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BQ26231PW

Battery Li-Ion/-Pol, NiMH Charge/Discharge Counter IC, Serial Interface, 2.8-5.5 V supply, TSSOP-8

BQ26231PW - Battery Li-Ion/-Pol, NiMH Charge/Discharge Counter IC, Serial Interface, 2.8-5.5 V supply, TSSOP-8

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Manufacturer Part No:
BQ26231PW
Order Code:
1212265

Product Overview

The BQ26231PW is a Charge/Discharge Counter works with an intelligent host controller, providing state-of-charge information for rechargeable Li-ion, Li-polymer, or NiMH batteries. It measures the voltage drop across a low-value series sense resistor between the negative terminal of the battery and the battery pack ground contact. By using the accumulated counts in the charge, discharge and self-discharge registers, an intelligent host controller can determine battery state-of-charge information. To improve accuracy, an offset count register is available. The system host controller is responsible for the register maintenance by resetting the charge in/out and self-discharge registers as needed. It features 13 bytes of registers, which contain the capacity monitoring and status information. It is ideal for portable applications with nonremovable rechargeable battery pack.
  • Multifunction high-accuracy coulometric charge and discharge counter
  • Internal offset calibration improves accuracy
  • 128 bytes of general-purpose RAM
  • Internal temperature sensor eliminates the need for an external thermistor
  • High-accuracy internal timebase eliminates external crystal oscillator
  • Low power consumption
  • Single-wire HDQ serial interface
  • Green product and no Sb/Br

Applications

Power Management

Product Information

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:
Li-Ion, Li-Pol, NiMH

:
1 Wire, Serial

:
2

:
2.8V

:
5.5V

:
TSSOP

:
8Pins

:
-20°C

:
70°C

:
-

:
-

:
MSL 2 - 1 year
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