Micrel Introduces 85V Half Bridge MOSFET Drivers with Integrated Bootstrap Diode, Widest Programmable Gate Drive Range
Solution Offers Up To 40 Percent Longer Operating Time Over Existing Devices for Battery Powered Applications
Micrel Inc., industry leader in high-performance Linear and Power solutions, LAN and timing and communications solutions, has released the new MIC4604, a 85V Half Bridge MOSFET driver that features an integrated 85V Bootstrap diode and one of the widest programmable gate drive ranges (5.5V to 16V) in the industry.
These features make the MIC4604 an ideal solution for the industry’s most demanding battery operated motor applications including Communications (HF) Radios, Power tools and Power DC/AC inverters.
Please contact Allyanz today for more details or evaluation samples of the MIC4604.
Micrel Eliminates Dual-Stage Conversion For Point-Of-Load Applications With High-Efficiency, Wide-Input Switching Regulator IC
Newest Member Of SuperSwitcher II(TM) Family Has Micrel’s Hyper Speed Control(TM) Delivering Ultra-Fast Transient Response And Minimizing Output Capacitance While Achieving Highest Power Density
Micrel Inc., (Nasdaq:MCRL), an industry leader in analog, high-bandwidth communications and Ethernet IC solutions, is now supporting volume quantities of the MIC28510, a wide-input synchronous switching regulator IC that provides step-down conversion with:
- better than 94 percent peak efficiency
- from an input voltage as high as 75V
- with maximum output current of 4A.
This solution eliminates the need for a costly dual-stage conversion approach for point-of-load applications. The MIC28510 delivers up to 100W of power in a 13cm2 device – a new standard for power density.
Benefiting from Micrel’s proprietary adaptive on-time control architecture, the MIC28510 provides ultra-fast transient response for today’s demanding applications such as base stations, Power-over-Ethernet, home security systems and solar inverters. The MIC28510 integrates features like:
- high-side and low-side power switches (to provide a highly efficient output down to 0.8V
- a programmable switching frequency of up to 500 kHz
- an enable pin for very low power shutdown
- internal soft start
- under-voltage lockout and internal compensation
The MIC28510 is also Any Capacitor stable independent of output ESR, thus solving the stability problem power supply designers face with distributed output capacitance.
The device also provides a host of protection features such as:
- pre-bias safe start-up
- over temperature protection
- fold-back current limit
- short circuit protection
- a -40-deg C to 125-deg C junction temperature range.
The MIC28510 is available in a lead free 28-Lead 5mm x 6mm MLF(R) package.
Micrel Inc., an industry leader in analog, high bandwidth communications and Ethernet IC solutions, has released the KSZ8051/8031 family of ultra low-power, small package single-port 10/100 Physical Layer Transceivers. These devices provide the MII or RMII interface to transmit and receive data over standard CAT-5 unshielded twisted pair (UTP) cable or fiber. The solution is based on Micrel’s enhanced mixed-signal design which enables power consumption to be reduced by half compared to the prior generation. The devices feature high integration (on-chip termination and integrated regulator), reduced system cost and simplified system design. The ICs also feature higher performance and an extended feature set all in very compact package options.
Full compliance to the IEEE 802.3/802.3u standard ensures that the devices will work seamlessly with other standards compliant, already deployed devices. The ultra low power design satisfies the green requirement in today’s consumer, industrial and automotive Ethernet applications. On-chip termination not only eliminates components, simplifies PCB design and reduces system BOM, but also improves overall signal integrity and EMI emissions. The single external power supply (3.3V), with integrated regulator, enables core operation at 1.2V with IO at 1.8V/2.5V/3.3V. The KSZ8051MLL/FLL comes in a 48-pin LQFP package and provides a MII MAC interface with the option to interface to copper or fiber media. The KSZ8051MNL/RNL is a copper transceiver housed in a 32-pin QFN with the option for a MII or RMII MAC interface. The KSZ8031RNL offers the smallest package, 24-pin QFN, with an RMII MAC interface. Auto MDI/MDIX crossover support eliminates the need for a cross-over cable, thus reducing installation costs. Easy to use, the LinkMD(R) TDR-based cable diagnostics allow for identification of common cabling problems, including those not addressed by IEEE standards. This simplifies network deployment and reduces network downtime.
The low emissions and Micrel’s signature high reliability and quality also make these devices suitable for connectivity applications in the fast growing industrial automation and automotive markets.
For more details on these new PHY Layer Transcievers from Micrel, please contact us.