BQ24311DSGR

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BQ24311DSGR

IC BATT PROTECTION LI-ION 8WSON

  • Manufacturer
  • Mfr. Part #BQ24311DSGR
  • Package WSON-8
  • Datasheet
  • In Stock2841

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Specifications

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
Function Battery Protection
BatteryChemistry Lithium Ion
FaultProtection Over Current, Over Temperature, Over/Under Voltage
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 8-WFDFN Exposed Pad

Overview

Description

The bq24311DSGR is a TI single‑cell Li‑ion battery charger with integrated power‑path management. It accepts a USB/5V input and charges one Li‑ion/Li‑polymer cell using constant‑current/constant‑voltage (CC/CV) charging, while also providing system power to the load during charging.
Key features:
- Power‑path: can power the system while charging the battery
- CC/CV charging with preconditioning for deeply discharged cells
- Safety protections: overvoltage, overcurrent/short‑circuit, reverse current protection, thermal regulation
- Battery temperature monitoring via NTC input
- Minimal external components; package‑level integration
Package: DSGR indicates TI’s 16‑pin leadless/low‑profile package variant. Use cases include portable devices and wearables requiring a compact, cost‑effective USB Li‑ion charging solution. Some variants offer optional control/interfaces (e.g., I2C) for setting current or monitoring status.

Features

Key features of TI bq24311DSGR:
- Stand-alone single-cell Li‑ion battery charger with USB input support (5 V) and power-path management.
- CC/CV charging to 4.2 V with programmable charge current via external resistor.
- Precharge/trickle charging for deeply discharged cells and automatic termination when current drops below threshold.
- Power-path architecture keeps the system powered while charging.
- Battery temperature monitoring via external NTC input with thermal protection.
- Comprehensive safety: UVLO, over-voltage, over-current, reverse-current protection, and over-temperature shutdown.
- Status and fault indication outputs (e.g., CHG/STAT) for easy system integration.
- Small DSGR package with minimal external components; easy to design in.

Package

BQ24311DSGR is in a VQFN-16 package (3.0 × 3.0 mm), RoHS-compliant.

Pinout

- Pin count: 16 pins (DSGR package, VQFN-16 style).
- Function: Single‑cell Li‑ion battery charger with power‑path management. It accepts a 5V input (USB/adaptor), provides CC/CV charging to 4.2V, supports programmable charge current, and includes basic status outputs and protection features with system-load sharing.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational technology company that designs and manufactures semiconductors and integrated circuits (analogue, embedded processing, and related electronics).

Application

Application areas: single-cell Li‑ion/Li‑polymer battery charging for portable electronics powered from USB or 5V adapters. Suitable for: mobile phones and feature phones, digital cameras/camcorders, MP3/MP4 players, handheld gaming devices, GPS units, wearables, USB power banks, and other compact USB-charged devices.

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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