Product category:
Power Supply ICs and Controllers
News Release from: Microchip Technology | Subject: PS402
Edited by the Electronicstalk Editorial
Team on 28 March 2003
Battery management chip dedicated to
NiMH cells
Microchip's new battery management IC integrates all rechargeable battery-monitoring functions for nickel metal hydride batteries on a single chip.
Microchip's new battery management IC integrates all rechargeable battery-monitoring functions for nickel metal hydride batteries on a single chip With accuracy to within +/-1%, the smart battery system compliant PS402 provides essential information for enhanced power management
This article was originally published on Electronicstalk on 10 Apr 2001 at 8.00am (UK)
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The PS402 is a fuel gauge IC that combines Microchip's RISC-based microcontroller with an advanced 15bit A/D convertor.
The device incorporates Microchip's Accuron technology, using advanced-battery models and patented algorithms to produce a high-accuracy, cost-effective solution for NiMH applications.
A precision 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.
Battery temperature can be monitored with the integrated temperature sensor or an external thermistor.
Host communication uses a compliant SBData v1.1 command set over SMbus v1.1 2-wire interface.
Microchip's PowerSmart battery management family includes the PS401, the first in the 400 series, focusing on Li-ion and Li-polymer applications for notebooks, PDAs and digital cameras.
The PS402 is designed for NiMH applications that use 6-12 cells in series.
The devices can be integrated into a removable battery pack, or implemented on the system board of an embedded application.
Tool support consists of the PowerTool development software combined with PowerCal and PowerInfo hardware.
The PS402 is packaged in a single-chip 28-pin SSOP.
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