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BM81810MUF-M Folha de dados(PDF) 56 Page - Rohm |
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BM81810MUF-M Folha de dados(HTML) 56 Page - Rohm |
56 / 78 page BM81810MUF-M . 56/75 TSZ02201-0A3A0AS00510-1-2 © 2020 ROHM Co., Ltd. All rights reserved. 15.May.2020 Rev.001 TSZ22111 • 15 • 001 www.rohm.com VDD Block Function VDD Block (Buck DC/DC) can set below functions by EEPROM. 1. VDD Voltage (Register Address 06h [5:0]) VDD voltage can be set by 0.05V step from 0.9V to 3.4V. 2. SWB Switching Frequency (Register Address 0Ch [3:2]) Switching frequency can be set at 525KHz, 1.05MHz, or 2.1MHz. 3. VDD Phase Adjust (Register Address 06h [7]) Phase Margin can be adjusted. 0 ’b : VD_Phase_Set1 1 ’b : VD_Phase_Set2 VIN[V] VDD[V] VDD Phase Adjust 0.9 to 1.25 1'b 1.3 to 0'b 3.3 0.9 to 0'b 5 Set VDD Phase Adjust 1 ’b when On-duty < 25%. 4. VDD Mode Select (Register Address 06h [6]) VDD Block can be switched to DC/DC or LDO Mode. Since this function switch needs to change the application construction, input writing signal by I2C cannot perform Register writing. To write this Register setting, start-up bit(REG0Ch[7]) should be ”0”. Figure 91. VDD Block Diagram VINB ERRAMP PWM PGNDB VDD SWB VDD DRIVER LDO DAC REGISTER DISCHARGE |
Nº de peça semelhante - BM81810MUF-M |
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Descrição semelhante - BM81810MUF-M |
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