AMI Semiconductor's New Octal High-side Driver Provides Simplified Control of Automotive Loads; Miniature ASSP Integrates Eight Drivers, Protection, Microcontroller Interface, Charge Pump and Diagnostics into Single SO28.POCATELLO, Idaho Pocatello (IPA: [po kə tɛ lo]) is the county seat and largest city of Bannock CountyGR6 -- AMI Semiconductor AMI Semiconductor is a company engaged the design and manufacture of customer specific integrated circuit solutions, including solutions for the automotive, medical and industrial markets. Among its products are products that integrate processing of analog and digital signals. (Nasdaq:AMIS A·mis , Kingsley 1922-1995. British writer best known for his novels, including Lucky Jim (1954) and Jake's Thing (1978). ), a designer and manufacturer of state-of-the-art integrated mixed-signal and structured digital products for the automotive, medical and industrial markets, has expanded its family of ASSPs (application specific standard products) with a new high-side driver IC that will simplify the control of transistor gates, relays, valves, solenoids, LEDs and other loads in 12V automotive environments. Supplied in a compact SO28 package, the AMIS-39100 is a highly integrated driver IC, with eight high side (HS) output drivers and a range of functions and features designed to significantly reduce component count and cost. Built-in functionality includes a serial-to-parallel interface (SPI (1) (Stateful Packet Inspection) See stateful inspection. (2) (Service Provider Interface) The programming interface for developing Windows drivers under WOSA. ) for direct connection to a microcontroller, an integrated diagnostic circuit, a charge pump A charge pump is an electronic circuit that uses capacitors as energy storage elements to create either a higher or lower voltage power source. Charge pump circuits are capable of high efficiencies, sometimes as high as 90-95% while being electrically simple circuits. , and short circuit and thermal overload protection. Each of the eight output drivers can drive a continuous current of 275mA when connected to an inductive load of 300mH. Higher individual output currents are possible by limiting device current to the total maximum. The drivers will withstand short circuits to the battery or to ground, respectively, even in situations where the device itself has lost its ground connection. The drivers also provide over-current limiting and in the case of a fault condition are switched off. Furthermore, the integrated charge pump and over-temperature protection circuitry avoid the possibility of thermal runaway This article is about Thermal runaway. For other uses, see Runaway. Thermal runaway refers to a situation where an increase in temperature changes the conditions in a way that causes a further increase in temperature leading to a destructive result. , even at low battery voltages. Compatible with 3.3V and 5V microcontrollers, the SPI interface is used to control each of the individual output drivers and to provide a route for the integrated diagnostic circuit to feedback error signals. The interface can also be used to read back the status of the built-in thermal shutdown protection function. The AMIS-39100 ASSP (Application Specific Standard Part) An ASIC chip that is designed as a generic device for a particular market. Whereas an ASIC is typically used only by its creator, ASSPs are used by many different companies in the design of their products. See ASIC. incorporates a power down mode to reduce power consumption during non-active periods and uses an integrated slope control function that ensures low electromagnetic emission (EME n. 1. An uncle. ). Operating temperature is rated at -40(degree)C and 105(degree)C. "Automotive designers are demanding actuator and controller solutions that help them simplify and speed application development," says Tony Denayer, AMI Semiconductor's senior vice president, high voltage The term high voltage characterizes electrical circuits, in which the voltage used is the cause of particular safety concerns and insulation requirements. High voltage is used in electrical power distribution, in cathode ray tubes, to generate X-rays and particle beams, to communications and ASSPs. "The high levels of integration that the AMIS-39100 offers addresses this demand, and complements our existing range of standard components for driving and controlling motors and loads in automotive applications." The AMIS-39100 is automotive-compliant and available now at a cost of $1.92 each for 1000 pieces. About AMI Semiconductor AMI Semiconductor (AMIS) is a leader in the design and manufacture of silicon solutions for the real world. As a widely recognized innovator in state-of-the-art integrated mixed-signal products, mixed-signal foundry services and structured digital products, AMIS is committed to providing customers with the optimal value, quickest time-to-market semiconductor solutions. Offering unparalleled manufacturing flexibility and dedication to customer service, AMI Semiconductor operates globally with headquarters in Pocatello, Idaho, European corporate offices in Oudenaarde, Belgium, and a network of sales and design centers located in the key markets of North America North America, third largest continent (1990 est. pop. 365,000,000), c.9,400,000 sq mi (24,346,000 sq km), the northern of the two continents of the Western Hemisphere. , Europe and the Asia Pacific region. For more information please visit the AMIS Web site at www.amis.com. |
|
Printer friendly
Cite/link
Email
Feedback
Reader Opinion