1.5A高度集成线性单电池锂离子聚合物充电器集成电路带集成FET充电器定时器CXLB7389手持设备设计交流适配器USB端口线性充电器工作电池分为三个阶段滴流恒流恒定电压

CXLB7389系列是高度集成的单电池手提式锂离子/聚合物电池充电器设备。此充电器设计用于交流适配器或USB端口的类型，能够在低至2.65V的输入电压下工作。CXLB7389作为线性充电器工作，并为电池分为三个阶段：滴流，恒流，和恒定电压。当使用交流适配器时
外部电阻设置充电电流的大小，可通过TDFN10编程至1.5A封装和限流适配器，功耗最低
消散。CXLB7389采用热调节回路进行控制电路板缺电时保持安全运行的充电电流足够散热。可编程充电定时器为终端提供备用安全。CXLB7389如果电池电压低于内部阈值并自动进入移除直流电源时的休眠模式。无外部充电需要感测电阻器或阻断二极管。一个NTC热敏电阻接口用于为电池充电在安全温度范围内。

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

---

 

The CXLB7389 series are highly integrated single cell

Li-Ion/Polymer battery charger IC designed for handheld

devices. This charger is designed to work with various

types of AC adapters or a USB port and capable of

operating with an input voltage as low as 2.65V.

The CXLB7389 operates as a linear charger and charges the

battery in three phases: trickle current, constant current,

and constant voltage. When AC-adapter is applied, an

external resistor sets the magnitude of the charge current,

which may be programmed up to 1.5A with TDFN10

package and a current-limited adapter for lowest power

dissipation.

The CXLB7389 features thermal regulation loop to control

charge current to keep safe operation when PCB lacked of

enough heat-sinking. A programmable charge timer

provides a backup safety for termination. The CXLB7389

automatically re-starts the charge if the battery voltage

falls below an internal threshold and automatically enters

sleep mode when DC supplies are removed. No external

sense resistor or blocking diode is required for charging. A

NTC thermistor interface is used for charging the battery

                       in a safe temperature range.

   产品特点 返回TOP

---

     Very Low Power Dissipation

Accepts Multiple Types of Adapters or USB BUS Power

Integrated Power FET and Current Sensor for Up

to 1.5A Charge Applications

Guaranteed to Operate at 2.65V After Start-Up

Charge Termination by Minimum Current and

Time

Precharge Conditioning With Safety Timer

Reverse Leakage Protection Prevents Battery

Drainage

Charge Current Thermal Regulation

Status Outputs for LED or System Interface

Indicates Charge and Fault Conditions

Optional Battery Temperature Monitoring Before

and During Charge

Automatic Sleep Mode for Low-Power

Consumption

Available in 3mm × 3mm TDFN-10 Package

RoHS Compliant and 100% Lead (Pb)-Free

   应用范围 返回TOP

---

z PDAs, Cell Phones and Smart Phones 

z Portable Instruments. 

z Stand-Alone Charger. 

z USB Bus Powered Charger

   技术规格书（产品PDF) 返回TOP 

---

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！

 

产品封装图 返回TOP

---

电路原理图 返回TOP

 

---

 

相关芯片选择指南 返回TOP                    更多同类产品.....

---

 

Standalone Linear Li-Ion Battery Charger With Thermal Regulation in ThinSOT
Part Number	remark	Packs	Vin (V)	Charge  Current (A)	Charge   Termination	Control   Topology	Temperature Monitoring
CXLB7386	XStandalone Linear   Li-Ion Battery Charger With Thermal Regulation in ThinSOT	1 Cells, Li-Ion	4.35   ~ 6.5	800mA	Minimum   current	Linear   W/FET	No
CXLB7387	Linear   Li-Ion/Polymer Charger IC with Integrated FET and Charger Timer	1 Cells, Li-Ion	4.35   ~ 6	1	Minimum   current & Safety timer	Linear   W/FET	Yes
CXLB7388	Dual Source AC/USB   Li-Ion/Polymer Charger IC for Portable Applications	1 Cells, Li-Ion	4.35   ~ 6 USB	1	Minimum   current & Safety timer	Linear   W/FET	Yes
CXLB7389	Li-ion/Li Polymer   Battery Charger	1 Cells, Li-Ion	4.3   ~ 6.5	2	Minimum   current & Safety timer	Linear   W/FET	Yes
CXLB7390	witch Mode   Li-Ion/Polymer Battery Charger	1/2 Cells, Li-Ion	4.7~20	1~3	Minimum   current & Safety timer	Switching	Yes
CXLB7391	Switch Mode   Li-Ion/Polymer Battery Charger	1/2 Cells, Li-Ion	4.7~20	1~3	Minimum   current & Safety timer	Switching	Yes
CXLB7392	Switch Mode   Li-Ion/Polymer Battery Charger	1 cells, Li-Ion	4.7~20	1~3	Minimum   current & Safety timer	Switching	Yes