ADP8860 Analog Devices, ADP8860 Datasheet - Page 16

• 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

ADP8860
BACKLIGHT OPERATING LEVELS
Backlight brightness control operates in three distinct levels:
daylight (L1), office (L2), and dark (L3). The BLV bits in
Register 0x04 control the specific level in which the backlight
operates. These bits can be changed manually, or if in automatic
mode (CMP_AUTOEN is set high in Register 0x01), by the
ambient light sensor (see the Ambient Light Sensing section).
30mA
0
DAYLIGHT_MAX
DAYLIGHT (L1)
DAYLIGHT_DIM
Figure 29. Backlight Operating Levels
BACKLIGHT OPERATING LEVELS
OFFICE_MAX
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OFFICE (L2)
OFFICE_DIM
By default, the backlight operates at daylight level (BLV = 00),
where the maximum brightness is set using Register 0x09
(BLMX1). A daylight dim setting can also be set using
Register 0x0A (BLDM1). When operating at office level (BLV =
01), the backlight maximum and dim brightness settings are set
by Register 0x0B (BLMX2) and Register 0x0C (BLDM2). When
operating at the dark level (BLV = 10), the backlight maximum
and dim brightness settings are set by Register 0x0D (BLMX3)
and Register 0x0E (BLDM3).
DARK_MAX
DARK (L3)
DARK_DIM