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BM81810MUF-M 데이터시트(PDF) 49 Page - Rohm

부품명 BM81810MUF-M
부품 상세설명  Automotive Panel Power Management IC
Download  78 Pages
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제조업체  ROHM [Rohm]
홈페이지  http://www.rohm.com
Logo ROHM - Rohm

BM81810MUF-M 데이터시트(HTML) 49 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
40
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75
80
85
90
0
50
100
150
200
250
Load [mA]
AVDD Efficiency
<00>
<01>
<10>
<11>
AVDD Block Function - continued
5.
OCP Detect Level (Register Address 0Bh [6])
SW pin Over Current Protection detection level can be set at 1.0A(Min) or 2.0A(Min).
6.
COMP Adjust (Register Address 0B [7])
Phase Margin can be adjusted.
0
’b: AV_COMP_SET1
1
’b: AV_COMP_SET2
7.
COIL Adjust (Register Address 0Bh [1:0])
You can adjust the settings to match the coil constant to be used.
00
’b:AV_COIL_SET1
01
’b:AV_COIL_SET2
10
’b:AV_COIL_SET3
11
’b:AV_COIL_SET4
Please set the setting of COIL Adjust by frequency setting (fs) and a coil to use.
fOSC[kHz]
Coil[μH]
Coil Adjust
0Bh[1:0]
Comp Adjust
0Bh[7]
525
4.7
00'b
0'b
525
10
11'b
0'b
1050
4.7
00'b
0'b
1050
10
11'b
0'b
2100
4.7
00'b
0'b
2100
10
11'b
0'b
*Please become more than 10
μF/25V product (GRT31CC81E106KE01) x3 with AVDD output capacitor at the time of the use
with a coil of 10μH.
In addition, COMP Adjust coordinates phase constant of the ERRAMP output and is effective to shift to the zero point 25% low
frequency side to produce by the ERRAMP output by making Comp Adjust 1'b and is effective in reducing ringing at the time of
the load response by the responsiveness adjustment with the actual machine.
Figure 80. AVDD Efficiency
(dependent on Slew Rate)
(VIN=3.3V, AVDD=10.5V, Freq=2.1MHz, L=4.7
μH, IAVDD=100mA)
<xx>:AVDD Slew Rate setting


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