The MAX16804 is a 350 mA, high-brightness LED driver from Maxim that features a high-voltage (40 V) PWM pin that allows a wide dimming range. A wide operating input-voltage range of 5,5-40 V helps protect against large transients such as load-dump and cold cranking. Among others, these features make the MAX16804 well-suited for automotive, LED industrial, and architectural lighting applications. The need for only two small ceramic capacitors and a small sense resistor results in minimal board size and driver cost.
An on-board 200 Hz ramp generator allows analog or PWM control for PWM or theatre-dimming effect, thus eliminating the need for the microcontroller's PWM signal. The high-voltage (40 V-rated) DIM pin can also sync with an external PWM signal up to 2 kHz. Fast turn-on/off times ensure a wide dimming range, while the wave-shaping circuitry minimises EMI.
A fixed, 5 V-output regulator delivers up to 2 mA of load current for low-power applications throughout the 5,5-40 V input-voltage range. For greater design flexibility, the regulator can also power a microcontroller or other external components. The regulator combines a low-voltage (204 mV) current-sense reference with differential LED current sensing to provide load accuracy of ±3,5%. This current accuracy allows consistent brightness for all light assemblies. The device's low-dropout pass element (0,5 V, typ) and current-sense reference minimises power dissipation in the system. It can drive multiple LEDs in series up to 39 V.
The MAX16804 features thermal and short-circuit protection and is rated for use over -40 to 125°C.
ABB’s Mission to Zero drives South Africa’s energy transition ABB Electrification Products
Power Electronics / Power Management
ABB Electrification is charting a bold path towards a net-zero future with its Mission to Zero programme, a blueprint that combines energy efficiency, electrification, and digital innovation to accelerate the transition to clean energy.
Read more...Energy harvesting using a battery-less IoT system NuVision Electronics
Editor's Choice Power Electronics / Power Management
Energy Harvesting plays an essential role in the foundation of ambient IoT, a new generation of ultra-low power connected devices that operate by drawing energy from their environment instead of relying on traditional batteries.
Read more...Driving power, defining performance Future Electronics
Power Electronics / Power Management
Vishay’s portfolio of inductors, current sense resistors, and MOSFETs provides a comprehensive solution for intelligent power management.
Read more...Battery simulator module simplifies BMS testing Test Dynamics
Power Electronics / Power Management
The PXI/PXIe solution from Pickering Interfaces offers a scalable, modular design for faster development cycles, lower total cost of ownership, and improved safety.
Read more...DC PSU: The cornerstone for efficient solar-storage systems Vepac Electronics
Power Electronics / Power Management
PV energy storage systems are evolving and DC power supplies, with their technical characteristics that are naturally compatible with new energy, have become a key carrier for improving system energy efficiency.
Read more...Converter power modules for 48 V networks Altron Arrow
Power Electronics / Power Management
The economic and quality-of-life benefits of electrification is driving the adoption of HV to 48 V DC-DC conversion across many markets with 48 V power modules becoming more common.
Read more...The importance of power integrity Spectrum Concepts
Power Electronics / Power Management
[Sponsored] Behind every high-speed system lies the need for power integrity. Without it, even the cleanest signal paths become compromised.
Read more...Precise multi-vital sign monitoring Future Electronics
Power Electronics / Power Management
The AS7058 by ams OSRAM is an integrated multi-vital sign monitoring device, which provides a complete photoplethysmogram, electrocardiogram, body impedance sensor, and electrodermal activity sensor.
Read more...Automotive battery diagnostics tester Comtest
Power Electronics / Power Management
Midtronics’ MVT handheld battery tester is a revolutionary tool, powered by MDX-AI, which is set to redefine the standards of battery diagnostics and testing in the automotive industry.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version