Product category:
Power Supply ICs and Controllers
News Release from: Maxim Integrated Products | Subject: MAX8672 backup-battery management IC
Edited by the Electronicstalk Editorial
Team on 07 December 2006
Complete backup-battery management IC
Maxim Integrated Products introduces the MAX8672 backup-battery management IC that provides complete charging and backup switchover control for enterprise PDAs and other smart portable devices.
for rechargeable NiMH coin cells Maxim Integrated Products introduces the MAX8672 backup-battery management IC that provides complete charging and backup switchover control for enterprise PDAs and other smart portable devices The device charges 1-cell or 2-cell NiMH coin-cell batteries and features programmable charge current, termination voltage, and charge timer
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
Related stories
Speedy DAC claims dynamic superiority for comms
The MAX5195 is a 14bit 260Msample/s DAC claimed to provide the world's best dynamic performance in spurious-free dynamic range, intermodulation distortion and signal to noise ratio.
Low-power serial ADC runs up to 200Ksample/s
New from Maxim Integrated Products, the MAX1162 serial-interface 16bit A/D convertor connects directly to SPI, QSPI and Microwire devices without additional interface logic.
An optimised charge algorithm allows standard fast-charge, trickle-charge, and deep-recovery-charge modes to optimise charge time and maximise cell life.
An integrated thermistor sensor disables fast-charging when the temperature exceeds the safe operating range; a battery-restart-charge threshold prevents overcharging.
The MAX8672 manages backup switchover from a primary power source.
An accurate, on-chip voltage detector monitors the main supply and backs up two system supplies (typically I/O and memory) when the main power source falls below the preset voltage.
The backup cells are stepped up by an on-chip, synchronous-rectified, low-quiescent-current boost convertor; a low-quiescent-current LDO generates a second backup voltage.
Additionally, the device does not require external diodes or FETs to prevent reverse currents on the backup-battery, boost, and LDO pins.
The MAX8672 is available in a space-saving 3mm x 3mm, 14-pin TDFN package and is specified for the extended temperature range (-40 degrees Celsius to +85 degrees Celsius).
Prices start at $1.87 (1000-up, FOB USA).
An evaluation kit is available to speed designs.
A Data Sheet for this product is also available.
• Maxim Integrated Products: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
