LC79451KB Datasheet, PDF (36/38 Pages) ON Semiconductor – Controller and Driver

LC79451KB
The following shows a connection example of SPI interface and charge-pump pin, when you use these two devices
and share the charge-pump voltage.
The figure omits the capacitor connection of the power supply.
Please set CP_F12: 11 = (0, 1) (control register 1) to the slave side.
Please input START command of control register 4 to slave device at the same time input to master device.
Controller
VSS
VDD
VDD2
LC79451KB
ZVDD
ZVSS
TEST
RESET
VSS
ID1
ID2
VDD
IFSEL
VSS
SPIDRW
CS
SDA
SCL
TESTLOUT
TESTAOUT
BUSY
DAOUT
VDD2
C01A
C01B
VOUT0
C11A
C11B
VOUT1
C21A
C21B
C22A
C22B
VOUT2
C31A
C31B
VOUT3
LC79451KB
ZVDD
ZVSS
TEST
RESET
VSS
ID1
ID2
VDD
IFSEL
VSS
SPIDRW
CS
SDA
SCL
TESTLOUT
TESTAOUT
BUSY
DAOUT
VDD2
C01A
C01B
VOUT0
C11A
C11B
VOUT1
C21A
C21B
C22A
C22B
VOUT2
C31A
C31B
VOUT3
Fig.18. SPI interface connection example (Joint charge-pump voltage)
Notice : The use example using the plural IC is out of a guarantee.
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