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BM81810MUF-M 데이터시트(PDF) 46 Page - Rohm

부품명 BM81810MUF-M
부품 상세설명  Automotive Panel Power Management IC
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제조업체  ROHM [Rohm]
홈페이지  http://www.rohm.com
Logo ROHM - Rohm

BM81810MUF-M 데이터시트(HTML) 46 Page - Rohm

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TSZ02201-0A3A0AS00510-1-2
© 2020 ROHM Co., Ltd. All rights reserved.
15.May.2020 Rev.001
TSZ22111
• 15 • 001
www.rohm.com
Soft Start Time
BM81810MUF-M has soft start function on AVDD, VGH, VGL and VDD.
Time of the soft start is up to the output voltage reaches the typ Value.
The output voltage typ Value of each block is shown in the following table.
The time setting Soft Start of AVDD is shown in the table below.
Bit
AVDD Soft Start Time
0
0
5 ms
0
1
10 ms
1
0
15 ms
1
1
20 ms
The soft-start time of VGH and VGL are 5ms.
The soft-start time of VDD is 1ms.
The soft-start setting an example of AVDD and VGH are shown in the figure below.
If you change the setting voltage from typ values, occurs error in the soft-start time.
The setting voltage > Typ Value ••• Soft-start will be more slow.
The setting voltage < Typ Value ••• Soft-start will be more faster.
No error of soft-start is occurred for change of frequency.
BLOCK
Soft Start
Output Voltage Typ Value
Soft Start Time
AVDD
10.5 V
Set Register
VGH
18.0 V
5 ms
VGL
-6.0 V
5 ms
VDD
1.2 V
1 ms
Figure 76. Soft-Start Time
AVDD(Typ.)
ex:
Case of AVDD
Time
Error of Soft-Start Time
Soft-Start
Time
Set Voltage> Typ.
AVDD
VGH(Typ.)
ex: Case of VGH
Time
Error of Soft-Start Time
Soft-Start
Time
Set Voltage> Typ.
AVDD(Typ.)
Error of Soft-Start Time


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