ADP8863 Analog Devices, ADP8863 Datasheet - Page 24

• Manufacturer Part Number: ADP8863
• Description: Charge Pump, 7-Channel Fun Lighting LED Driver
• Manufacturer: Analog Devices

Specifications of ADP8863

• Vin Range: 2.5 to 5.5V
• Vout (v): 4.3 to 5.5
• Synchronous: No
• Package: 20-Lead LFCSP,20-Lead WLCSP
• Led Configuration: Parallel
• Topology: Capacitive
• I2c Support: Yes
• Max Iout (ma): 60mA
• Brightness Control: I2C
• Peak Efficiency (%): 89%
• Switching Frequency: 1.32MHz
• Over Volt Protection (v): 5V

ADP8863
I
The ADP8863 provides full software programmability to facili-
tate its adoption in various product architectures. The I
is 0101011x (x = 0 during write, x = 1 during read). Therefore,
the write address is 0x56 and the read address is 0x57.
Note the following general behavior of registers:
•
•
•
2
C PROGRAMMING AND DIGITAL CONTROL
All registers are set to their default values during reset or
after a UVLO event.
All registers are read/write unless otherwise specified.
Unused bits are read as zero.
ST
SLAVE TO MASTER
MASTER TO SLAVE
B7
0
ST
1
SLAVE TO MASTER
MASTER TO SLAVE
OPERATION
FOR WRITE
DEVICE ID
0
B7
0
1
1
0
OPERATION
FOR WRITE
0
DEVICE ID
1
1
1
R/W
B0
0
ACK
1
B7
SELECT REGISTER TO WRITE
1
REGISTER ADDRESS
R/W
B0
ACK
B7
2
C address
SELECT REGISTER TO WRITE
REGISTER ADDRESS
Figure 49. I
Figure 50. I
B0
Rev. A | Page 24 of 52
ACK
2
2
RS 0
C Write Sequence
C Read Sequence
B7
1
Table 8 to Table 84 provide register and bit descriptions. The
reset value for all bits in the bit map tables is all 0s, except in
Table 10 (see Table 10 for its unique reset value). Wherever the
acronym N/A appears in the tables, it means not applicable.
OPERATION
0
FOR READ
DEVICE ID
B0
1
ACK
0
1
B7
1
8-BIT VALUE TO WRITE IN THE
R/W
B0
ADDRESSED REGISTER
REGISTER VALUE
ACK
8-BIT VALUE TO WRITE IN THE
B7
ADDRESSED REGISTER
REGISTER VALUE
B0
ACK
B0
ST
ACK
ST