HTR3306 Datasheet | HEROIC

FEATURES - Power supply range : 2.5V~5.5V - 6 multifunctional IOs, capable of LED driving (current-source dimming) or GPIO - 256 steps linear dimming in LED mode - Any IO can be configured as an input or an output independently - Interrupt function, 8μs deglitch, active low - Standard I2C interface, 4 programmable device addresses - 1.8V/3.3V logic input (SDA, SCL, RSTN, IO) - Shutdown function, active low - Support 2 intelligent breathing mode: blinking and fading, breathing time is adjustable - Pb-free Packages, QFN3×3-20L - APPLICATIONS - Cell Phone - Speakers - Other Consumer electronics - 供电范围：2.5V~5.5V - 6个多功能IO，支持LED驱动或GPIO（电流源调 光） - LED模式下具有256阶线性调光 - 任意IO可配置为独立的输入或输出 - 中断功能，8μs防抖，低电平有效 - 标准I2C接口，4个I2C器件地址可选 - 支持1.8V/3.3V逻辑电平(SDA, SCL, RSTN, IO) - 具有关断功能，低电平有效 - 支持两种智能呼吸模式：Blinking模式和Fading 模式，呼吸时间可调，智能呼吸模式节省主控芯片 功耗 - QFN3×3-20L，无铅封装 - 手机 - 音箱 - 其他消费类电子产品 - DESCRIPTION HTR3306 is a 6 multifunctional LED driver and GPIO controller with 2.5V~5.5V power supply. Any of the 10 IOs can be configured as LED mode or GPIO mode. Meanwhile, any GPIO can be configured as an input or an output independently. After power on, all the 6 IOs are configured as GPIO output as default, and their default states are decided by AD0 and AD1. When the IOs are configured as inputs, they are continuously monitored for state changes with 8μs deglitch. State changes are indicated at the INTN output. Once the GPIO state are read through the I2C interface, the INTN output is cleared. When the IOs are configured as LED mode, the LED driver’s current, divided by 256 steps linear dimming, can be set between 0~IMAX by I2C interface. The default maximum current (IMAX) is 37m A, and IMAX can be changed in Glo CTL register. HTR3306 supports breathing function to implement different lighting effects in a much easier way with two modes: blinking mode and fading mode. HTR3306 is available in QFN3×3-20L package. HTR3306 是 一 款 6 路 多 功 能 LED 驱 动 器 和 GPIO控制器, 2.5V~5.5V电源供电。10个IO端 口 中 的 任 何 一 个 都 可 以 配 置 为 LED 模 式 或...