3/28/2003 - Microchip Technology Inc.(NASDAQ: MCHP), a leader in providing Microcontroller and Analog Semiconductors, introduced the PS402, a Smart Battery System (SBS)-compliant, battery management integrated circuit (IC) that integrates all rechargeable battery monitoring functions for Nickel Metal Hydride (NiMH) batteries on a single chip. With accuracy to within +/-1 percent, the PS402 provides the host system and user with valuable information that can be utilized for enhanced power management while providing the system’s user with optimum predictability.
The PS402 is a fuel gauge IC that combines Microchip’s RISC-based, mirocontroller with an advanced 15-bit analog-to-digital (A/D) converter. Accurate information from the battery helps enable the user to balance critical tasks with runtime while extending the life of the battery.
Microchip’s Accuron Technology refers to its advanced-battery models and patented algorithms, which are stored in on-chip programmable memory. The PS402 incorporates Accuron Technology to provide a high-accuracy, cost-effective solution for NiMH applications.
In addition, the low-component count on a PS402-based solution reduces implementation cost and circuit board size. The PS402 minimizes space requirements through integration of a precision time base, regulator and temperature sensor. The precise, on-chip time base eliminates the need for an external crystal while the PS402 derives its power directly from the battery, eliminating the need for an external regulator. To monitor battery temperature, the user has the option of selecting an integrated temperature sensor or an external thermistor. The host communication uses a compliant SBData v1.1 command set over SMBusTM v1.1 2-wire interface.
“Over the past five years the power consumption in portable electronics has grown; meanwhile, the increase in battery capacity to support the rising system power consumption has lagged,” said Doug Phillips, principal marketing engineer for Microchip’s PowerSmart product line. “Microchip designed the PS402 to offer its customers an accurate battery management technology that bridges the gap between battery capacity and system power requirements.”
Microchip’s PowerSmart battery management family includes the PS401, the first in the 400 series, focusing on Li-Ion and Li-Polymer applications for the notebook, PDA and digital camera markets. The PS402 is designed for NiMH applications that use 6-12 cells in series. For removable battery packs, the PS402 is embedded in the battery pack, meanwhile, for embedded applications it can be implemented on the system board.
The tools for this battery management offering consist of the PowerToolTM development software combined with PowerCalTM and PowerInfoTM hardware to offer a complete solution for configuring, calibrating and testing Accuron-based smart batteries.
The PS402 is packaged in a single-chip 28-pin SSOP and is priced at $4.00 in quantities of 1,000. Samples and volume production quantities are available today. For additional information, contact any Microchip sales representative or authorized worldwide distributor or visit www.microchip.com
About Microchip Technology
Microchip has integrated analog technology, peripherals and features to meet today's demanding design requirements. Our broad spectrum of analog products addresses thermal management, power management, mixed-signal, linear and interface solutions. Combined with “Intelligent Analog” microcontrollers, Microchip offers an extensive analog portfolio for thousands of high-performance design applications in the automotive, communications (wireless), consumer, computing and industrial control markets.
Microchip Technology Inc. manufactures the popular PICmicro® field-programmable RISC microcontrollers, which serve 8- and 16-bit embedded control applications, and a broad spectrum of high performance linear and mixed-signal, power management and thermal management devices. The Company also offers complementary microperipheral products including interface devices; microID® RFID devices; serial EEPROMs; and the patented KEELOQ® security devices. This synergistic product portfolio targets thousands of applications and a growing demand for high-performance designs in the automotive, communications, computing, consumer and industrial control markets. The Company's quality systems are ISO 9001 (1994 version) and QS9000 (1998 version) certified. Microchip is headquartered in Chandler, Ariz. with design facilities in Mountain View, Calif. Plano, TX., Bangalore, India; and a European Design Center in Lausanne, Switzerland; semiconductor fabrication facilities in Tempe and Chandler, Ariz.; Gresham, Ore.; and Puyallup, Wash.; and assembly and test operations near Bangkok, Thailand. Microchip employs approximately 3,350 people worldwide and has sales offices throughout Asia, Europe, Japan and the Americas. More information on the Company can be found at www.microchip.com.
* SBS is an industry standard in battery management. www.sbs-forum.org
The Microchip name and logo, PIC, PowerSmart, PICmicro, microID and KEELOQ are registered trademarks of Microchip Technology Inc. in the USA and other countries. Accuron, PowerTool, PowerInfo and PowerCal are trademarks of Microchip Technology Inc.
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