.gif)
.gif)
New Products
October 31, 2012
Allegro MicroSystems Adds Quad-Output Regulator for Automotive Infotainment
Allegro MicroSystems, Inc. announces a new, highly-integrated power management IC that is designed to provide the power supply requirements of next generation car audio and infotainment systems. Allegro's A8600 device provides all the control and protection circuitry needed to produce four high current regulators each with 1.5% accuracy.
Recommended: Altera Acquires Enpirion for $140 Million, Forms Power Business Unit
The A8600 includes control circuitry to implement three adjustable, asynchronous buck regulators with integrated MOSFETs. Also, the A8600 provides the control circuitry, gate drivers, and current sensing to implement a synchronous buck regulator with external MOSFETs. Of the three asynchronous regulators, one is an "Always-On" type of buck regulator that operates down to at least 3.6 VIN (VIN falling). In standby mode, the "Always On" regulator draws less than 50 µA from 12 VIN while employing pulse frequency modulation (PFM) to deliver 3.3 V/40 µA via the Always-ON regulator. Features of the A8600 include an EN/SYNC input to either turn the A8600 ON/OFF or increase/decrease the base PWM frequency, four adjustable soft-start times and four external compensation pins. Output voltage monitoring of the three switchers is provided by a single, open-drain, PowerOK (POK) output.
In addition, the A8600 provides two high-voltage, high-side switches with fold back over current protection for passing a voltage while passing a current of up to 450 mA and limiting the current to 100 mA during foldback. The two high-side switches actively block reverse current.
Related: Amorphous and Tape-Wound Cores, SMD Capacitors and Rugged Connectors at PCIM
The A8600 also provides direct battery (BU) and switched accessory battery (ACC) detectors and a mute pulse output with an adjustable delay. Protection features of the A8600 include pulse-by-pulse current limit, hiccup mode short circuit protection, asynchronous diode protection, BOOT voltage protection, under-voltage lockout, over-voltage protection and thermal shutdown.
The A8600KLPTR-T device is available in a 48-pin LQFP with exposed pad (suffix JP) for enhanced thermal performance. It is priced at $7.09 in quantities of 1,000.
Share this story
Send via E-mail
Post to Twitter
On the Web:
White Papers
March 11, 2013
Power Modules for Charger Applications
Sponsored by Vincotech
February 27, 2013
The Adaptive Cell Converter Topology Enables Constant Efficiency Over Universal Input AC Line in Front-End, High-Density Power Factor Correction Applications
Sponsored by Vicor Corp.
February 27, 2013
From 48 V direct to Intel VR12.0: Saving "Big Data" $500,000 per datacenter, per year
Sponsored by Vicor Corp.
More White Papers
- Altera Acquires Enpirion for $140 Million, Forms Power Business Unit
- Ericsson Saves Board Space with Surface-Mount Digital Bus Converter
- SiC Modules, IGBTs and Super-Junction MOSFETs Introduced on Day One of PCIM
- SiC and GaN Again a Major Focus at PCIM Europe
- PowerbyProxi Joins Wireless Power Consortium
- Vincotech and Infineon Introduce New Packaging Options at PCIM Europe
- Bosch Claims First Sub-$450 240V EV Charging Station
- Eaton and CA Technologies Join to Deliver Infrastructure Management for Data Centers
- DOE Selects Consortium to Develop Next-Generation Batteries for Automobiles
- Dana Receives Grant from NRCan to Improve Thermal Management for EV Battery Packs
- Power-One Gets $1 Billion – ABB Gets Inverters
- Renesas Adds IGBT Drivers with Micro-Isolator for Electric and Hybrid Vehicle Inverters
- European Project Reports Achievements in Drive to Shape the Future of Power Microelectronics
- Bosch Claims First Sub-$450 240V EV Charging Station
- Eltek Signs Agreement with Caterpillar on Telecom Hybrid Systems
- LED Lighting Power & Dimming Controls Introduced by Phihong
- Digitally-Isolated Gate Drivers Provide Robust Drop-in Replacements for Opto-Drivers
- Power-One Q1 2013 Results include 4 Cents-per-Share Loss due to Synqor Litigation
- Europeans Establish Dueling Projects to Advance Power Electronics Technologies
- Fairchild's Integrated Low-Side Gate Driver Incorporates 3.3-V LDO in 5-Lead SOT-23
- Green Building Power Forum 2010: Fujitsu Components America
- Darnell's Digital Power Forum 2009: CUI Incorporated
- Green Building Power Forum 2010: EMerge Alliance
- Green Building Power Forum 2010: Anderson Power Products
- Green Building Power Forum 2009: Independence Station
- Darnell's Digital Power Forum 2009: Coilcraft
- Darnell's Digital Power Forum 2009: Champs Technologies
- Darnell's Digital Power Forum 2009: EXAR Corporation
- Darnell's Digital Power Forum 2009: PMBus
- Darnell's Digital Power Forum 2009: Power Plaza
Design Features
October 22, 2012
Energy Efficiency with Class D Amplifier Modules
Class-D switching amplifiers are helping audio designers create personal multimedia devices and home audio/visual systems that demonstrate how compact and stylish equipment can also deliver high sound quality and high audio output power. The key to this breakthrough, providing freedom from the large and bulky boxes housing traditional audio products, lies in the class-D amplifier’s high energy efficiency, which is typically around 90%. This allows designers to reduce or eliminate heatsinks as well as using smaller-sized PCBs and smaller components such as transformers, connectors and power supplies.
Design Features
October 8, 2012
The Role of Hall Effect Sensors in Power Distribution Infrastructure
Power distribution units (PDUs) form an essential part of modern computing and data communications hardware. They provide multiple outputs for transferring electrical power with maximum efficiency, controlling the power capacity and safeguarding against the possible causes of supply interruption. With an ever increasing need from tech savvy consumers for higher data throughput and greater quantities of data storage capacity, as well as tough international legislation now governing CO&sub2; emissions, the demands being placed on these units are proving challenging for engineering teams to satisfy.
Product Focus
August 13, 2012
The Year in AC-DC Power Supply Technology
The past year witnessed significant new product releases, technological developments, and industry news related to the field of AC-DC Power Supply technology.