ADP8866 Analog Devices, ADP8866 Datasheet - Page 39
ADP8866
Manufacturer Part Number
ADP8866
Description
Charge Pump Driven 9-Channel LED Driver with Automated LED Lighting Effects
Manufacturer
Analog Devices
Datasheet
1.ADP8866.pdf
(52 pages)
Specifications of ADP8866
Vin Range
2.5 to 5.5V
Vout (v)
4.3 to 5.5
Synchronous
No
Package
20-Lead LFCSP
Led Configuration
Parallel
Topology
Capacitive
I2c Support
Yes
Max Iout (ma)
25mA
Brightness Control
I2C
Peak Efficiency (%)
92%
Switching Frequency
1MHz
Bit Name
SCFI
Sink Current Register LED1(ISC1)—Register 0x23
Table 58. ISC1 Bit Map
Bit 7
Reserved
Table 59.
Bit Name
N/A
SCD1
Sink Current Register LED2 (ISC2)—Register 0x24
Table 60. ISC2 Bit Map
Bit 7
Reserved
Table 61.
Bit Name
N/A
SCD2
Bit No.
7
[6:0]
Bit No.
[3:0]
Bit No.
7
[6:0]
Description
Sink current fade-in time. Note that the fade time given is from zero to full scale (the actual full-scale value is affected
by the LEVEL_SET bits). Binary code fade-out times are as follows:
0000 = disabled.
0001 = 0.05 sec.
0010 = 0.10 sec.
0011 = 0.15 sec.
0100 = 0.20 sec.
…
1111 = 1.75 sec.
Description
Reserved.
Sink current. All values scale with the setting of LEVEL_SET. See Table 39 for a complete list of values.
DAC
Code
0x00
0x01
0x02
0x03
…
0x7F
Description
Reserved.
Sink current. All values scale with the setting of LEVEL_SET. See Table 39 for a complete list of values.
DAC Code
0x00
0x01
0x02
0x03
…
0x7F
Bit 6
Bit 6
Current (mA)
(Full Scale = 25 mA)
LEVEL_SET =
000010
0.0
0.0016
0.0062
0.014
…
25.0
Current (mA)
(Full Scale =
25 mA)
LEVEL_SET =
000010
0.0
0.0016
0.0062
0.014
…
25.0
Bit 5
Bit 5
Current (mA)
(Full Scale =
12.5 mA)
LEVEL_SET =
001100
0.0
0.0008
0.0031
0.0070
…
12.5
Current (mA)
(Full Scale =
12.5 mA)
LEVEL_SET=001100
0.0
0.0008
0.0031
0.0070
…
12.5
Bit 4
Bit 4
Rev. 0 | Page 39 of 52
Current (mA)
(Full Scale =
8.25 mA)
LEVEL_SET =
010110
0.0
0.0005
0.0021
0.0047
…
8.33
Bit 3
Bit 3
Current (mA)
(Full Scale =
8.25 mA)
LEVEL_SET=010110
0.0
0.0005
0.0021
0.0047
…
8.33
SCD1
SCD2
Bit 2
Bit 2
Current (mA)
(Full Scale =
6.25 mA)
LEVEL_SET =
100000
0.0
0.0004
0.0016
0.0035
…
6.25
Current (mA)
(Full Scale =
6.25 mA)
LEVEL_SET=100000
0.0
0.0004
0.0016
0.0035
…
6.25
Bit 1
Bit 1
Current (mA)
(Full Scale =
5.0 mA)
LEVEL_SET =
101010
0.0
0.0003
0.0012
0.0028
…
5.0
Current (mA)
(Full Scale =
5.0 mA)
LEVEL_SET =
101010
0.0
0.0003
0.0012
0.0028
…
5.0
ADP8866
Bit 0
Bit 0