ADP8860 Analog Devices, ADP8860 Datasheet - Page 37

• Manufacturer Part Number: ADP8860
• Description: Charge Pump, 7-Channel Smart LED Driver with I2C Interface
• Manufacturer: Analog Devices

Specifications of ADP8860

• Vin Range: 2.4V to 5.5V
• Vout (v): 4.3 to 5.5
• Synchronous: No
• Package: 20-Lead WLCSP
• Led Configuration: Parallel
• Topology: Capacitive
• I2c Support: Yes
• Max Iout (ma): 60mA
• Brightness Control: I2C
• Peak Efficiency (%): 89%
• Switching Frequency: 1MHz

Backlight Level 3 (Dark) Dim Current Register (BLDM3)—Register 0x0E
Table 37. BLDM3 Bit Map
Bit 7
Reserved
Table 38. Bit Descriptions for the BLDM3 Register
Bit Name
N/A
BL3_DC
INDEPENDENT SINK REGISTER DESCRIPTIONS
Independent Sink Current Fade Control Register (ISCFR)—Register 0x0F
Table 39. ISCFR Bit Map
Bit 7
Table 40. Bit Descriptions for the ISCFR
Bit Name
N/A
SC_LAW
Independent Sink Current Control (ISCC)—Register 0x10
Table 41. ISCC Bit Map
Bit 7
Reserved
Table 42. Bit Descriptions for the ISCC Register
Bit Name
N/A
SC7_EN
SC6_EN
SC5_EN
Bit No.
7
6:0
Bit No.
7:2
1:0
Bit 6
Bit 6
SC7_EN
Bit No.
7
6
5
4
Description
Reserved.
Backlight Level 3 (dark) dim current. See Table 28 for a complete list of values. The backlight is set to the
dim current value after a dim timeout or if the DIM_EN flag is set by the user.
DAC
0000000
0000001
0000010
0000011
…
1111111
Description
Reserved.
Independent sink current fade transfer law.
00 = linear law DAC, linear time steps.
01 = square law DAC, linear time steps.
10 = square law DAC, nonlinear time steps (Cubic 10).
11 = square law DAC, nonlinear time steps (Cubic 11).
Bit 5
Bit 5
SC6_EN
Bit 6
Reserved
Bit 5
Bit 4
Bit 4
SC5_EN
Description
Reserved.
This enable acts upon the LED7.
1 = SC7 is turned on.
0 = SC7 is turned off.
This enable acts upon the LED6.
1 = SC6 is turned on.
0 = SC6 is turned off.
This enable acts upon the LED5.
1 = SC5 is turned on.
0 = SC5 is turned off.
Linear Law (mA)
0
0.236
0.472
0.709
…
30
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Bit 4
Bit 3
Bit 3
SC4_EN
Square Law (mA)
0
0.002
0.007
0.017
…
30
Bit 3
BL3_DC
Bit 2
Bit 2
SC3_EN
Bit 2
Bit 1
Bit 1
SC2_EN
Bit 1
SC_LAW
Bit 0
ADP8860
Bit 0
SC1_EN
Bit 0