HTR3310SQER

HTR3310 is a 10 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 10 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 37mA, and IMAX can be changed in GloCTL register. HTR3310 supports breathing function to implement different lighting effects in a much easier way with two modes: blinking mode and fading mode. HTR3310 is available in QFN3×3-20L package.

HTR3310是一款10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GPIO模式。此外，任何GPIO都可以单独配置为输入或输出。 通电后，10个IO端口配置默认为GPIO输出，默认状态根据AD0和AD1决定。所有配置为输入的IO端口都会持续监控状态变化，并具有8μs的防抖动时间，IO口的变化由INTN输出指示。当GPIO状态通过I2C接口被读取时，INTN输出被清除。 当IO端口配置为LED模式时，可以通过I2C接口将LED驱动器的电流设置在0~IMAX之间，并可以以该值除以256步进行线性调光。默认最大电流（IMAX）为37mA，可在全局在控制寄存器中更改IMAX。 HTR3310支持breathing功能，使其实现灯效变得更为容易，其有两种模式:blinking模式和fading模式。 HTR3310提供QFN3×3-20L封装

• Power supply range: 2.5V~5.5V
• 10 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
• 供电范围：2.5V~5.5V
• 10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

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