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SM8143 数据表(PDF) 2 Page - Nippon Precision Circuits Inc |
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SM8143 数据表(HTML) 2 Page - Nippon Precision Circuits Inc |
2 / 6 page SM8143A NIPPON PRECISION CIRCUITS—2 BLOCK DIAGRAM PIN DESCRIPTION Note: Brightness and operating current are adjusted with ROCL . EL driving frequency is adjusted with ROCE . Pin number Name I / O Function 1 N . C. – No connection (must be open) 2 C H V I High-voltage DC input 3 N . C. – No connection (must be open) 4 L D R O Booster coil driver output 5 N . C. – No connection (must be open) 6 V S S – Ground 7 N . C. – No connection (must be open) 8 O C L I Coil driver oscillator (oscillator frequency determined by external resistor) 9 O C E I EL driver oscillator (oscillator frequency determined by external resistor) 1 0 E N A I Enab le input (built-in pull-down resistor) 1 1 V D D – Supply 1 2 N . C. – No connection (must be open) 1 3 OUT2 O Output 2 1 4 N . C. – No connection (must be open) 1 5 OUT1 O Output 1 1 6 N . C. – No connection (must be open) VSS OCL OCE VDD CHV LDR OUT2 OUT1 Oscillator for Boosting Switching Circuit Dividing Circuit 1/4 Oscillator for EL driving Dividing Circuit 1/1024 ENA Boosting Block ENA from microcontroller EL sheet 80cm2 < When ENA is logical "H", SM8143A is active. ROCL ROCE Oscillation Block |
类似零件编号 - SM8143 |
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类似说明 - SM8143 |
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