ADP8861 Analog Devices, ADP8861 Datasheet - Page 32

• Manufacturer Part Number: ADP8861
• Description: Charge Pump, 7-Channel Smart LED Driver with I2C Interface
• Manufacturer: Analog Devices

Specifications of ADP8861

• 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: PWM
• Peak Efficiency (%): 89%
• Switching Frequency: 1.32MHz
• Over Volt Protection (v): 5.8V

ADP8861
Bit Name
SC4_EN
SC3_EN
SC2_EN
SC1_EN
Independent Sink Current Time (ISCT1)—Register 0x11
Table 35. ISCT1 Bit Map
Bit 7
Table 36. Bit Descriptions for the ISCT1 Register
Bit Name
SCON
SC7_OFF
SC6_OFF
SC5_OFF
1
Each current sink remains on continuously when its enable is set to 1 and its off time is set to 00 (disabled).
SCON
Bit 6
Bit No.
[7:6]
[5:4]
[3:2]
[1:0]
Bit No.
3
2
1
0
Bit 5
Description
SC on time. If the SCx_OFF time is not disabled and the independent current sink is enabled (Register
0x10), the LED(s) remains on for the on time selected (per the following list) and then turns off.
00 = 0.2 sec
01 = 0.6 sec
10 = 0.8 sec
11 = 1.2 sec
SC7 off time. When the SC off time is disabled, the ISC remains on while enabled. When the SC off time is
set to any other value, then 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
SC6 off time. When the SC off time is disabled, the ISC remains on while enabled. When the SC off time is
set to any other value, then 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
SC5 off time. When the SC off time is disabled, the ISC remains on while enabled. When the SC off time is
set to any other value, then 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
1
SC7_OFF
Description
This enable acts upon LED4
1 = SC4 is turned on
0 = SC4 is turned off
This enable acts upon LED3
1 = SC3 is turned on
0 = SC3 is turned off
This enable acts upon LED2
1 = SC2 is turned on
0 = SC2 is turned off
This enable acts upon LED1
1 = SC1 is turned on
0 = SC1 is turned off
Bit 4
Rev. A | Page 32 of 40
Bit 3
SC6_OFF
Bit 2
Bit 1
SC5_OFF
Bit 0