Mfr Part #:

BQ24618

The Texas Instruments BQ24618 is a highly integrated, USB-friendly, synchronous switched-mode battery charger IC. It supports 1 to 6 Li-Ion or Li-Polymer cells with charge currents up to 10A.

✓ Total Stock: 22,600 pcs

$ Price Range: $1.29

BQ24618 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	22,600 pcs On Request	22600 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

BQ24618 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Texas Instruments
Input Voltage	4.7 V to 28 V
Number of Pins	24
Operating Temperature	-40°C to 85°C

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BQ24618 Description

Short technical summary and product information.

The BQ24618 from Texas Instruments is a versatile, stand-alone battery charger controller designed for Li-Ion and Li-Polymer battery packs. It operates within a wide input voltage range of 4.7V to 28V, making it USB-friendly and suitable for various power sources.

This device features a 600-kHz synchronous buck converter, enabling efficient charging with up to 10A of charge and adapter current. It offers high-accuracy voltage and current regulation, with ±0.5% charge voltage accuracy and ±3% charge and adapter current accuracy. The charger operates in three phases: preconditioning, constant current, and constant voltage, with programmable termination and a safety timer.

Key integration includes automatic system power selection from adapter or battery, internal loop compensation, and soft start. Safety features are robust, encompassing input overvoltage protection, battery thermistor sensing for hot/cold charge suspend, battery detection, reverse-protection input FET, programmable safety timer, charge overcurrent protection, battery short protection, battery overvoltage protection, and thermal shutdown.

The BQ24618 is housed in a 24-pin VQFN package measuring 4mm x 4mm. Its low quiescent current, less than 15µA in off-state battery discharge, contributes to energy efficiency. Applications include tablet PCs, smartphones, portable media players, notebooks, and industrial equipment.

BQ24618 Quick Information

Product Type: Battery Charger IC

Canonical Name: BQ24618 Stand-Alone USB-Friendly Synchronous Switched-Mode Li-Ion or Li-Polymer Battery Charger

Subcategory: Power Management ICs

BQ24618 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

BQ24618 Estimated Pricing

Qty	Low	High
1+	$1.29	$1.29

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

BQ24618 Features

USB-friendly 4.7V to 28V input range.
Supports 1 to 6 Li-Ion/Li-Polymer cells.
Up to 10A charge and adapter current.
High-accuracy voltage and current regulation.
Low quiescent current for energy efficiency.

BQ24618 Applications

Ideal for tablet PCs and smartphones.
Suitable for portable media players.
Used in notebooks and ultra-mobile PCs.
Applicable to handheld terminals.
Designed for industrial and medical equipment.

BQ24618 FAQs

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

What is the input voltage range for the BQ24618?

The BQ24618 operates from a 4.7V to 28V input range.

What is the maximum charge current for the BQ24618?

The BQ24618 supports up to 10A of charge current.

How many battery cells can the BQ24618 charge?

It can support 1 to 6 Li-Ion or Li-Polymer battery cells.

What is the operating temperature range of the BQ24618?

The operating temperature range is -40°C to 85°C.

What package type is the BQ24618 available in?

The BQ24618 is available in a VQFN package.