Battery charger system with integrated power switch for Li-Ion/Li-Polymer

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  • 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.

    主要特性

    • 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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L6924D013TR VFQFPN 16 3x3x1.0 Tape And Reel
批量生产
0.75 10000 EAR99 PHILIPPINES 查看供货情况

Distributor availability ofL6924D013TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 278 1 Order Now
ARROW EUROPE 28499 0 Order Now
ARROW AMERICA 152000 4000 Order Now
MOUSER WORLDWIDE 20769 1 Order Now
Farnell Element14 EUROPE 972 1 Order Now

代理商库存报告日期: 2019-10-13

代理商名称

DIGIKEY

库存

278

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

28499

Min.Order

0

地区

EUROPE Order Now

ARROW

库存

152000

Min.Order

4000

地区

AMERICA Order Now

MOUSER

库存

20769

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

972

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-13

立即购买

L6924D013TR

封装

VFQFPN 16 3x3x1.0

包装类型

Tape And Reel

单价(US$)

0.75*

Distributor availability ofL6924D013TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 278 1 Order Now
ARROW EUROPE 28499 0 Order Now
ARROW AMERICA 152000 4000 Order Now
MOUSER WORLDWIDE 20769 1 Order Now
Farnell Element14 EUROPE 972 1 Order Now

代理商库存报告日期: 2019-10-13

代理商名称

DIGIKEY

库存

278

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

28499

Min.Order

0

地区

EUROPE Order Now

ARROW

库存

152000

Min.Order

4000

地区

AMERICA Order Now

MOUSER

库存

20769

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

972

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-13

供货状态

批量生产

单价(US$)

0.75

数量

10000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 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

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产品型号 供货状态 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**:

PDF XML

Marketing Status

批量生产

Package

VFQFPN 16 3x3x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.