L6924U

批量生产
Design Win

具有集成电源开关的USB兼容电池充电器系统

下载数据手册 Order Direct
概述
样片和购买
解决方案
文件
CAD资源
工具与软件
质量与可靠性
开始
Partner products
Sales Briefcase

产品概述

描述

The L6924U is a fully monolithic battery charger that safely charges single-cell Li-Ion/Polymer battery from either a USB power source or an AC adapter. In USB mode, the L6924U supports both low-power and high-power mode. Alternatively the device can charge from an AC wall adapter. The ideal solution for space-limited portable products integrates the power MOSFET, reverse blocking diode, sense resistor and thermal protection into a compact VFQFPN16 package. When an external voltage regulated adapter or USB port is used, the L6924U works in linear mode, and charges the battery in a constant current constant voltage (CC/CV) profile. Moreover, when a current-limited adapter is used, the device can operate in quasi-pulse mode, dramatically reducing the power dissipation. Regardless of the charging approach, a closed-loop thermal control avoids device overheating. The device has an operating input voltage ranging from 2.5 V to 12 V and it allows the user to program many parameters, such as fast-charge current, end-of-charge current threshold, and charge timer. The L6924U offers two open collector outputs for diagnostic purposes, which can be used to either drive two external LEDs or communicate with a host microcontroller. Finally, the L6924U also provides other features like gas gauge function, checks for battery presence, and monitors and protects the battery from unsafe thermal conditions.
  • 所有功能

    • Fully integrated solution, with power MOSFET, reverse blocking diode, sense resistor, and thermal protection
    • Charges single-cell Li-Ion batteries from selectable AC adapter or USB input
    • Programmable charge current up to 1 A in AC adapter mode
    • Programmable charging current in USB mode for both high-power and low-power inputs
    • 4.2 V output voltage with ± 1 % accuracy
    • Linear or quasi-pulse operating mode
    • Closed-loop thermal control
    • Programmable end-of-charge current
    • Programmable charge timer
    • (NTC) or (PTC) thermistor interface for battery temperature monitoring and protection
    • Status outputs to drive LEDs or to interface with a host processor
    • Small VFQFPN 16-lead package (3 x 3 mm)

电路原理图

EDA符号、封装和3D模型

STMicroelectronics - L6924U

为您的应用下载所有EDA符号、封装和3D模型,加快您的设计速度。您可以从大量CAD格式中进行选择,以匹配您的设计工具链。

Symbols

符号

Footprints

封装

3D model

3D模型

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
L6924UTR
批量生产
VFQFPN 16 3x3x1.0 工业 Ecopack2

L6924UTR

Package:

VFQFPN 16 3x3x1.0

Material Declaration**:

Marketing Status

批量生产

Package

VFQFPN 16 3x3x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

Swipe or click the button to explore more details Don't show this again
产品型号
Order from distributors
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
L6924UTR Available at 2 distributors

经销商的可用性L6924UTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 8000 1 Buy from Distributor
MOUSER WORLDWIDE 3589 1 Buy from Distributor

代理商库存报告日期: 2022-08-14

代理商名称

DIGIKEY

库存

8000

Min.Order

1

地区

WORLDWIDE Buy from Distributor

MOUSER

库存

3589

Min.Order

1

地区

WORLDWIDE Buy from Distributor

代理商库存报告日期: 2022-08-14

批量生产
EAR99 NEC Tape and Reel VFQFPN 16 3x3x1.0 -40 85 PHILIPPINES

L6924UTR 批量生产

封装:
VFQFPN 16 3x3x1.0
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

L6924UTR

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Country of Origin:

PHILIPPINES

经销商的可用性L6924UTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 8000 1 Buy from Distributor
MOUSER WORLDWIDE 3589 1 Buy from Distributor

代理商库存报告日期: 2022-08-14

代理商名称

DIGIKEY

库存

8000

Min.Order

1

地区

WORLDWIDE Buy from Distributor

MOUSER

库存

3589

Min.Order

1

地区

WORLDWIDE Buy from Distributor

代理商库存报告日期: 2022-08-14

Swipe or click the button to explore more details Don't show this again

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商