Brighten Your Designs with ET6038: The 36-Channel Constant Current LED Driver
In the fast-growing world of LED display technology, creating vibrant, smooth, and precise lighting displays is more important than ever. If you are looking for a reliable, high-performance constant current LED driver to elevate your next product line, look no further than the ET6038. Designed by ETEK, this powerful chip is the perfect blend of high integration and highly precise dimming capabilities. It is built to meet the market’s strict demands for steady current outputs and flexible lighting control.
Why Choose a 36-Channel Constant Current LED Driver?
When you design complex lighting systems, you need components that offer both power and precision. The ET6038 functions as a highly integrated constant current LED driver that features 36 independent constant current output channels. This means a single chip can manage multiple light sources easily, which saves valuable space on your printed circuit board (PCB) and reduces total production costs.
Here is what makes this constant current LED driver stand out for high-end lighting projects:
• Precision Dimming Control: Every single channel supports 256-step PWM dimming, giving you incredibly smooth brightness transitions.
• Global Brightness Control: On top of individual channel settings, the chip provides a 16-step global current adjustment feature to balance the overall display.
• Excellent Uniformity: With a maximum driving current of up to 42.6mA per channel, it ensures perfectly even brightness and rich color accuracy across the entire display screen.
Whether your team is building smart home speakers, toy displays, or portable smart devices, this constant current LED driver provides the wide dynamic range and delicate brightness levels your customers expect.
Key Technical Specifications
For sourcing managers and hardware engineers, reliability is just as important as performance. The ET6038 constant current LED driver is built with a strong set of electrical features to keep your devices running safely:
• Supply Voltage: 2.7V to 5.5V
• Maximum Current: Up to 42.6mA per channel
• Channel Matching: < ±5% typical value between channels
• Communication: I²C bus interface with 4 selectable addresses
Because it is a true constant current LED driver, the output current value stays steady and is not affected by changes in load voltage. This gives your products a longer lifespan and keeps colors from shifting over time.
Flexible Packaging for Easy Manufacturing
Different products require different space configurations. To fit neatly into your existing manufacturing pipeline, this constant current LED driver is available in two distinct, industry-standard packages:
1. QFN44 Package (ET6038Y)
This compact 44-pin package is ideal for tight spaces where every millimeter counts, such as slim consumer electronics and wearable devices.
2. LQFP48 Package (ET6038Q)
The 48-pin low-profile quad flat package provides slightly more spacing between pins, making it highly suitable for automated assembly lines and systems that require easier thermal management.

Both packaging options feature built-in smart protection systems. The ET6038 includes automatic open-circuit and short-circuit detection, along with a soft shutdown feature that protects your main chip and the LEDs from electrical stress.
Seamless Integration with Smart Systems
Connecting the ET6038 to your main system architecture is simple and straightforward. Utilizing a standard I²C bus interface, it supports both single-address and continuous-address data writing. By easily configuring its internal registers, your programming team can adjust any lighting parameter on the fly.
In a typical application, the main microcontroller connects directly to the SCL, SDA, and SDB pins of the constant current LED driver. An external resistor connected to the REXT pin allows you to tune the baseline output current quickly, giving you complete hardware control over your design parameters.

Secure Your Order with ETEK Today
Finding a component that combines high-density channel outputs, reliable protection, and precise dimming control can be a challenge. The ET6038 constant current LED driver solves this problem by bringing smart engineering and high-quality manufacturing together in one reliable chip.
Are you ready to upgrade your product line and give your customers the ultimate visual experience? Contact the sales and support team at ETEK today to request engineering samples, download full datasheets, or get a custom quote for your bulk procurement needs. Let ETEK help you power your next innovation!
Email: marketing@etekmicro.com
Request samples: https://www.etekmicro.com/sample/