BQ25170DSGR

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BQ25170DSGR

800-MA LINEAR BATTERY CHARGER FO

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規格

Package Tape & Reel (TR),Cut Tape (CT)
Series BQ25170
ProductStatus Active
BatteryChemistry Multi-Chemistry
NumberofCells 1
Current-Charging Constant - Programmable
ProgrammableFeatures Current, Voltage
FaultProtection Over Current, Over Temperature, Over Voltage, Short Circuit
ChargeCurrent-Max 800mA
BatteryPackVoltage 4.4V
Voltage-Supply(Max) 6.6V
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 8-WFDFN Exposed Pad

概述

Description

The BQ25170DSGR is a highly efficient, linear battery charger from Texas Instruments designed for space-constrained applications. It supports a single-cell Li-Ion, Li-Polymer, and LiFePO4 batteries, offering a compact and cost-effective solution for portable devices. The device operates with a wide input voltage range and can be powered through USB or an AC adapter. It features a programmable charge current up to 800 mA and includes a highly accurate, adjustable float voltage to ensure precise charging.
Key features include a low quiescent current for extended battery life, thermal regulation for safe operation, and various protection mechanisms such as overvoltage, undervoltage, short-circuit, and thermal shutdown protection. Its tiny footprint, thanks to the small DSG package, makes it ideal for wearable and IoT devices. Additionally, it supports a variety of charging configurations and offers status indication pins for easy monitoring. Overall, the BQ25170DSGR is designed for simplicity and reliability in single-cell battery charging applications.

Features

The BQ25170DSGR is a highly efficient, compact linear battery charger designed for use in space-constrained portable applications. It supports lithium-ion and lithium-polymer batteries. Key features include:
1. Low Quiescent Current: The device boasts an ultra-low quiescent current, which helps extend battery life.
2. High Input Voltage: It supports a wide input voltage range, up to 18V, providing flexibility in power source options.
3. Programmable Charge Current: The charging current is programmable up to 800 mA, allowing for tailored charging profiles.
4. Battery Voltage Regulation: The device offers precise battery voltage regulation with selectable termination voltages.
5. Thermal Regulation: Built-in thermal regulation optimizes charge rate based on temperature to prevent overheating.
6. Protection Features: It includes several protections, such as over-voltage, short-circuit, and thermal shutdown protection.
7. Status Indication: The device provides status indication for charge status and fault conditions through an open-drain output.
8. Small Package Size: The BQ25170DSGR comes in a small, 8-pin WSON package, ideal for compact designs.
These features make it a robust choice for applications needing efficient battery management in limited spaces.

Package

The BQ25170DSGR is a battery charge management IC from Texas Instruments. It comes in a DSG package type, specifically a 6-pin WSON (DSG) package, which is compact and suitable for space-constrained applications.

Pinout

The BQ25170DSGR is a linear battery charger IC from Texas Instruments, designed for single-cell Li-Ion and Li-Polymer batteries. It is typically available in an 8-pin WSON (DSG) package. Here is a brief overview of its pin functions:
1. IN: Input power supply.
2. GND: Ground connection.
3. OUT: Charger output to the battery.
4. TS: Temperature sense input; monitors battery temperature.
5. STAT: Status output; indicates charging status and fault conditions.
6. ISET: Charge current set; programs the charge current.
7. CE: Charge enable; active-low input to enable or disable charging.
8. PG: Power-good indicator; indicates adequate input voltage.
This configuration allows for efficient charging management with added safety features like temperature monitoring and status indication, making it suitable for compact applications.

Manufacturer

The BQ25170DSGR is manufactured by Texas Instruments, an American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, which are used in electronic devices across diverse industries. The company is known for its innovation in analog and embedded processing products, making it a leader in the semiconductor industry.

Application

The BQ25170DSGR is a highly efficient battery charge management IC designed for portable and space-constrained applications. Its primary application areas include wearable devices, fitness trackers, medical devices, hearing aids, and other low-power consumer electronics. It is ideal for single-cell lithium-ion or lithium-polymer battery charging, providing features like precise charge termination, low quiescent current, and a wide input voltage range, making it suitable for various compact, battery-powered devices.

Equivalent

Equivalent products to the BQ25170DSGR, a battery charge management IC, include the MCP73831 from Microchip, the MAX1811 from Maxim Integrated, and the TP4056 from NanJing Top Power ASIC Corp. Each of these ICs is designed for similar applications in lithium-ion or lithium-polymer battery charging with various features that may differ slightly, such as charging current limits and package options. Always compare datasheets to ensure compatibility with specific requirements.

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