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BQ24450DW ACTIVE

Standalone integrated Battery charge controller for Lead-Acid batteries

Replaced by: BQ24650RVAR

Out of stock

Pricing


Qty Price (USD)
1-99 11.303
100-249 9.215
250-999 7.243
1,000+ 6.143

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Quality, reliability
& packaging information info-circle

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins SOIC (DW) | 16
Package qty | Carrier: 40 | TUBE
Operating temperature range (°C)
View TI packaging information

Features for the BQ24450

  • Regulates Both Voltage and Current During Charging
  • Precision Temperature-Compensated Reference:
    • Maximizes Battery Capacity Over Temperature
    • Ensures Safety While Charging Over Temperature
  • Optimum Control to Maximize Battery Capacity and Life
  • Supports Different Configurations
  • Minimum External Components
  • Available in 16-Pin SOIC (DW)
  • APPLICATIONS
    • Emergency Lighting Systems
    • Security and Alarm Systems
    • Telecommunication Backup Power
    • Uninterruptible Power Supplies

Description for the BQ24450

The bq24450 contains all the necessary circuitry to optimally control the charging of valve-regulated lead-acid batteries. The IC controls the charging current as well as the charging voltage to safely and efficiently charge the battery, maximizing battery capacity and life. Depending on the application, the IC can be configured as a simple constant-voltage float charge controller or a dual-voltage float-cum-boost charge controller.

The built-in precision voltage reference is especially temperature-compensated to track the characteristics of lead-acid cells, and maintains optimum charging voltage over an extended temperature range without using any external components. The ICs low current consumption allows for accurate temperature monitoring by minimizing self-heating effects.

The IC can support a wide range of battery capacities and charging currents, limited only by the selection of the external pass transistor. The versatile driver for the external pass transistor supports both NPN and PNP types and provides at least 25mA of base drive.

In addition to the voltage- and current-regulating amplifiers, the IC features comparators that monitor the charging voltage and current. These comparators feed into an internal state machine that sequences the charge cycle. Some of these comparator outputs are made available as status signals at external pins of the IC. These status and control pins can be connected to a processor, or they can be connected up in flexible ways for standalone applications.

Out of stock

Pricing


Qty Price (USD)
1-99 11.303
100-249 9.215
250-999 7.243
1,000+ 6.143

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships  tube or tray  devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

Add a quantity to your cart and begin the checkout process to view the options available to select lot or date codes from existing inventory.

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