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ADP8861ACPZ-RL
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Product Detailed Parameters
- Description：IC LED DRV RGLTR I2C 20LFCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Switched Capacitor (Charge Pump)
- Internal Switch(s)：Yes
- Number of Outputs：7
- Voltage - Supply (Min)：2.5V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：4.3V ~ 5.5V
- Current - Output / Channel：30mA, 60mA
- Frequency：1MHz
- Dimming：I2C
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN Exposed Pad, CSP
- Supplier Device Package：20-LFCSP (4x4)
- Grade：-
- Qualification：-
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Overview
The ADP8861ACPZ-RL is a charge pump-based LED backlight controller manufactured by Analog Devices Inc. It features seven independent output channels, each capable of delivering up to 60 mA. The device operates within an input voltage range of 2.5 V to 5.5 V and supports I2C control for configuration. It utilizes a 1 MHz switching frequency and is housed in a 20-pin LFCSP package. The component functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates seven individually programmable LED driver channels with configurable fade-on/off times and blink functions.
- Supports I2C interface for digital control of brightness intensity across 128 steps.
- Utilizes a charge pump topology to drive high-voltage LED strings from low-voltage sources.
Applications
- Mobile phone display backlighting
- Portable electronic device illumination
- LCD panel backlight control systems
Procurement Notes
Verify the specific suffix 'R7' against the requested part number, as datasheets may list 'ADP8861ACPZ-R7'. Confirm availability status through official Analog Devices channels or authorized distributors, as supply constraints may apply. Ensure the LFCSP-20 package matches the target PCB footprint requirements before finalizing procurement decisions.
Selection Notes
Select this component when seven independent LED channels are required for uniform backlight distribution. The I2C interface allows for system-level brightness adjustment and power management integration. Consider the 60 mA per channel limit and the charge pump efficiency relative to the specific LED forward voltage requirements of the application design.
Part Context
This part belongs to the ADP886x series of LED lighting drivers designed for portable applications. It shares architectural similarities with the ADP8860 but lacks ambient light sensor support found in other variants. The series targets mobile devices requiring efficient, software-configurable backlight control with minimal external component count.
Replacement Considerations
The ADP8860ACPZ-R7 serves as a functional substitute with added ambient light sensing capabilities. The ADP8863ACPZ-R7 offers similar core functionality with different feature sets. Verify pin compatibility and software register mapping when transitioning between these variants within the same product family.
