HTR3236 Datasheet | HEROIC

FEATURES - Input voltage range VCC: 2.5V to 5.5V - I2C interface, automatic address increment function - Four selectable I2C addresses - Internal soft reset register - Modulate LED brightness with 256 steps PWM - Each channel can be controlled independently - Each channel can be scaled independently by 1, 1/2, 1/3 and 1/4 - PWM frequency selectable - 3k Hz (default) - 22k Hz - Pb-free Packages, QFN44L-5×5 - APPLICATIONS - Smart Speakers - Wireless Speakers - Mobile phones and other hand-held devices for LED display - LED in home appliances - 输入电压范围VCC：2.5V-5.5V - I2C接口，支持连续写数据 - 4个I2C地址可选 - 内置软件复位寄存器 - 每路LED支持256阶 PWM亮度调节 - 36路 LED 独立控制 - 36路 LED 最大电流独立控制，4档可选 - 2档调制频率可选，3k Hz(默认)和22k Hz - QFN44L-5×5，无铅封装 - 智能音响 - 无线音响 - 带LED显示的手机和掌上设备 - 家电类LED显示 - DESCRIPTION HTR3236 is prised of 36 constant current channels each with independent PWM control, designed for driving LEDs, PWM frequency can be 3k Hz or 22k Hz. The output current of each channel can be set at up to 38m A (Max.) by an external resistor and independently scaled by a factor of 1, 1/2, 1/3 and 1/4. The average LED current of each channel can be changed in 256 steps by changing the PWM duty cycle through an I2C interface. The chip can be turned off by pulling the SDB pin low or by using the software shutdown feature to reduce power consumption. HTR3236 is available in QFN-44L (5mm×5mm) packages. It operates from 2.5V to 5.5V over the temperature range of -40°C to +85°C. HTR3236是一款36路LED PWM驱动器，PWM 频率可固定为3k Hz或22k Hz。每一路最大输出 电流可通过外置电阻REXT调节，最大38m A，并 可独立控制4档可选。每一路可通过I2C单独控 制256级细腻亮度调节。 主控器件通过I2C接口对HTR3236进行编程控 制，通过将SDB脚拉低或软件设置可关断芯片， 进入低功耗模式。 HTR3236使用QFN-44L(5mm×5mm)封装。工 作电压在2.5V到5.5V，可在-40°C to +85°C工 作。 - ORDERING INFORMATION Part...