Product category: Analogue and Mixed Signal ICs
News Release from: Microchip Technology | Subject: PS700 battery monitor
Edited by the Electronicstalk Editorial Team on 30 January 2004
Battery monitor moves
in on mobile devices
Microchip's PS700 battery monitor provides precise predictions of battery capacity and condition resulting in longer run time and improved system-power management
The device predicts runtime, charge time and battery state of health while accurately monitoring and reporting current operational conditions and battery status. The battery monitor integrates a precision, programmable, A/D convertor that can be configured to measure voltage, current and temperature with resolutions of 9-16bit.
This article was originally published on Electronicstalk on 30 January 2004 at 8.00am (UK)
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The device eliminates the need for external components by incorporating a temperature sensor and regulator.
Battery information is provided to the host over an industry-standard SMbus interface while battery and user data is stored within the onboard 4Kbit EEPROM.
The PS700 can use an onboard or external temperature sensor to determine battery temperature.
The PS700 operates in four power modes, consuming less than 80uA in run mode and less than 1uA in sleep mode.
The device supports one- and two-cell lithium batteries and three- to six-cell nickel metal hydride battery packs.
Microchip offers an evaluation kit PS7070EV, which includes a PS7070 evaluation board, PS700 IC, PS070 PowerMate device programmer and PS051 PowerInfo2 interface board, USB cable and documentation.
The PS700 is available in 8-pin TSSOP.
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