Texas Instruments BQ24257YFFT

Mfr. Part

BQ24257YFFT

Manufacturer

Luminary Micro Texas Instruments. Y-IC is a quality distributor for this brand and we are committed to delivering the best products and services to you

Detailed Description

Single cell battery charger IC for multi chemistry packs in an ultra compact 30 ball DSBGA package. Designed for USB powered charging. Max charge current up to 2 A. Programmable constant charge with safety timer. Built in protection for over temperature and over voltage. Works across industrial temperature range minus 40 to 85 C. RoHS3 compliant. Base product family BQ24257. Current stock available 2699 units. Tape and reel packaging for automated assembly

Key Features

Single cell charger supports multi chemistry batteries such as Li Ion and Li Polymer and compatible variants within 4.44 V max pack voltage

USB input ready up to 6.5 V supply

Programmable constant charge current up to 2 A

Safety timer programmable for charge cycle control

Integrated fault protection over temperature and over voltage

Industrial operating temperature minus 40 to 85 C

Surface mount in 30 ball DSBGA for very small footprint

RoHS3 compliant and lead free

Key Advantages

Small footprint saves board space in compact designs

2 A charge capability shortens charge time for portable products

Multi chemistry support increases design flexibility

Built in protection and timers improve safety and reliability

USB friendly input simplifies power source selection

Proven TI charger family with broad ecosystem and documentation

Packaging

Type 30 ball DSBGA supplier device package 30 DSBGA TI code YFFT

Format Tape and Reel TR for high volume pick and place

Material Lead free RoHS3 compliant solder balls and mold compounds

Size Ultra compact fine pitch micro BGA footprint see datasheet for exact dimensions and land pattern

Pin configuration 30 ball grid array ball map per TI YFF package see datasheet ball assignment

Thermal characteristics Designed for minus 40 to 85 C ambient operation refer to datasheet for thermal metrics and layout guidance

Electrical properties Input supply up to 6.5 V battery pack voltage up to 4.44 V max charge current up to 2 A constant programmable charging

Lifecycle

Status Active based on our latest availability and TI public information not near discontinuation to our knowledge

Alternative and related models Verify specs and pinouts before substituting

- Texas Instruments BQ24250 BQ24251 BQ24252 BQ24258 BQ24259 variations offer different interfaces and termination voltages

- Texas Instruments BQ24074 BQ24070 single cell USB chargers lower current options and different feature sets

- Texas Instruments BQ24192 BQ24196 higher current I2C controlled single cell chargers with power path management

- Microchip MCP73831 MCP73832 compact single cell chargers lower current and simpler feature set

- Maxim Integrated MAX8903 USB charger solutions for single cell packs

If you need exact drop in or fully equivalent recommendations contact our sales team via the Y-IC website and we will match the best option for your design

Key Application Areas

Wearables smart bands and health trackers

Portable medical sensors and patch devices

IoT nodes and wireless sensor modules

Bluetooth speakers headsets and audio accessories

Handheld instruments and test tools

POS handheld terminals barcode scanners and mobile printers

Drones toys and small robotics using single cell packs

Backup charging for small UPS and gateway devices

Datasheet

Y-IC hosts the most authoritative and up to date datasheet for BQ24257YFFT on our product page. We recommend downloading the datasheet here to get complete electrical characteristics mechanical drawings ball maps layout guidelines and application notes

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