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| SM8141 NIPPON PRECISION CIRCUITS INC. EL Sheet Driver OVERVIEW The SM8141 is a transformer-less electroluminescent (EL) sheet lamp driver, capable of driving sheets up to 50cm2 in size. It employs built-in high withstand voltage output MOS transistors and requires few external components, making it ideal for compact driver units in portable equipment. PINOUT 8pin VSOP (TOP VIEW) CHV LDR VSS 1 2 3 4 8 7 OUT1 OUT2 VDD OCE FEATURES s s s s s s s 8141A 6 5 OCL s s s s s Dedicated EL driver 50cm2 maximum EL sheet drive capability Noise-less smooth drive waveform Two oscillators (EL and coil)(SM8141A) Stand-by function (SM8141B) High-efficiency MOS transistor driver Dual supply operation possible (See TYPICAL APPLICATIONS) 2.0 to 5.5V supply operation 200Vp-p maximum drive voltage 250Hz standard drive frequency 8-pinVSOP package Chip form CHV LDR VSS OSC 1 2 3 4 8 7 OUT1 OUT2 VDD ENA 8141B 6 5 PACKAGE DIMENSIONS (Unit : mm) ORDERING INFORMATION DEVICE S M 8 1 4 1 AV SM8141BV CF8141A CF8141B PA C K A G E 8pin V S O P 8pin V S O P Chip form Chip form 0 to 10 4.4 0.2 6.4 0.3 0.575 typ 3.1 0.3 0.15 -0.05 +0.1 0.10 0.22 0.1 0.1 0.05 0.65 1.15 0.05 0.12 M NIPPON PRECISION CIRCUITS--1 0.5 0.2 SM8141 PAD DIMENSIONS (Unit : mm) (1800,1300) 7 6 5 4 Y 8 1 NPC SA8141 3 2 (0,0) X Chip size : 1.80 x 1.30 (mm) Chip thickness : 300 ( m ) Chip base : V S S PIN DESCRIPTION * SM8141A Pin number 1 2 3 4 5 6 7 8 P ad number 6 7 8 1 2 3 4 5 P ad dimensions Name X (m) CHV LDR VSS OCL OCE VDD OUT2 OUT1 635 435 180 180 1620 1620 1650 1110 Y (m) 1150 1150 420 180 180 420 1120 1120 I O - I I - O O High-voltage DC input Booster coil driver output Ground Coil driver oscillator (oscillator frequency determined by external variable resistor) EL driver oscillator (oscillator frequency determined by external variable resistor) Supply Output 2 Output 1 I/O Function * SM8141B Pin number 1 2 3 4 5 6 7 8 P ad number 6 7 8 1 2 3 4 5 P ad dimensions Name X (m) CHV LDR VSS OSC ENA VDD OUT2 OUT1 635 435 180 180 1620 1620 1650 1110 Y (m) 1150 1150 420 180 180 420 1120 1120 I O - I I - O O High-voltage DC input Booster coil driver output Ground Coil and EL driver oscillator (oscillator frequency determined by external variable resistor) E n a ble input (built-in pull-down resistor) Supply Output 2 Output 1 I/O Function NIPPON PRECISION CIRCUITS--2 SM8141 BLOCK DIAGRAM * SM8141A OUT1 OUT2 Divider VDD CHV LDR High Voltage Switching Circuit Divider Oscillation Circuit for Voltage Booster Oscillasion Circuit for output * SM8141B OUT1 OUT2 Divider VDD OCL CHV LDR High Voltage Switching Circuit Divider Oscillation Circuit for boosting voltage and EL drive OSC NIPPON PRECISION CIRCUITS--3 ENA VSS OCE VSS SM8141 SPECIFICATIONS Absolute Maximum Ratings VSS = 0 V P arameter Supply voltage range Input voltage range Symbol VDD V IN VCHV Output voltage VLDR VOUT1/2 Storage temperature range Pow er dissipation Soldering temperature Soldering time TSTG PD TSLD tS L D T a 85 C All Input pins CHV pin LDR pin OUT1 , OUT2 pin Condition Rating - 0.3 to 7.0 V S S - 0.3 to V D D + 0.3 0.5 to 120 0.5 to 120 0.5 to 120 - 55 to 125 100 255 10 Unit V V V V V C mW C s Recommended Operating Conditions VSS = 0 V Rating P arameter Supply voltage Operating temperature Operating current 1 Coil inductance Symbol VDD TO P R ID D 2 LLDR2 Including coil current, V D D = 3.0V Including coil current, V D D = 5.0V fL D R = 64 kHz Condition min 2.0 - 40 - - - typ 3.0 - - - 0.47 max 5.5 85 60 mA 36 - mH V C Unit 1. Max value is as same as Absolute Maximum Ratings. NIPPON PRECISION CIRCUITS--4 SM8141 DC Characteristics Ta = 25 C, VSS = 0 V, VDD = 3.0 V unless otherwise noted Rating P arameter Supply voltage CHV output voltage OUT1, OUT2 HIGH-level output voltage O U T 1 , O U T 2 L OW -level output voltage LDR output resistance OCE oscillator frequency A OCE oscillator frequency range OCL oscillator frequency A OCL oscillator frequency range OSC oscillator frequency B OSC oscillator frequency range OUT1, OUT2 output frequency A/B OUT1, OUT2 output frequency range LDR inductance driver frequency A/B LDR inductance driver frequency range ENA HIGH-level input voltage B E N A L OW -level input voltage ENA input current Operating current Stand-by current ENA r ise time B A/B B B Ver. A/B A/B A/B A/B A/B Symbol VDD VCHV VOUTH VOUTL R LDR fO C E 1 fO C E 2 fO C L 1 fO C L 2 fO S C 1 fO S C 2 fO U T 1 fO U T 2 fL D R 1 fL D R 2 VENAH VENAL IE N A H ID D 1 IS T B tE N A ENA = "H", V D D = 2.0 to 5.5V ENA = "L", V D D = 2.0 to 5.5V V E N A H = 3.0V, V D D = 3.0V Excluding coil current ENA = "L" VENAL VENAH R O C L /R O S C = 200 k R O C E /R O S C = 200 k R O S C = 200 k R O C L = 200 k IL D R = 50 mA R O C E = 200 k Condition min 2.0 0.5 - - - 205 32 205 32 205 32 200 31 51 8 V D D - 0.5 V S S - 0.3 2.0 - - - typ 3.0 - - - 8.0 256 - 256 - 256 - 250 - 64 - - - 4.0 - - - max 5.5 100 100 0.5 12.0 307 kHz 1024 307 kHz 1024 307 kHz 1024 300 Hz 1000 77 kHz 256 V D D + 0.3 V S S + 0.5 6.0 1 1 100 V A mA A ms V V V V Unit VDD - 0.5 VSS VSS + 0.5 VDD tENA Rise time NIPPON PRECISION CIRCUITS--5 SM8141 TYPICAL APPLICATIONS * SM8141A EL size:20cm to 30cm Current Consumption 20mA SM8141A 1 CHV OUT1 OUT2 VDD OCE 8 7 6 5 2 2 EL sheet 0.1F 100V 2 LDR 3 VSS 4 OCL 0.47mH 200k 0.01F Cbypass 200k 3.0V Diode:TOSHIBA 1SS250 Coil:MURATA LQH4N471K04M00 EL size:10cm to 15cm Current Consumption 20mA SM8141A 1 CHV OUT1 OUT2 VDD OCE 8 7 6 5 2 2 EL sheet 0.1F 100V 2 LDR 3 VSS 4 OCL 0.47mH 390k 0.01F Cbypass 200k 1.5V 3.0V Diode:TOSHIBA 1SS250 Coil:MURATA LQH4N471K04M00 EL size:30cm to 50cm Current Consumption 40mA SM8141A 1 CHV OUT1 OUT2 VDD OCE 8 7 6 5 2 2 EL sheet 0.1F 100V 2 LDR 3 VSS 4 OCL 0.47mH 390k 0.01F Cbypass 3.0V Diode:TOSHIBA 1SS250 Coil:MURATA LQH4N471K04M00 200k NIPPON PRECISION CIRCUITS--6 SM8141 * SM8141B EL size 20cm to 30cm Current Consumption 20mA SM8141B 1 CHV OUT1 OUT2 VDD ENA 8 7 6 5 2 2 EL sheet 0.1F 100V 2 LDR 3 VSS 4 OSC 0.47mH 200k 0.01F Cbypass 3.0V Diode:TOSHIBA 1SS250 Coil:MURATA LQH4N471K04M00 EL size 10cm to 15cm Current Consumption 20mA SM8141B 1 CHV OUT1 OUT2 VDD ENA 8 7 6 5 2 2 EL sheet 0.1F 100V 2 LDR 3 VSS 4 OSC 0.22mH 200k 0.01F Cbypass 1.5V 3.0V Diode:TOSHIBA 1SS250 Coil:MURATA LQH4N221K04M00 EL size 30cm to 50cm Current Consumption 40mA SM8141B 1 CHV OUT1 OUT2 VDD ENA 8 7 6 5 2 2 EL sheet 0.1F 100V 2 LDR 3 VSS 4 OSC 0.22mH 200k 0.01F Cbypass 3.0V Diode:TOSHIBA 1SS250 Coil:MURATA LQH4N221K04M00 NIPPON PRECISION CIRCUITS--7 SM8141 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 fo r 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 expor t controls on the distribution or dissemination of the products. Customers shall not expor t, directly or indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies. NIPPON PRECISION CIRCUITS INC. 4-3, Fukuzumi 2-chome Koto-ku, Tokyo 135-8430, Japan Telephone: 03-3642-6661 Facsimile: 03-3642-6698 NC9710DE 1999.10 NIPPON PRECISION CIRCUITS INC. NIPPON PRECISION CIRCUITS--8 |
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