HTR3310SQER

HTR3310 is a 10-channel 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.

Applications

• Mobile phones
• Speakers
• Other consumer electronics

Key features

• 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
• Power supply range: 2.5V~5.5V
• 10 multifunctional IOs, supporting LED driving (current-source dimming) or GPIO
• 256-step linear dimming in LED mode
• Any IO independently configurable as input or output
• Interrupt function, 8μs deglitch, active low
• Standard I2C interface, 4 selectable device addresses
• 1.8V/3.3V logic level support (SDA, SCL, RSTN, IO)
• Shutdown function, active low
• 2 intelligent breathing modes: Blinking and Fading, adjustable breathing time; intelligent breathing mode reduces host MCU power consumption
• QFN3×3-20L, Pb-free package