BQ24450 The Texas Instruments BQ24450 is a standalone integrated charge controller designed for valve-regulated lead-acid batteries. It regulates both voltage and current during charging.
Mfr Part #:

BQ24450

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ24450 is a standalone integrated charge controller designed for valve-regulated lead-acid batteries. It regulates both voltage and current during charging.
✓ Total Stock: 3 pcs
$ Price Range: $1.20

BQ24450 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3 pcs
3 pcs On Request 1 On Request On Request NO DC On Request On Request

BQ24450 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Interface
Operating Temperature Range
SVHC Present

BQ24450 Description

Short technical summary and product information.

The BQ24450 from Texas Instruments is an integrated charge controller specifically designed for optimally charging valve-regulated lead-acid batteries. It controls both charging current and voltage to safely and efficiently charge the battery, thereby maximizing its capacity and lifespan. The device can be configured as a simple constant-voltage float charge controller or a dual-voltage float-cum-boost charge controller.

 

Key features include a precision temperature-compensated voltage reference that tracks lead-acid cell characteristics, ensuring optimum charging voltage over an extended temperature range without external components. The IC supports a wide range of battery capacities and charging currents, limited only by the external pass transistor selection. The driver for the external pass transistor supports both NPN and PNP types and provides at least 25mA of base drive.

 

The BQ24450 is available in a 16-pin SOIC (DW) package. Its applications include emergency lighting systems, security and alarm systems, telecommunication backup power, and uninterruptible power supplies.

 

This controller operates with an input voltage range of 5V to 40V and supports battery charge voltages from 0V to 20V, with a maximum charge current of 10A. The operating temperature range is -40°C to 70°C.

BQ24450 Quick Information

Product Type: Battery Charge Controller IC
Canonical Name: BQ24450 Integrated Charge Controller for Lead-Acid Batteries
Subcategory: Integrated Charge Controller

BQ24450 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BQ24450 Estimated Pricing

Qty Low High
1+ $1.20 $1.20

Estimated market price range - modelled values for guidance only, not live distributor offers.

BQ24450 Features

  • Integrated charge controller for lead-acid batteries.
  • Regulates both voltage and current during charging.
  • Precision temperature-compensated voltage reference.
  • Supports 1-16 series lead-acid cells.
  • Available in 16-pin SOIC (DW) package.

BQ24450 Applications

  • Used in lead-acid battery charging systems.
  • Suitable for automotive and industrial backup power.
  • Ideal for standalone battery charger designs.
  • Can be used in solar charge controllers.
  • Works in temperature ranges -40°C to 70°C.

BQ24450 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the BQ24450?

The input voltage range is 5V to 40V (absolute maximum 40V).

What package does the BQ24450 come in?

It is available in an SOIC (DW) package measuring 10.3mm x 10.3mm.

What is the operating temperature range?

-40°C to 70°C.

What is the maximum charge current?

10A.

What is the battery charge voltage range?

0V to 20V.

How many series lead-acid cells does it support?

1 to 16 cells.

What control interface does the BQ24450 use?

Standalone RC-settable control interface.

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