BQ25185DLHR

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BQ25185DLHR

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1-CELL, 1-A STAND-ALONE LINEAR B

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  • メーカー品番 #BQ25185DLHR

  • データシート BQ25185DLHR DataSheet

  • 在庫状況21959

365 日間品質保証

7*24 日間の品質保証

90-時間単位のサービス保証

1日間のアフターサービス保証

仕様

属性
PartStatus Active
BatteryChemistry Multi-Chemistry
NumberofCells 1
Current-Charging Constant - Programmable
ProgrammableFeatures Current, Timer, Voltage
FaultProtection Over Current, Over Temperature, Over-Under Voltage, Short Circuit
ChargeCurrent-Max 1A
BatteryPackVoltage 3.6V, 3.65V, 4.02V, 4.1V, 4.2V, 4.35V, 4.4V
Voltage-Supply(Max) 18V
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 10-WFDFN Exposed Pad
SupplierDevicePackage 10-WSON (2.2x2)

概要

Description

The BQ25185DLHR is a highly efficient, single-cell battery charger from Texas Instruments, designed for portable and wearable applications. It supports USB and wireless charging inputs, and its compact design integrates a linear charger with power path management, making it suitable for space-constrained devices. The BQ25185DLHR provides a programmable charge current up to 500 mA and offers a low quiescent current for extended battery life during standby. It includes an I2C interface for flexible configuration and monitoring, as well as various safety features such as over-voltage, over-current, and thermal protection. The device supports battery voltage regulation and pre-charge/discharge capabilities, ensuring optimal performance and longevity of the battery. Other features include automatic power source detection and seamless transition between power sources. This makes the BQ25185DLHR ideal for modern electronics that require efficient power management and prolonged battery life.

Equivalent

The BQ25185DLHR is a battery charger and power management IC from Texas Instruments. Equivalent products include:
1. Microchip MCP73871: A Li-Ion/Li-Polymer charger with power-path management.
2. Analog Devices LTC4079: Offers similar battery charging capabilities.
3. ON Semiconductor NCP1851: A battery charger with integrated power path management.
These alternatives offer similar functionalities like battery charging and power management for low-power applications. Make sure to verify the specific requirements like voltage, current, and features.

Features

The BQ25185DLHR is a power management integrated circuit (PMIC) designed for efficient battery charging and management. Key features include:
1. Input Voltage Range: It supports an input voltage range from 3.9V to 18V.
2. Battery Charging: Offers linear charging for single-cell Li-Ion and Li-Polymer batteries.
3. Programmable Features: Allows programmable charge current, voltage, and termination settings through I2C interface.
4. Low Quiescent Current: Designed for low power consumption to extend battery life, with quiescent current as low as 700nA.
5. Integrated LDO: Includes a 300mA Low-Dropout Regulator (LDO) to supply system power.
6. Protection Features: Incorporates safety mechanisms like over-voltage, over-current, and thermal protection.
7. Power Path Management: Supports dynamic power path management for simultaneous charging and system operation.
8. Battery Monitoring: Provides real-time battery monitoring and fault indication capabilities.
9. Package: Available in a small, compact package, suitable for space-constrained applications.
10. Applications: Ideal for wearable devices, portable electronics, and other battery-powered applications.
These features make the BQ25185DLHR a versatile and efficient choice for battery management in various electronic devices.

Pinout

The BQ25185DLHR is a battery management IC from Texas Instruments, designed for low-power wearable applications. It comes in a 12-pin package, specifically the DSBGA (Die-Size Ball Grid Array) package.
The pin functions are typically as follows:
1. VIN: Input power supply.
2. SYS: System output.
3. BAT: Battery connection.
4. NCHG: Charge status indicator (open-drain).
5. VBUS: USB or adapter power input.
6. TS: Temperature sense for battery.
7. I2C SDA: I2C data line.
8. I2C SCL: I2C clock line.
9. CE: Chip enable.
10. PG: Power good indicator (open-drain).
11. GND: Ground connection.
12. INT: Interrupt (open-drain).
These pins support functions such as battery charging, system power management, and communication with a host processor via I2C. The device is designed to support single-cell lithium-ion or lithium-polymer batteries and features various safety and power management features, making it suitable for compact and energy-efficient applications.

Manufacturer

The BQ25185DLHR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide array of electronic components and integrated circuits. They are renowned for their innovation in developing technologies that drive advancements in areas such as analog electronics, embedded processing, and digital signal processing. TI serves diverse industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. Their products are integral to various applications, including power management, sensing, and connectivity solutions.

Application

The BQ25185DLHR is a highly efficient battery charge management IC designed for small, portable devices. Key application areas include:
1. Wearable Devices: Ideal for smartwatches and fitness trackers due to its compact size and low power consumption.
2. Medical Devices: Used in portable medical equipment like hearing aids and health monitors.
3. IoT Devices: Suitable for powering small, low-power Internet of Things devices.
4. Consumer Electronics: Applied in wireless earbuds and other compact gadgets.
5. Rechargeable Accessories: Utilized in charging cases and portable power packs for efficient battery management.
The IC is valued for its small footprint, integrated power path management, and efficient charging capabilities.

Package

The BQ25185DLHR is packaged in a 12-pin WSON (Wafer Level Small Outline No-lead) package. It is compact, providing efficient space utilization for battery management solutions.

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