BQ25619ERTWR

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BQ25619ERTWR

+BOM

IC BATT CHG LI-ION 1CELL 24WQFN

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Specifications

Attribute Value
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Battery Chemistry Lithium Ion/Polymer
Number of Cells 1
Current - Charging Constant - Programmable
Programmable Features Current, Voltage
Fault Protection Over Current, Over Temperature, Over Voltage
Charge Current - Max 1.8A
Battery Pack Voltage 4.52V
Voltage - Supply (Max) 13.5V
Interface I²C
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Overview

Description

The BQ25619ERTWR is a highly efficient, single-cell battery charger IC designed by Texas Instruments. It is suitable for wearable devices and other compact electronics due to its small size and high integration. This IC supports a wide input voltage range and features a high-efficiency synchronous switch-mode architecture that minimizes heat generation and improves charging efficiency. Key features include a programmable input current limit, a dynamic power path management (DPPM) function that allocates power efficiently between the system and battery charging, and a battery management system with integrated protection features.
The BQ25619ERTWR also supports USB On-the-Go (OTG) functionality, enabling power output to connected peripherals. With its fast charging capability and safety features such as thermal regulation, over-voltage protection, and short-circuit protection, it ensures reliable performance across various conditions. Its I2C interface allows for flexible control and status monitoring. This IC is typically used in applications requiring efficient power management and compact design, like smartphones, fitness trackers, and other portable electronic devices.

Equivalent

The BQ25619ERTWR is a single-cell battery charger IC by Texas Instruments. Equivalent products from other manufacturers may include:
1. Microchip MCP73831 - A linear charge management controller.
2. Analog Devices LTC4054 - A standalone linear charger.
3. Maxim Integrated MAX14676 - A low-power battery charger.
4. STMicroelectronics STC3115 - A battery management IC for single-cell Li-ion.
Ensure compatibility by comparing specifications like input voltage, charge current, and package type.

Features

The BQ25619ERTWR is a highly integrated switch-mode battery charge management and system power path management device. Key features include:
1. Input Voltage Range: Supports a wide input voltage range, typically up to 14V, making it suitable for various power sources.
2. High-Efficiency Charging: Offers high-efficiency charging with support for fast charging speeds, ideal for single-cell Li-Ion/Li-Polymer batteries.
3. Integrated Power Path Management: Ensures seamless power transfer between the input, battery, and system load, allowing the device to power the system while charging.
4. I2C Interface: Provides an I2C interface for programmability and status monitoring, enabling easy integration and control.
5. Safety Features: Includes battery temperature monitoring, over-voltage protection, and thermal regulation to enhance safety and reliability.
6. Low Quiescent Current: Optimized for low power consumption in standby mode, improving battery life.
7. Compact Package: Available in a small WQFN package, suitable for space-constrained applications.
These features make the BQ25619ERTWR an efficient solution for portable and wearable devices.

Pinout

The BQ25619ERTWR is a battery management IC manufactured by Texas Instruments. It is typically used for single-cell lithium-ion or lithium-polymer batteries. The IC is designed for high-efficiency fast charging, ideal for portable devices.
The BQ25619ERTWR comes in a 3 mm x 3 mm, 24-pin WQFN package. Here are some of its key functions:
1. Battery Charging: Provides high-efficiency charging with a configurable charge current.
2. Power Path Management: Manages power distribution between the system load and the battery charging.
3. Input Source Detection: Automatically detects input source type and adjusts charging parameters accordingly.
4. Safety Features: Includes over-voltage, over-current, and thermal protection to ensure safe operation.
5. I2C Interface: Allows for communication and control through an I2C interface for system integration.
These features make the BQ25619ERTWR suitable for applications requiring efficient battery charging and management, such as smartphones, tablets, and other portable electronics. For detailed specifications and pin configuration, consulting the manufacturer's datasheet is recommended.

Manufacturer

The BQ25619ERTWR is manufactured by Texas Instruments (TI), a global semiconductor company. Texas Instruments designs and produces a wide range of electronic components, including integrated circuits and semiconductors, which are used in various applications across multiple industries. The company is known for its innovations in analog and embedded processing technologies.

Application

The BQ25619ERTWR is a highly efficient battery charger IC designed for lithium-ion and lithium-polymer batteries, commonly used in portable electronic devices. Its application areas include smartphones, tablets, wearable electronics, and other battery-operated gadgets. It supports fast charging and features a high level of integration, making it suitable for compact designs. The IC is also used in power banks, handheld medical devices, and wireless audio products, where efficient charging and power management are crucial. Its compact size and advanced power management features make it ideal for devices requiring reliable and efficient power delivery solutions.

Package

The BQ25619ERTWR is a battery charge management IC from Texas Instruments, available in a 12-pin 2x2 mm WQFN (Wafer-Level Quad Flat No-Lead) package type. This compact package is designed for efficient thermal performance and is suitable for space-constrained applications.

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