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Kinetic Technologies Enhances Display Power Solutions with KTZ8869

Kinetic Technologies, a leader in power management and interface solutions, has launched its latest innovation, the KTZ8869. This advanced tablet panel power integrated circuit (IC) is designed to meet the demands of the next generation of high-resolution and high-refresh rate displays, a feature set that is becoming increasingly crucial in today’s market of high-definition tablets and screens.

What Is KTZ8869?

The KTZ8869 is a highly efficient LED backlight driver, featuring eight-channel current sinks and two robust 40V boost converters. One of its standout features is its capability to deliver up to 300mA to drive LCD displays that require substantial bias current. This makes it well-suited for contemporary tablets that boast both high-resolution and high-refresh capabilities.

One of the notable advancements with the KTZ8869 is its dual dimming control option, which accommodates both I2C and PWM inputs. This flexibility enables the use of linear or Gamma 2.2 profiles for dimming. The design also boasts a high switching frequency, which allows for the use of smaller inductors and capacitors—leading to a more compact and simplified design with fewer necessary external components. The device operates within an input range of 2.7V to 5.5V, making it adaptable to single-cell lithium-ion batteries or a standard 5V power supply.

Moreover, the KTZ8869 integrates a comprehensive suite of protection features, including inductor current limit protection, output short circuit protection, output over-voltage protection, and LED fault protection, among others. It also incorporates an optional blocking MOSFET to isolate the boost converter output during shutdown, increasing system reliability.

Enhancements in User Experience

With a focus on improving user experience, the KTZ8869 excels in dimming capabilities that align with the human eye's perception. The Gamma 2.2 profile offers better performance at lower brightness levels, which is particularly beneficial for night-mode applications where dimming is essential. Furthermore, the device is optimized to deliver heightened LED brightness, rated up to 32.4mA, catering to displays required to function under High Brightness Mode (HBM) for more demanding visual environments.

As noted by Lu Chen, Senior Director of IC Analog Design at Kinetic Technologies, this driver empowers engineers seeking reduced footprints for their next tablet or mid-sized display. By integrating functionalities that previously required three separate ICs into a single compact chip, the KTZ8869 exemplifies a leap forward in display technology.

Technical Specifications

Here are some key features and specifications of the KTZ8869:

• - Backlight LED Driver: Wide input range of 2.7V to 5.5V; high efficiency step-up LED driver supporting 8-channel current sinks and boosting voltages up to 40V.
• - Dimming Control: Supports I2C/PWM dual dimming schemes for both high resolution 12-bit linear and Gamma 2.2 profiles.
• - High Efficiency: Achieves ±1.2% current matching and ±2.2% accuracy at 20mA, with up to 32.4mA per channel in backlight mode.
• - Programmable Features: Adjustable ramp times for current sink activation and response to PWM signals, as well as programmable over-voltage protection and current limits.
• - Compact Packaging: Available in a RoHS-compliant WQFN55-32L package, measuring 5mm x 5mm, ensuring that it meets environmental regulations while occupying minimal space.
• - Thermal Protection: Equipped with thermal shutdown protection and operates within a broad temperature range of -40°C to +85°C.

By releasing the KTZ8869, Kinetic Technologies not only solidifies its position at the forefront of display power solutions but also caters to the evolving needs of consumers and manufacturers in the tech industry. With shipments of the KTZ8869 already underway, the product is now available for purchase, revolutionizing the way high-resolution displays are powered.

For more information on the KTZ8869 and Kinetic Technologies' full product line, visit Kinetic Technologies.