BM81810MUF-M datasheet(56/78 Pages) ROHM | Automotive Panel Power Management IC

부품명	BM81810MUF-M

부품 상세설명	Automotive Panel Power Management IC

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제조업체	ROHM [Rohm]

홈페이지	http://www.rohm.com

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BM81810MUF-M

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TSZ02201-0A3A0AS00510-1-2

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

유사한 부품 번호 - BM81810MUF-M

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BM81810MUF-M 데이터시트(PDF) 56 Page - Rohm

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유사한 부품 번호 - BM81810MUF-M

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