sm8144b Nippon Precision Circuits Inc, (NPC), sm8144b Datasheet
sm8144b
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sm8144b Summary of contents
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... OVERVIEW The SM8144B is a transformer-less electroluminescent (EL) driver IC, capable of driving displays size high-efficiency driver that features revised inductor switching transistor ON resistance and output circuit configuration to reduce loss, all in a compact package. A microcontroller interface pin (ENA) is provided, which can be used to control the EL driver ON/OFF function. The device is available in 8-pin VSOP packages ...
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... BLOCK DIAGRAM When ENA is logical "H", SM8144B is active. PIN DESCRIPTION Pin number Name I/O 1 CHV I 2 LDR O 3 VSS – 4 OSC ENA Ip 6 VDD – 7 OUT2 O 8 OUT1 O 1. Built-in pull-down resistor. SM8144B VDD LDR CHV Boosting Block Dividing Circuit ...
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... DD2 Operating temperature T OPR 1 Operating current I DD2 Inductance L LDR 1. Max value is as same as Absolute Maximum Ratings. SM8144B Condition All Input pins CHV pin LDR pin OUT1, OUT2 pin Ta ≤ 70 ° ≤ 85 ° C Condition = 3.0V, Ta ≤ 70 ° C Including inductor current 5.0V, Ta ≤ 70 ° C ...
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... ENA HIGH-level input voltage ENA LOW-level input voltage ENA input current 1 ENA rise time Operating current Stand-by current − 0 ENA ENA SM8144B Symbol Condition CHV V OUTH V OUTL 50mA LDR LDR = 180k Ω OSC1 OSC ...
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... EL sheet size 50cm , Current consumption: 40mA I 0.01µ sheet size 100cm , Current consumption: 80mA I 0.01µF Note: Do not operate the SM8144B with the EL sheet NOT connected (no load to OUT1/OUT2) since the IC will be damaged. SM8144B 0.1µF 100V CHV OUT1 LDR OUT2 470µH ...
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... Customers are requested not to export or re-export, directly or indirectly, the Products to any country or any entity not in compliance with or in violation of the national export administration laws, treaties, orders and regulations. Customers are requested appropriately take steps to obtain required permissions or approvals from appropriate government agencies. SM8144B SEIKO NPC CORPORATION 15-6, Nihombashi-kabutocho, Chuo-ku, ...