BQ25040 - 1.2A, Single-Input, Single Cell Li-Ion BATTERY CHARGER with 50mA LDO and 2.3A Te

BQ25040是TI德州仪器公司的一款电池充电器IC产品，BQ25040是1.2A, Single-Input, Single Cell Li-Ion BATTERY CHARGER with 50mA LDO and 2.3A Te，本站介绍了BQ25040的封装应用图解、特点和优点、功能等，并给出了与BQ25040相关的TI元器件型号供参考。

BQ25040 - 1.2A, Single-Input, Single Cell Li-Ion BATTERY CHARGER with 50mA LDO and 2.3A Te - 电池充电器IC - 电池管理产品 - 德州仪器

产品描述

The bq25040 is an integrated Li-ion linear battery charger targeted at space-limited portable applications. It operates from either a USB port or AC adapter and charges a single cell Li-Ion battery with up to 1.1A of charge current.

The bq25040 has a single power output that charges the battery. A system load can be placed in parallel with the battery. The charge current is programmed using the ISET and EN/SET inputs. The input current limit is programmable to USB100, USB500 or a user programmed current limit up to 1.1A. Additionally, a 4.9V ±3% 50mA LDO is integrated into the IC for supplying low power external circuitry. The single-input interface (EN/SET) is used to select the charge current and to place the bq25040 into Production Test Mode. In Production Test Mode, the bq25040 operates as a linear regulator without a battery connected, where the output is regulated at 4.2V and supplies up to 2.3A to calibrate GSM transceivers.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has accuracy current and voltage regulation loops, charge status display, and charge termination.

产品特性

30V Input Rating, with Overvoltage Protection (OVP)
Input Voltage Dynamic Power Management Feature
50mA Integrated Low Dropout Linear Regulator (LDO)
1% Charge Voltage Regulation Accuracy
10% Charge Current Accuracy
Single-Input Interface Selects USB 100mA, 500mA or User-Programmable Maximum Input Current Limit
4.2V at 2.3A Production Test Mode
Thermal Regulation and Thermal Shutdown Protection for Output Current Control
Soft-Start Feature to Reduce Inrush Current
Status Indication - Power Good and Charging/Done
Available in Small 2mm × 3mm DFN-10 Package
APPLICATIONS
- Mobile Phones
- Smart Phones
- Portable Media Players
- Portable Navigation Devices
- Low-Power Handheld Devices

下面可能是您感兴趣的TI德州仪器公司电池充电器IC元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购