ADP8866 Analog Devices, ADP8866 Datasheet - Page 39

• Manufacturer Part Number: ADP8866
• Description: Charge Pump Driven 9-Channel LED Driver with Automated LED Lighting Effects
• Manufacturer: Analog Devices

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