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BQ24155RGYR

Name: BQ24155RGYR
Rating: 4.7 (12 reviews)

IC BATT CHG LI-ION 1CELL 14VQFN

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製造商。部分 #BQ24155RGYR
包 VQFN (RGY)-14
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規格

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
BatteryChemistry	Lithium Ion/Polymer
NumberofCells	1
Current-Charging	Constant - Programmable
ProgrammableFeatures	Current, Timer, Voltage
FaultProtection	Over Temperature, Over Voltage
ChargeCurrent-Max	1.25A
BatteryPackVoltage	4.44V (Max)
Voltage-Supply(Max)	6V
Interface	I²C
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	14-VFQFN Exposed Pad

概述

Description

BQ24155RGYR is a Texas Instruments single‑cell Li‑ion battery charger with integrated PowerPath management. It accepts USB or 5V external input and charges a one‑cell Li‑ion/polymer battery using a CC/CV charging profile, while optionally powering the system from the input during charging. Key features include programmable charging current, battery presence/monitoring, end‑of‑charge termination, and battery‑temperature sensing for safety. It provides comprehensive protection: input overvoltage, battery overcurrent, thermal regulation, and short‑circuit protection. An I2C/SMBus‑compatible interface is available on some configurations for monitoring and configuration. The RGYR suffix indicates a RoHS‑compliant package (24‑pin VQFN). Typical applications include portable devices and consumer electronics that require efficient, safe one‑cell battery charging with system power‑path behavior. For details, consult the TI datasheet and reference designs.

Package

BQ24155RGYR is in a VQFN-16 package (3x3 mm), leadless with an exposed pad.

Pinout

- Pin count: 16 pins (16-pin package, RGYR RoHS variant)
- Function: Single-cell Li-ion/Li-polymer battery charger with integrated power-path/system load management. It accepts USB/DC input, charges the battery, and powers the system from input when available; provides status outputs and programmable charging via its control interface.

Manufacturer

- Manufacturer: Texas Instruments Incorporated (TI).
- What kind of company: An American multinational semiconductor company that designs and manufactures analog and embedded processing integrated circuits for a wide range of industries.

Application

Applications areas for BQ24155RGYR:
- Mobile/portable devices (smartphones, tablets, wearables)
- USB-powered peripherals and power banks
- IoT sensors and handheld equipment
- Cameras and handheld medical devices
- Docking stations and charging accessories
- Embedded systems needing Li-ion battery charging with power-path management

Equivalent

There isn’t an exact one-for-one equivalent. Closest cross-references:
- TI equivalents: BQ24150, BQ24160 (same BQ2415x family, different current ratings).
- Non-TI equivalents: Analog Devices LTC4054/LTC4055; Microchip MCP73871 (Power-Path Li‑ion charger) and MCP73831 (single-cell charger).
Note: choose based on required charge current, power-path features, and USB compatibility.