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BM81810MUF-M 데이터시트(PDF) 62 Page - Rohm

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 데이터시트(HTML) 62 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
VGH and VCOM temperature compensation
VCOM + VCOM
(CAL) (COLD)
VCOM
(CAL)
Ta[℃]
VGH
(HOT)
VGH + VGH
(HOT) (COLD)
Fh
Eh
Dh
Ch
Bh
Ah
9h
8h
7h
6h
5h
4h
3h
2h
1h
0h
Ta[℃]
Fh
Eh
Dh
Ch
Bh
Ah
9h
8h
7h
6h
5h
4h
3h
2h
1h
0h
Ta[℃]
VGH[V]
NTC[V]
VCOM[V]
1.25V
0.5V
NTC Function can adjust VGH, VCOM voltage depending on NTC voltage (VNTC).
4 bit ADC is used to detect NTC voltage.
When NTC pin voltage VNTC
≤ 0.5V, NTC function will judge as HOT setting.
In this case, VGH and VCOM output voltage can be calculated by below formula.
VGH = VGH (HOT)
VCOM = VCOM (CAL)
When NTC pin voltage VNTC
≥ 1.25V, NTC function will judge as COLD setting.
VGH = VGH (HOT) +
ΔVGH (COLD)
VCOM = VCOM (CAL)
– ΔVCOM (COLD)
When NTC pin voltage is 0.5V < VNTC < 1.25V, VGH and VCOM can be estimated by below formula.
Figure 103. NTC Function


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