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bq26221

Features: ` Communicates Directly With the Integrated HDQ Engine in TI OMAP Processor` Multifunction Monitoring Integrated Circuit Designed to Work With an Intelligent Host Controller : − Provides State of Charge Information for Rechargeable Batteries− Provides Accurate Battery...

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SeekIC No. : 004301271 Detail

bq26221: Features: ` Communicates Directly With the Integrated HDQ Engine in TI OMAP Processor` Multifunction Monitoring Integrated Circuit Designed to Work With an Intelligent Host Controller : W...

bq26221 Data Sheet

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Part Number:
bq26221
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/25

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Product Details

Description



Features:

` Communicates Directly With the Integrated HDQ Engine in TI OMAP Processor
` Multifunction Monitoring Integrated Circuit Designed to Work With an Intelligent Host Controller :
  − Provides State of Charge Information for Rechargeable Batteries
  − Provides Accurate Battery Voltage and Temperature Measurement
` High Accuracy Coulometric Charge and Discharge Current Integration With Automatic Offset Compensation
` 11-Bit Analog-to-Digital Converter Reports Battery Voltage With Gain and Offset Correction
` Differential Current Sense
` 32 Bytes of General Purpose RAM
` 96 Bytes of Flash (Including 32 Bytes of Shadow Flash)
` 8 Bytes of ID ROM
` Internal Temperature Sensor Eliminates the Need for an External Thermistor
` Programmable Digital Input/Output Port
` High-Accuracy Internal Timebase Eliminates External Crystal Oscillator
` Low Power Consumption:
  − Operating : 30 A
  − Sleep: 1 A
  − Hibernate: 600 nA
` Single-Wire HDQ Serial Interface
` Packaging: 8-LEAD TSSOP


Pinout

Connection Diagram


Specifications

    UNIT
Supply voltage (VCC with respect to GND) 0.3 V to 7 V V
Input voltage, SRP and SRN, RBI, GPIO and BAT (all with respect to GND) −0.3 to VCC + 0.3 V V
Input voltage, HDQ (with respect to GND) −0.3 to 7.0 V
Output current (GPIO) 5 mA
Output current (HDQ) 5 mA
Operating free-air temperature range, TA -20 to 70
Storage temperature range, Tstg −65 to 150
Lead temperature (soldering, 10 s) 300

(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability




Description

The bq26221 is an advanced battery monitoring device designed to accurately measure the charge and discharge currents in rechargeable battery packs. Intended for pack integration, the bq26221 contains all the necessary functions to form the basis of a comprehensive battery capacity management system in portable applications such as cellular phones, PDAs, or other portable products.

The bq26221 works with the host controller in the portable system to implement the battery management system. The host controller is  responsible for interpreting the bq26221 data and communicating meaningful battery data to the end-user or power management system.

The bq26221 provides 64 bytes of general-purpose flash memory, 8 bytes of ID ROM and 32 bytes of flash-backed RAM for data storage. The nonvolatile memory can maintain formatted battery monitor information, identification codes, warranty information, or other critical battery parameters of bq26221 during periods when the battery is temporarily shorted or deeply discharged.




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