V − 1.0 − mH LLDR2 fLDR = 32kHz, VDD = 5.0V − 1.5 − mH 1. 5V Application hints is different from 3V ones (Refer to APPLICATION HINTS) 2. Max value is as same as Absolute Maximum Ratings ELECTRICAL CHARACTERISTICS Ta = 25 °C, VSS = 0V, VDD = 3.0V, unless otherwise noted Parameter Pin Symbol Supply voltage range VDD VDD CPO VCPO CHV VCHV OUT1/2 Output voltage Condition Rating min typ max 2.4 − 3.6 4.5 5.5 − 0.5 − 100 VOUTH − − 100 OUT1/2 VOUTL − − 0.5 VCPO ≤ 2 × VDD unit V V LDR RLDR VCPO = 6.0V − 5.0 10.0 OCE1/2 fOCE ROCE = 3.9MΩ 5.6 8.0 10.4 OCL1/2 fOCL ROCL = 100kΩ1 179 256 332 Driving frequency OUT1/2 fOUT ROCE = 3.9MΩ2 175 250 325 Hz Output frequency LDR kHz Output resistance Oscillation frequency Ω kHz fLDR ROCL = 100kΩ 22.4 32 41.6 VENAH ENA = "H" VDD + 1.0 − VDD + 0.3 VENAL ENA = "L" VSS − 0.3 − VSS + 1.0 0.45 0.75 1.05 µA Input voltage ENA V Input current ENA IENAH VENAH = 3.0V Operating current VDD IDD1 Excluding inductor current − − 1 mA Stand − by current VDD ISTB ENA = "L" − − 1 µA 1. ROSC determines EL driver frequency 20k to 100kHz 2. ROSC determines EL driver frequency 200 to 500Hz NIPPON PRECISION CIRCUITS—4 SM8140A APPLICATION HINTS + 0.1µF 100V 1.0kΩ LDR OUT2 VSS1 CP2 + CP1 470pF OCL2 3.9MΩ SM8140AM OUT1 1.0mH 100kΩ EL sheet 510Ω CHV OCL1 CPO OCE2 VDD OCEl ENA EL sheet : SPI ULTRA−THIN TYPE EL sheet size : 10 to 20cm 2 Current consumption : 20mA (typ.) 0.01µF + 3.0V Diode : TOSHIBA 1SS250 Coil : MURATA LQH4N102K04M00 + 0.1µF 100V 1.0kΩ 510Ω OUT1 LDR OUT2 VSS1 CP2 + CP1 470pF OCL2 0.47mH 100kΩ 3.9MΩ SM8140AM CHV OCL1 CPO OCE2 VDD OCEl ENA EL sheet EL sheet : SPI ULTRA−THIN TYPE EL sheet size : 20 to 40cm 2 Current consumption : 40mA (typ.) 0.01µF + 3.0V Diode : TOSHIBA 1SS250 Coil : MURATA LQH4N471K04M00 + 0.1µF 100V 1.0kΩ 510Ω LDR OUT2 VSS1 CP2 + CP1 470pF Current consumption : 20mA (typ.) OCL2 1.5V 3.9MΩ SM8140AM OUT1 0.47mH 100kΩ EL sheet CHV OCL1 CPO OCE2 VDD OCEl ENA EL sheet : SPI ULTRA−THIN TYPE EL sheet size : 10 to 20cm 0.01µF + 3.0V Diode : TOSHIBA 1SS250 Coil : MURATA LQH4N471K04M00 NIPPON PRECISION CIRCUITS—5 SM8140A + 0.1µF 100V 1.0kΩ LDR OUT2 VSS1 CP2 SM8140AM OUT1 OCL2 1.5mH 100kΩ 3.9MΩ EL sheet 510Ω CHV EL sheet : SPI ULTRA−THIN TYPE EL sheet size : 40 to 60cm CP1 OCL1 CPO OCE2 VDD OCEl ENA Current consumption : 25mA (typ.) 5.0V Diode : TOSHIBA 1SS250 Coil : MURATA LQH4N152K04M00 + 0.1µF 100V 1.0kΩ 510Ω OUT1 LDR OUT2 VSS1 CP2 OCL2 0.33mH 36kΩ 3.9MΩ SM8140AM CHV EL sheet EL sheet : SPI ULTRA−THIN TYPE EL sheet size : 60 to 80cm CP1 OCL1 CPO OCE2 VDD OCEl ENA Current consumption : 45mA (typ.) 5.0V Diode : TOSHIBA 1SS250 Coil : MURATA LQH4N331K04M00 + 0.1µF 100V 1.0kΩ 510Ω OUT1 LDR OUT2 VSS1 CP2 OCL2 0.47mH 68kΩ 3.9MΩ SM8140AM CHV EL sheet EL sheet : SPI ULTRA−THIN TYPE EL sheet size : 80 to 100cm CP1 OCL1 CPO OCE2 VDD OCEl ENA Current consumption : 55mA (typ.) 5.0V Diode : TOSHIBA 1SS250 Coil : TOKO 817CE471M NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification. The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter, including compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies.. NIPPON PRECISION CIRCUITS INC. NIPPON PRECISION CIRCUITS INC. 4-3, 2-chome Fukuzumi Koto-ku, Tokyo 135-8430, Japan Telephone: 03-3642-6661 Facsimile: 03-3642-6698 NC9612CE 1998.03 NIPPON PRECISION CIRCUITS—6