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BD8149MUV-E2 Datasheet(PDF) 10 Page - Rohm |
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BD8149MUV-E2 Datasheet(HTML) 10 Page - Rohm |
10 / 21 page Technical Note 10/17 BD8149MUV www.rohm.com 2016.08 - Rev.B © 2016 ROHM Co., Ltd. All rights reserved. < Explanation of Auto-read trigger signal > (1) In case auto-read starts by VDD power supply input Auto-read will start after Power ON Reset clearance. Gamma output voltage outputs a voltage matching the register setting synchronously after VCC voltage and REFIN voltage input. (※) The data reading time by auto-read is 3msec. Should maintain EN_AR=High during that time. SETTING ・ SLAVE/AR = High ・ VDD input with the EN_AR pin is shorted to VDD pin (2) In case auto-read starts by EN_AR Auto-read will start with EN_AR=High. Auto-read timing can be set optionally at the timing with EN_AR=High. Gamma output voltage outputs a voltage matching a Register setting synchronously after VCC voltage and REFIN voltage input Data reading time by auto-read is 3msec. Should maintain EN_AR=High during that time. SETTING ・ SLAVE/AR = High ・ EN_AR = Low ⇒ High EN_AR VDD VCC Gamma voltage is outputted after VCC UVLO release (※) OUT Auto-read starts with Power ON Reset clearance Read completion 3 msec Hi-z EN_AR VDD VCC Gamma voltage is outputted after VCC UVLO release. (※) OUT Auto-read starts with EN_AR=High Read completion 3 msec Hi-z ( ※ ) The case VCC is inputted after read completion (※) The case VCC is inputted after read completion |
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