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.
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.
Read more...Advanced 3-phase controllers Future Electronics
Power Electronics / Power Management
The STSPIN32G0 by STMicroelectronics is a family of highly integrated system-in-package providing solution suitable for driving three-phase brushless motors.
Read more...Converting high voltages without a transformer Altron Arrow
Editor's Choice Power Electronics / Power Management
With appropriate power converter ICs, such as the LTC7897 from Analog Devices, many applications can be suitably powered without having to use complex and cost-intensive transformers.
Read more...Reliable power for demanding applications Conical Technologies
Power Electronics / Power Management
The Mibbo Power MTR480 three-phase DIN-rail power supply is engineered to meet stringent industrial automation requirements, offering dependable performance in environments where downtime is not an option.
Read more...NeoMesh on LoRa CST Electronics
Telecoms, Datacoms, Wireless, IoT
Thomas Steen Halkier, CEO of NeoCortec, recently gave a keynote speech where he spoke about “NeoMesh on LoRa: Bringing true mesh networking to the LoRa PHY”.
Read more...Powering performance and precision Future Electronics
Power Electronics / Power Management
onsemi’s innovative T10 series MOSFETs, available in 40 V and 80 V versions, are designed for high-efficiency, fast-switching, and power-dense applications.
Read more...Programmable flyback switcher ICs Future Electronics
Power Electronics / Power Management
Power Integrations has announced the release of the InnoSwitch5-Pro family of programmable flyback switcher ICs, which offer more than 95% efficiency in streamlined AC-DC converter designs.
Read more...Multilayer chip beads with 8 A rating RS South Africa
Power Electronics / Power Management
TDK Corporation has expanded its MPZ1608-PH series of large-current multilayer chip beads for automotive and commercial power supply lines.
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