Power Electronics / Power Management


1,1 A charge pumps for LEDs

26 January 2005 Power Electronics / Power Management

The MAX1577Z/MAX1577Y ICs are high-efficiency 1x/2x charge pumps from Maxim, which can drive white LEDs with regulated current up to 1,1 A (800 mA guaranteed). By using a proprietary adaptive-mode switching technique, they provide up to 92% efficiency. The very-low, open-loop output resistance allows high white LED flash brightness, even from a low-battery input voltage. They require only three tiny ceramic capacitors - eliminating the need for a step-up DC/DC converter and low-profile inductor. The devices use an external resistor to set the full-scale LED current. The input voltage range is 2,7 V to 5,5 V.

CST Electronics, +27 (0)11 452 0706

Electrocomp (Value Added Distributor), +27 (0)11 458 9000



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Next-gen power meter
Electrocomp Express Power Electronics / Power Management
The VT-PWR-LV is a next-gen Vista Touch power meter from Trumeter for single, split, and three-phase systems.

Read more...
New 3dB hybrid couplers
Electrocomp Telecoms, Datacoms, Wireless, IoT
Designed to facilitate the continued evolution of high-frequency wireless systems in various market segments, the new DB0402 3dB 90° hybrid couplers provide repeatable high-frequency performance compatible with automated assembly.

Read more...
Advanced PMIC for high-performance AI applications
ASIC Design Services Power Electronics / Power Management
Microchip Technology has announced the MCP16701, a Power Management Integrated Circuit (PMIC) designed to meet the needs of high-performance MPU and FPGA designers.

Read more...
Robust series of vertical-mating battery connectors
Electrocomp Interconnection
KYOCERA AVX has further expanded its industry-leading selection of standard battery connectors with the introduction of the new 9155-900 Series 2,5 mm-pitch vertical-mate battery connectors.

Read more...
New SiC power MOSFET
Future Electronics Power Electronics / Power Management
STMicroelectronics’ SCT012H90G3AG is a robust, automotive-grade SiC MOSFET, engineered for demanding power electronics, featuring a 900?V drain-source voltage and exceptionally low on-resistance of 12?mO at 60?A.

Read more...
Fundamental motor control design challenges and solutions
Power Electronics / Power Management
Mouser Electronics has announced a new eBook in collaboration with Qorvo, featuring industry experts providing key insights into methods, power efficiency and integration solutions available for motor control applications.

Read more...
Power management IC for battery products
Power Electronics / Power Management
The nPM1304 PMIC complements Nordic’s nPM1300 PMIC with a highly integrated, ultra-low power solution and precision fuel gauging for small size battery applications.

Read more...
Powering Innovation eBook: Changing what’s possible
Power Electronics / Power Management
This exclusive read, entitled ‘Changing what’s Possible,’ delves into how power dense Vicor modules enable many world-changing innovations across various sectors.

Read more...
16-channel multicell battery monitor
Altron Arrow Power Electronics / Power Management
The ADBMS6830B is a multicell battery stack monitor that measures up to 16 series-connected battery cells with a lifetime total measurement error of less than 2 mV.

Read more...
Reliable redundancy with the Mibbo M3DN Series
Conical Technologies Power Electronics / Power Management
Designed for use with two parallel-connected power supplies, the M3DN Series allows for true redundancy, making it ideal for mission-critical applications.

Read more...









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.




© Technews Publishing (Pty) Ltd | All Rights Reserved