ADP8866 Analog Devices, ADP8866 Datasheet - Page 35

• 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

Independent Sink Current Time (ISCT1)—Register 0x1C
Table 44. ISCT1 Bit Map
Bit 7
Table 45.
Bit Name
SCON
N/A
SC5OFF
1
2
Independent Sink Current Time (ISCT2)—Register 0x1D
Table 46. ISCT2 Bit Map
Bit 7
If SCON is set to 0 sec, then after the ISC completes a ramp up, it immediately starts to ramp back down again (if SCxOFF is not disabled). SCON should not be set to 0 if
the fade-in time is also 0 seconds.
An independent sink remains on continuously when it is enabled and SCxOFF is disabled.
SC4OFF
Bit No.
[7:4]
[3:2]
[1:0]
Bit 6
Bit 6
Description
SC on time. If the SCxOFF time is not disabled, then when the independent current sink is enabled (Register 0x1A
and Register 0x1B), it remains on for the on time selected (per the following list) and then turns off.
0000 = 0.00 sec
0001 = 0.05 sec.
0010 = 0.10 sec.
0011 = 0.15 sec.
0100 = 0.20 sec.
0101 = 0.25 sec.
0110 = 0.30 sec.
0111 = 0.35 sec.
1000 = 0.40 sec.
1001 = 0.45 sec.
1010 = 0.50 sec.
1011 = 0.55 sec.
1100 = 0.60 sec.
1101 = 0.65 sec.
1110 = 0.70 sec.
1111 = 0.75 sec.
Reserved.
SC5 off time. When the SC off time is disabled, the SC remains on while enabled. When the SC off time is set to any
other value, the ISC turns off for the off time (per the following listed times) and then turns on according to the
SCON setting.
00 = off time disabled
01 = 0.6 sec.
10 = 1.2 sec.
11 = 1.8 sec.
SCON
Bit 5
Bit 5
1
.
2
.
SC3OFF
Bit 4
Bit 4
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Bit 3
Bit 3
Reserved
SC2OFF
Bit 2
Bit 2
Bit 1
Bit 1
SC5OFF
SC1OFF
Bit 0
Bit 0
ADP8866