Power Electronics / Power Management


Linear LED drivers

14 June 2017 Power Electronics / Power Management

Diodes Incorporated introduced the BCR401U, BCR402U and BCR405U linear LED drivers. Appealing to lighting designers, these constant-current regulators enable simple driving of low-current LED strips and panels in the commercial and industrial lighting sectors.

Targeted at 12 V and 24 V linear LED strips, these regulators increase light output efficiency as they only require a 1,4 V supply, allowing more LEDs in the string.

By achieving regulation within ±10% and providing preset options of 10 mA (BCR401U), 20 mA (BCR402U) and 50 mA (BCR405U) that can be adjusted up to 100 mA, these regulators simplify the design, minimise component count, and overall enhance system reliability by integrating the driver. Combined with the improved efficiency and longer life offered by LEDs, many lighting applications including advertising, emergency, refrigeration, decorative, architectural and other general forms are being superseded with this emerging light source.

Delivering a regulated current over a wide 1,4 V to 40 V supply, the BCR40xU will tolerate voltage spikes and LED short failures in strings, whilst preserving LED brightness and longevity. This, along with a negative temperature coefficient that reduces the LED current with rising temperature, helps to increase the LED lifespan by reducing dissipation and additionally enables parallel device operation for increased current in applications requiring more than 100 mA.

The BCR40xU operates as a linear LED driver, minimising the likelihood of EMI, which is particularly important in medical lighting and other sensitive applications, while LED brightness can be PWM controlled with <1% duty cycle at 25 kHz allowing accurate dimming to low light levels. The drivers are offered in the industry-standard SOT-26 (SC74R) package.

For more information contact Andrew Athanasiou, Arrow Altech Distribution, +27 (0)11 923 9600, [email protected], www.arrow.altech.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

STM releases innovative GNSS receiver
Altron Arrow Telecoms, Datacoms, Wireless, IoT
STMicroelectronics recently introduced the Teseo VI family of global navigation satellite system receivers aimed at high-volume precise positioning use cases.

Read more...
Integrated STM32WBA6 wireless microcontrollers
Altron Arrow DSP, Micros & Memory
Cost-efficient and highly integrated embedded controllers for emerging 2,4 GHz wireless applications in smart home, health, factory, and agriculture.

Read more...
High-voltage IGBT
Hi-Q Electronics Power Electronics / Power Management
Diotec Semiconductor has launched the DIW030M060 IGBT, a 600 V, 30 A device with a built-in reverse diode.

Read more...
Ultra-low-power MCU with FPU Arm Cortex-M33
Altron Arrow DSP, Micros & Memory
STMicroelectronics has expanded its STM32 ultra-low-power family with the launch of the STM32U3 for cost-sensitive applications in industrial, medical, and consumer electronics devices.

Read more...
DC converter for Hi-Rel applications
Vepac Electronics Power Electronics / Power Management
The MFK2812S from Crane Aerospace & Electronics is a DC-DC converter with an input voltage range of 16 to 50 V and an output of 12 V at up to 2,08 A.

Read more...
Compact and powerful Bluetooth module
Altron Arrow Telecoms, Datacoms, Wireless, IoT
u-blox has introduced its ANNA-B5, a compact, powerful and secure Bluetooth LE module optimised for IoT applications.

Read more...
Altron Arrow: Empowering innovation with STMicroelectronics AI processors
Altron Arrow Editor's Choice AI & ML
ST’s AI processors are not only smarter and faster, but also incredibly efficient, enabling a new wave of intelligent solutions across multiple industries.

Read more...
Distributed Energy Resource Management Systems
Schneider Electric South Africa Power Electronics / Power Management
In addition to grid stability, DERMS also play a role in energy trading with some countries leveraging DERMS for real-time energy trading.

Read more...
BYD introduces new energy storage solutions
Power Electronics / Power Management
BYD Energy Storage, a business division of BYD, has introduced the new BYD Battery-Box LV5.0+ at the recent Solar & Storage Live Africa in Johannesburg.

Read more...
Micro energy harvesting
Power Electronics / Power Management
Panasonic Industry and Miromico partner to show effective micro energy harvesting for industrial applications.

Read more...