Mfr Part #:

BQ2954

Mfr Name: BQ

The BQ2954 from Texas Instruments is a switch-mode Li-Ion charge management IC. It offers features like pulse-width modulation control for voltage and current regulation.

✓ Total Stock: 92 pcs

$ Price Range: $0.99

BQ2954 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
PROSOFT ELECTRONICS ✓ Non-Authorised Inventory information	92 pcs On Request	92 pcs	On Request	1	On Request	On Request	0014G/	On Request	On Request

BQ2954 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	BQ
Charge Current	2 A
Control Interface	Standalone (RC-Settable)
Features	JEITA profile
Mounting Type	Surface Mount
Operating Temperature	0 °C / 70 °C

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BQ2954 Description

Short technical summary and product information.

The Texas Instruments BQ2954 is a versatile Li-Ion charge management IC designed for safe and efficient battery charging. It utilizes a flexible pulse-width modulation (PWM) regulator to precisely control both voltage and current during the charging process. The switch-mode design minimizes power dissipation, contributing to overall efficiency.

For enhanced safety, the BQ2954 includes pre-charge qualification to detect shorted or damaged cells and conditions the battery before fast charging begins. Charging is continuously qualified by temperature and voltage limits, with battery temperature monitored via an external thermistor following the JEITA profile. The device supports charging for 1 to 4 series Li-Ion or Li-Polymer cells, with a maximum charge current of 2A.

The BQ2954 operates within an input voltage range of 4.5V to 5.5V, with an absolute maximum input voltage of 7V. Its operating temperature range is from 0°C to 70°C. The IC provides direct LED control outputs to display charge status and fault conditions, offering clear indications of the charger's state. It charges batteries in two phases: a constant-current phase for approximately 70% capacity, followed by a voltage-regulation phase to complete the charge.

Available in a 16-pin narrow DIP or SOIC package, the BQ2954 is suitable for various battery management applications requiring reliable and controlled charging.

BQ2954 Quick Information

Product Type: Battery Charger IC

Canonical Name: BQ2954 Li-Ion Charge Management IC

Subcategory: Charge Management IC

BQ2954 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

BQ2954 Estimated Pricing

Qty	Low	High
1+	$0.99	$0.99

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

BQ2954 Features

Safe charge of Li-Ion battery packs.
Pulse-width modulation control for regulation.
Programmable high-side/low-side current-sense.
Fast charge termination by minimum current.
Direct LED control for status indication.

BQ2954 Applications

Li-Ion battery pack charging.
Portable electronic device power.
Battery management systems.
Consumer electronics power.

BQ2954 FAQs

5 frequently asked questions generated from this part’s specifications.

What is the maximum charge current for the BQ2954?

The maximum charge current for the BQ2954 is 2A.

What is the operating input voltage range for the BQ2954?

The BQ2954 operates with a minimum input voltage of 4.5V and a maximum input voltage of 5.5V.

What is the operating temperature range of the BQ2954?

The BQ2954 operates within a temperature range of 0°C to 70°C.

What cell chemistries does the BQ2954 support?

The BQ2954 supports Li-Ion and Li-Polymer cell chemistries.

What package types are available for the BQ2954?

The BQ2954 is available in a 16-pin narrow DIP or SOIC package.