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PS700 pdf datasheet

消耗积分:3 | 格式:rar | 大小:573 | 2008-08-14

南风一号

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The PS700 is a cost-effective, highly accurate IC that
measures, stores and reports all of the critical
parameters required for rechargeable battery monitoring
with a minimum of external components. It precisely
measures charge/discharge current as well as voltage
and temperature of a battery pack. In addition, the
PS700 accurately accumulates both charge and
discharge current as independent parameters.
Temperature history can also be maintained for
calculating self-discharge effects.
The PS700 integrates a highly accurate 16-bit integrating
A/D converter that performs current measurement
to within ±0.5% error. On-chip counters precisely track
battery charge/discharge and temperature history. Also
included are an on-chip voltage regulation circuit, noncrystal
time base and on-chip temperature sensor. The
operating voltage range of the PS700 is optimized to
allow a direct interface to 1 or 2-series Li Ion/Li Poly
battery packs. 512 bytes of general purpose nonvolatile
EEPROM storage are provided to store factory
programmed, measured and user defined parameters.
Efficient communication is provided through an
industry standard SMBus/I2C™ compatible 2-wire
communications interface. This interface allows the
host to determine accurate battery status for effective
system power management and for communication to
the end user. A battery management solution utilizing
the PS700 delivers both space and total system
component cost savings for a wide variety of battery
operated applications.
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