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BD7700GU Datasheet(PDF) 6 Page - Rohm |
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BD7700GU Datasheet(HTML) 6 Page - Rohm |
6 / 13 page Technical Note 6/12 www.rohm.com 2011.04 - Rev.A © 2011 ROHM Co., Ltd. All rights reserved. BD7700GU ● Functional Description 1. “FLASH” and “TORCH” and “Indicate” pin control “FLASH” and “TORCH” select “FLASH” and “TORCH” is selected by “CNT0” and “CNT1” pin. Status is as bellows. CNT1 CNT0 Status 0 0 All LED OFF 0 1 Indicate 1 0 TORCH 1 1 FLASH “FLASH” control “FLASH” status turns “High”, Flash LED Current is occurred, and “FLASH” status turns “Low”, Flash LED Current is OFF. “FLASH” status is set by CNT0 pin = “1” and CNT1 pin = “1”. Flash term is maximum 1s by internal timer. Fig-4. FLASH control and LED Current Fig-5. FLASH control and LED Current (with Timer Limit) CNT0 ILED (0mA) 300mA 1s CNT0 ILED (0mA) 300mA 1s CNT1 CNT1 |
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