Specifications
| Attribute | Value |
| 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 |
Overview
Description
The BQ25170DSGR is a highly efficient, compact linear battery charger designed by Texas Instruments, specifically for single-cell Li-Ion, Li-Polymer, LiFePO4, and NiMH batteries. It is ideal for wearable devices, medical applications, and other portable electronics due to its low quiescent current and small footprint.
Key features include its adjustable charge current, precision battery voltage regulation, and dynamic power path management which allows the system to be powered directly from the input supply while charging the battery. The BQ25170DSGR supports input voltages up to 6.6V and provides a programmable charge current through an external resistor, offering flexibility in various applications. Safety features such as thermal regulation, over-voltage protection, and battery temperature monitoring ensure secure and reliable operation.
Additionally, the device includes status indication outputs for charge and fault conditions, simplifying integration into various systems. Overall, the BQ25170DSGR is a versatile and efficient solution for compact and power-sensitive applications requiring reliable battery management.
Key features include its adjustable charge current, precision battery voltage regulation, and dynamic power path management which allows the system to be powered directly from the input supply while charging the battery. The BQ25170DSGR supports input voltages up to 6.6V and provides a programmable charge current through an external resistor, offering flexibility in various applications. Safety features such as thermal regulation, over-voltage protection, and battery temperature monitoring ensure secure and reliable operation.
Additionally, the device includes status indication outputs for charge and fault conditions, simplifying integration into various systems. Overall, the BQ25170DSGR is a versatile and efficient solution for compact and power-sensitive applications requiring reliable battery management.
Equivalent
The BQ25170DSGR is a linear battery charger IC from Texas Instruments, suitable for low-power applications. Equivalent products from other manufacturers might include:
1. Microchip MCP73831: A simple, low-cost linear battery charger for single-cell Li-Ion/Li-Polymer batteries.
2. Analog Devices LTC4079: A versatile, low-current linear charger with similar features.
3. ON Semiconductor NCP186: A compact, linear Li-Ion/Li-Polymer charger IC.
Availability may vary, and exact feature matching should be verified based on specific application needs.
1. Microchip MCP73831: A simple, low-cost linear battery charger for single-cell Li-Ion/Li-Polymer batteries.
2. Analog Devices LTC4079: A versatile, low-current linear charger with similar features.
3. ON Semiconductor NCP186: A compact, linear Li-Ion/Li-Polymer charger IC.
Availability may vary, and exact feature matching should be verified based on specific application needs.
Features
The BQ25170DSGR is a highly efficient, ultra-low quiescent current linear battery charger designed for single-cell lithium-ion or lithium-polymer batteries. It supports a wide input voltage range from 4.5V to 24V, making it suitable for various power sources, including USB and wireless chargers. Key features include a programmable charge current up to 500 mA and a selectable termination current, which optimizes charging based on battery requirements. The device also integrates important safety features like over-voltage protection, battery temperature monitoring, and a thermal regulation loop to prevent overheating. Its low quiescent current extends battery life in low-power applications. Additionally, the BQ25170DSGR offers a power-good output and status indication to facilitate easy monitoring and control. Its small package size and high level of integration make it ideal for space-constrained applications, such as wearables and portable devices.
Pinout
The BQ25170DSGR is a battery charge management IC designed by Texas Instruments. It features an 8-pin configuration. The function of each pin is as follows:
1. VIN: Input voltage supply pin. Connects to the input power source.
2. TS: Temperature sense pin. Used for monitoring the battery temperature.
3. GND: Ground pin. Common return path for the circuit.
4. PG: Power good status pin. Indicates the status of the input power.
5. VBAT: Battery connection pin. Connects directly to the battery.
6. ISET: Charge current programming pin. Sets the desired charge current.
7. CE: Charge enable pin. Used to enable or disable the charging process.
8. STAT: Status indication pin. Displays the charging status through an LED or microcontroller interface.
The BQ25170DSGR is primarily used for charging single-cell Li-Ion or Li-Polymer batteries, providing a highly efficient and compact solution for portable applications.
1. VIN: Input voltage supply pin. Connects to the input power source.
2. TS: Temperature sense pin. Used for monitoring the battery temperature.
3. GND: Ground pin. Common return path for the circuit.
4. PG: Power good status pin. Indicates the status of the input power.
5. VBAT: Battery connection pin. Connects directly to the battery.
6. ISET: Charge current programming pin. Sets the desired charge current.
7. CE: Charge enable pin. Used to enable or disable the charging process.
8. STAT: Status indication pin. Displays the charging status through an LED or microcontroller interface.
The BQ25170DSGR is primarily used for charging single-cell Li-Ion or Li-Polymer batteries, providing a highly efficient and compact solution for portable applications.
Manufacturer
The BQ25170DSGR is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits. Headquartered in Dallas, Texas, TI is one of the largest semiconductor companies in the world, known for its development of analog chips and embedded processors. The company's products are used in a wide range of applications, including industrial, automotive, personal electronics, and communications equipment. TI has a reputation for innovation and has been a significant player in the evolution of the semiconductor industry, focusing on creating technology that helps companies solve their problems and make their products smarter, more efficient, and more integrated.
Application
The BQ25170DSGR is a highly efficient linear battery charger designed for single-cell lithium-ion, lithium-polymer, and lithium-iron-phosphate rechargeable batteries. It is typically used in applications requiring compact and efficient charging solutions with minimal heat generation. Key application areas include wearable devices, fitness trackers, medical devices, IoT gadgets, wireless sensors, and portable electronics. Its ultra-low quiescent current makes it ideal for battery-powered products requiring long standby times. Additionally, its small footprint and integrated features, such as battery temperature monitoring and protection, enhance its suitability for space-constrained applications.
Package
The BQ25170DSGR is a single-cell battery charge management IC from Texas Instruments, available in a 1.6 x 1.6 mm, 6-pin WSON package.
