BD8105FV Просмотр технического описания (PDF) - ROHM Semiconductor
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BD8105FV Datasheet PDF : 13 Pages
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BD8105FV
Technical Note
●Block Operation
1）Serial I/F
The I/F is a 3-line serial (LATCH, CLK, SERIN) style.
12-bit output ON/OFF can be set-up. This is composed of shift register. + 12-bit register.
2）Driver
It is a 12-bit open drain output.
3）TSD (Thermal Shut Down)
To prevent heat damage and overheating, when the chip temperature goes over approximately 175℃, the output turns
off. When the temperature goes back down, normal operation resumes. However, the intended use of the
temperature protection circuit is to protect the IC, so please construct thermal design with the junction temperature
Tjmax under 150℃.
●Application Circuit
VCC
10uF
VBAT
10uF
Micro-
computer
VCC
D0
SDWN
D1
LATCH
D2
RST_B
D3
CLK
D4
SERIN
D5
SEROUT D6
GND
DD78
D9
D10
D11
VCC
10uF
VCC
SDWN
LATCH
D0
D1
D2
RST_B
D3
CLK
D4
SERIN
D5
SEROUT D6
GND
D7
D8
D9
D10
D11
Fig.12
↓IF
Rres
VF
IF= VBAT - VF
Rres + RON
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© 2009 ROHM Co., Ltd. All rights reserved.
5/12
2009.07 - Rev.B
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