L6924D

批量生产
Design Win

具有集成电源开关的锂离子/锂聚合物电池充电器系统

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样片和购买
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产品概述

描述

The L6924D is a fully monolithic battery charger dedicated to single-cell Li-Ion/Polymer battery packs. It is the ideal solution for space-limited applications, like handheld equipment, and digital cameras. It integrates all of the power elements (the power MOSFET, reverse blocking diode and the sense resistor) in a small VFQFPN16 (3 x 3 mm) package. When an external voltage-regulated wall adapter is used, the L6924D 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. The L6924D allows the user to program many parameters, such as pre-charge current, fast-charge current, pre-charge voltage threshold, end-of-charge current threshold, and charge timer. The L6924D 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 L6924D also provides very flexible control of the charge process termination and gas gauge capability, as well as other functions, such as checking for battery presence, and monitoring and protecting the battery from unsafe thermal conditions.
  • 所有功能

    • Fully integrated solution, with a power MOSFET, reverse blocking diode, sense resistor, and thermal protection
    • Ideal for coke and graphite anode single-cell LI-ION packs
    • Both linear and quasi-pulse operation
    • Closed loop thermal control
    • USB BUS-compatible
    • Programmable charge current up to 1 A
    • Programmable pre-charge current
    • Programmable end-of-charge current
    • Programmable pre-charge voltage threshold
    • Programmable charge timer
    • Programmable output voltage at 4.1 V and 4.2 V, with ± 1 % output voltage accuracy
    • (NTC) or (PTC) thermistor interface for battery temperature monitoring and protection
    • Flexible charge process termination
    • Status outputs to drive LEDs or to interface with a host processor
    • Small VFQFPN 16-lead package (3 x 3 mm)

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    • 产品型号
      状态
      描述
      类型
      供应商

      STEVAL-ISA076V1

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      基于L6924D的锂离子/锂聚合物电池充电器演示板,具有集成电源开关

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      STEVAL-ISA076V1

      描述:

      基于L6924D的锂离子/锂聚合物电池充电器演示板,具有集成电源开关

EDA符号、封装和3D模型

STMicroelectronics - L6924D

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。

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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**
L6924D013TR
批量生产
VFQFPN 16 3x3x1.0 工业 Ecopack2

L6924D013TR

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

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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
L6924D013TR 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape and Reel VFQFPN 16 3x3x1.0 -40 125 PHILIPPINES

L6924D013TR 批量生产

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

产品型号:

L6924D013TR

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Country of Origin:

PHILIPPINES

无法联系到经销商,请联系我们的销售办事处
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(*) 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