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| MOSDESIGN SEMICONDUCTOR CORP. EL CONTROLE M5003 EL LAMP DRIVER IC GENERAL DESCRIPTION The M5003 is CMOS chip design for Electro-luminescence Lamp (EL) to light has independent circuit to control switching and EL driver frequency circuit, The switching frequency is decided by CKX, If OSC connect a resistor to VDD, or connect a capacitor to VSS the switching frequency can be adjusted. Delay function can be implement if ON connect a capacitor to VSS. The time of delay is decided by the value of capacitor. FEATURES * DC to AC conversion * Built-in RC oscillator * Two trigger inputs TG : active High TGB : active Low * Adjustable EL driver frequency by CKX * Adjustable Switching frequency by CHOPX APPLICATIONS * EL display BLOCK DIAGRAM OSC Oscillator CKX Divider Inductor Driver CHOP CHOPX Oscillator ON Oscillator Delay Time Divider EL Driver CK TGB TG S1 S2 Control Logic *All specs and applications shown above subject to change without prior notice. ( , ) 1/4 2002-06-25 MOSDESIGN SEMICONDUCTOR CORP. EL CONTROLE M5003 EL LAMP DRIVER IC ABSOLUTE MAXIMUM RATING Parameter Supply Voltage Input Voltage Operating Temperature Storage Temperature Rating -0.3 to 5.0 -0.2~VDD +0.2 -20 to 75 -40 to 90 Unit V V (TA=25) ELECTRICAL CHARACTERISTICS Characteristics Operating Voltage Operating Current Quiescent Current Driving Current CK Frequency CHOP Frequency Oscillator Frequency Sym. VDD IOP ISB IOL IOH FCK FCHOP Fosc Min. 0 Typ. 3 0.1 1 10 100 400 16 25 Max. 3.5 0.5 5 60 Unit V mA A A Hz KHz @VDS=0.5V @VOH=2.5V 30% TOL. 30% TOL. External30% No load Conditions PIN DESCRIPTION Pad Name VDD TG ON OSC CHOPX CKX S2 S1 VSS TGB CK CHOP Description Positive power supply Trigger input active at High Delay option pin, connect cap to VSS Switching freq adjust pin, connect R to VDD Switching freq adjust pin, connect R to VSS EL freq adjust pin, connect cap to VSS EL driving frequency select pin EL driving frequency select pin Negative power supply Trigger input active at Low DC to AC converter output DC to AC converter output 2/4 2002-06-25 MOSDESIGN SEMICONDUCTOR CORP. EL CONTROLE M5003 EL LAMP DRIVER IC PAD ASSIGNMENT & POSITION 7 6 5 4 Y 8 (0,0) X 3 2 1 9 10 11 12 No. 1 2 3 4 5 6 7 8 9 10 11 12 NAME VDD TG ON OSC CKX CHOPX S2 S1 VSS TGB CK CHOP X 429 429 429 429 13 -220 -430 -430 -430 -430 -164 172 UNIT : um Y -488 -263 -30 490 490 490 490 14 -219 -452 -488 -488 * CHIP SIZE ~ 1.3 x 1.5 mm2 * IC substrate should be connected to VDD in PCB(PCB IC VDD) TIMING WAVEFORM TG TGB CHOP CK EL DRIVER FREQUENCY SELECT S1 X X VSS VSS S2 X VSS X VSS CK ( @3V ) 2K Hz 1K Hz 4K Hz 500 Hz CK ( @1.5V ) 500 Hz 250 Hz 1K Hz 125 Hz 3/4 2002-06-25 MOSDESIGN SEMICONDUCTOR CORP. EL CONTROLE M5003 EL LAMP DRIVER IC APPLICATION DIAGRAM (1) Without delay using TG trigger VDD=3V 3mH 13obm (3) With delay using TG trigger VDD=3V 3mH 13obm IN4148 10K IN4148 10K 2N5551 EL 2N5551 2N5551 EL 2N5551 VDD=3V VDD TG ON CHOP CK TGB VSS VDD=3V VDD TG ON S1 CHOP CK TGB VSS 1.3 x 1.5mm2 =VDD M5003 1.3 x 1.5mm2 =VDD M5003 S1 OSC CKX CHOPX S2 OSC CKX CHOPX S2 (2) Without delay using TGB trigger VDD=3V 3mH 13obm (1) With delay, and adjust EL, switching freq. VDD=3V 3mH 13obm IN4148 10K IN4148 10K 2N5551 VDD=3V CHOP EL 2N5551 2N5551 EL 2N5551 CK TGB VSS VDD=3V VDD TG ON S1 CHOP CK TGB VSS 1.3 x 1.5mm2 =VDD M5003 1.3 x 1.5mm2 =VDD VDD OSC CKX CHOPX M5003 S1 OSC CKX CHOPX S2 S2 4/4 2002-06-25 |
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