- All
- Product Management
- News
- Introduction
- Corporate Outlets
- FAQ
- Corporate Video
- Corporate Brochure
QX4054
Ø Power supply voltage: 4.5V~6.0V Ø Programmable charging current: up to 700mA Ø Preset 4.2V charging voltage accuracy: ±1% Ø Trickle charging threshold voltage: 2.9V Ø Overheat protection: ensures fast and safe charging Ø Soft start: effectively limits inrush current Ø No external MOSFET, sense resistor, and diode required Ø Can be directly charged from the USB port
Category：
- Product Description
-
- Commodity name: QX4054
- 封装: SOT23-5
- 品牌: Quanxin
Ø Power supply voltage: 4.5V~6.0V Ø Programmable charging current: up to 700mA Ø Preset 4.2V charging voltage accuracy: ±1% Ø Trickle charging threshold voltage: 2.9V Ø Overheat protection: ensures fast and safe charging Ø Soft start: effectively limits inrush current Ø No external MOSFET, sense resistor, and diode required Ø Can be directly charged from the USB port
QX4054 Independent Linear Lithium Battery Charger Controller
The QX4054 is a complete single-cell lithium-ion battery constant current constant voltage linear charging controller. It requires minimal external components and is suitable for portable product applications. The QX4054 is specifically designed for USB power charging.
The QX4054 has three charging modes depending on the battery voltage: trickle charging, constant current charging, and constant voltage charging. The trickle charging current is 1/10 of the full charging current; the constant current charging current is the full charging current; the constant voltage charging voltage is fixed at 4.2V. When the battery voltage reaches the full voltage and the charging current drops to 1/10 of the full charging current, the QX4054 will automatically stop charging. The full charging current is set by an external resistor.
The QX4054 also includes sleep mode, shutdown mode, charging current monitoring, overvoltage protection, overtemperature protection, automatic recharging, and operating status indication.
The QX4054 uses a SOT-23-5 package.
Product Message
Please fill in the information accurately, and we will reply to you within 24 hours.
Official Account
E-mail：
Company Address：
Room 819, Dongmei Building, Xiangnan Three District, Minqiang Community, Minzhi Street, Longhua District, Shenzhen
