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ADP1650ACPZ-R7 데이터시트(PDF) 19 Page - Analog Devices

부품명 ADP1650ACPZ-R7
상세설명  1.5 A LED Flash Driver with I2C-Compatible Interface
PDF  32 Pages
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ADP1650ACPZ-R7 데이터시트(HTML) 19 Page - Analog Devices

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ADP1650
Rev. C | Page 19 of 32
I2C INTERFACE
The ADP1650 includes an I2C-compatible serial interface for
control of the LED current, as well as for readback of system
status registers. The I2C chip address is 0x30 (0x60 in write
mode and 0x61 in read mode). Additional I2C addresses are
available on request.
Figure 42 illustrates the I2C write sequence to a single register.
The subaddress content selects which of the nine ADP1650
registers is written to. The ADP1650 sends an acknowledgment
to the master after the 8-bit data byte has been written. Figure 43
shows the I2C read sequence of a single register.
The register definitions are shown in the I2C Register Map
section.
SUBADDRESS
CHIP ADDRESS
0 1
100
00
0
00
0 = WRITE
0
ADP1650 RECEIVES
DATA
S
T
S
P
MASTER
STOP
Figure 42. I2C Single Register Write Sequence
CHIP ADDRESS
01 100 0 0
0
0
1
0
MASTER
STOP
CHIP ADDRESS
S
T
S
T
0 1 10 00 0
0
1 0
0 = WRITE
1 = READ
S
P
ADP1650 SENDS
DATA
SUBADDRESS
Figure 43. I2C Single Register Read Sequence



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