Zhongwei Aixin: Launches the AiP33629L—An LED driver chip featuring “ultra-low power consumption + compact package”
AiP33629L is a common‑cathode LED driver chip featuring low‑power operation, with current consumption below 0.1 μA in low‑power mode, and supports driving up to a 9×16 dot matrix, making it ideal for full‑color display applications with stringent power‑consumption requirements.
Key Features
● Product family‑wide design, with commands and parameters fully compatible with the AiP33629.
● Ultra-low current consumption of <0.1 μA (typical value)
● High-speed I2C interface, supporting a maximum communication frequency of 1 MHz.
● Supports the QFN32 (4×4×0.75–0.4) small package
● Supports 256-level single-point dimming
● Supports 64-level global constant-current adjustment
● Supports built-in resistor constant-current mode
● Supports external resistor constant-current mode
● Supports SOP32/ESOP32/LQFP32/QFN32 (5×5×0.75–0.5)/QFN32 (4×4×0.75–0.4) packages
Functional block diagram
Pinout Diagram
Typical Application Diagram
Circuit Periphery:
Periphery of the light array:
Product Advantages
● Ultra‑low power consumption: The AiP33629L has undergone comprehensive functional and structural optimization to meet the stringent standby current requirements of demanding applications, achieving an ultra‑low quiescent current as low as 0.1 μA under typical conditions. In practical use, a switching‑mode power‑supply MOSFET is no longer needed for low‑power control; ultra‑low‑power operation can be achieved simply by issuing control commands from the main controller.
● Miniaturization: The AiP33629L now features a compact QFN32 (4×4×0.75–0.4) package, which reduces PCB footprint by 36% while maintaining the same core specifications and performance, delivering superior cost‑effectiveness.
● Compatibility: Thanks to its family‑compatible design, the AiP33629L is fully pin‑to‑pin, parameter‑wise, and instruction‑set compatible with the AiP33629. As a result, the AiP33629L can directly replace the AiP33629 without requiring additional software or hardware development, significantly reducing development costs.
Application areas
In fields such as home appliances, portable lithium‑battery devices, and instrumentation, it can be applied to the following scenarios:
Traditional LED panel driver for devices
Device colorful ambient lighting effect driver
LED panel driver for lithium‑battery‑powered, long‑endurance devices
Variable-light-source driver for low-power lithium‑battery‑powered LED lighting
(Source: Zhongwei Aixin official website)
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