This document is the user manual for XXPPTT88336644, with a total of 1100 pages. It provides an overview of the XPT8364 chip, including its functional specifications, characteristics, application details, packaging, and typical application circuits. The XPT8364 is a four-channel constant current parallel LED driver with features such as ultra-low voltage drop, high efficiency, PWM dimming, and overheat protection. It is suitable for consumer electronic products such as mobile phones, digital cameras, and personal mobile terminals (PDA).
This manual describes the XPT8364, a four‑channel ultra‑low‑drop constant‑current LED driver. It details the chip’s main features, such as 40 mV drop at 20 mA, PWM dimming up to 50 kHz, over‑heat and ESD protection, and a QFN3×3‑16L package suitable for -40 °C to 85 °C operation.
The document includes pin descriptions, maximum limits, performance specifications, typical application circuits, and timing diagrams to help designers integrate the device into mobile phones, PDAs, and other portable electronics. This manual is written in Chinese.
| LED current per channel | 20 mA |
|---|---|
| Static current (no LED load) | 330 µA |
| Shutdown current | <0.1 µA |
| Operating temperature range | -40 °C to 85 °C |
Each LED channel can drive up to 20 mA.
The driver drops only 40 mV at a 20 mA LED current.
It includes over‑heat protection and ESD protection up to 8 kV (HBM).