Mfr Part #:

BQ2954

The BQ2954 from Texas Instruments is a Li-Ion Charge Management IC featuring a switch-mode buck control topology. It supports input voltages from 4.5V to 5.5V and a maximum charge current of 2A.

✓ Total Stock: 4,055 pcs

$ Price Range: $1.17

BQ2954 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	4,055 pcs On Request	4055 pcs	On Request	1	On Request	On Request	00+	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	Texas Instruments
Control Interface	Standalone (RC-Settable)
Features	JEITA profile
Halogen Free	No
Mounting Type	Surface Mount
Operating Temperature	0 to 70 °C
SVHC Present	Not Present

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BQ2954 Description

Short technical summary and product information.

The Texas Instruments BQ2954 is a Li-Ion Charge Management IC designed for safe and efficient battery charging. It utilizes a flexible pulse-width modulation regulator for precise control of voltage and current during the charging process. The switch-mode buck design minimizes power dissipation, making it an energy-efficient solution.

This IC supports charging for 1 to 4 series Li-Ion or Li-Polymer battery cells, with a maximum charge current of 2A. It operates within an input voltage range of 4.5V to 5.5V, with an absolute maximum input voltage of 7V. The device includes features such as pre-charge qualification to detect damaged cells and battery conditioning for low-voltage cells. Charging is continuously qualified by temperature and voltage limits, with support for JEITA profile battery temperature monitoring.

The BQ2954 offers direct LED control outputs to indicate charge status and fault conditions. It charges batteries in two phases: a constant-current phase for approximately 70% capacity, followed by a voltage-regulation phase to complete the charge. The device is available in a 16-pin narrow DIP or SOIC package and operates within a temperature range of 0°C to 70°C.

BQ2954 Quick Information

Product Type: Battery Charger IC

Series: BQ2954

Canonical Name: BQ2954 Li-Ion Charge Management IC

Subcategory: Li-Ion Charge Management

BQ2954 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

Lead Free: No

BQ2954 Estimated Pricing

Qty	Low	High
1+	$1.17	$1.17

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.
Pre-charge qualification detects damaged cells.

BQ2954 Applications

Ideal for Li-Ion battery pack charging.
Suitable for portable electronic devices.
Used in power management systems.
Enables status indication via LEDs.

BQ2954 FAQs

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

What is the input voltage range of the BQ2954?

The input voltage range is 4.5V to 5.5V, with an absolute maximum of 7V.

What is the maximum charge current of the BQ2954?

The maximum charge current is 2A.

How many series cells does the BQ2954 support?

It supports 1, 2, 3, or 4 series cells.

What is the operating temperature range of the BQ2954?

The operating temperature range is 0°C to 70°C.

What package options are available for the BQ2954?

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

What control interface does the BQ2954 use?

It uses a standalone RC-settable control interface.

Does the BQ2954 include battery temperature monitoring?

Yes, it includes battery temperature monitoring with a JEITA profile.