Datasheet > HKT4056

HKT4056

更新时间： 2024-10-15 18:09:51

品牌	Logo	应用领域
合科泰 - HOTTECH		/
页数	文件大小	规格书
15页	3737K
描述
ESOP-8

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数据手册

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HKT4056 数据手册

HKT4056E

Description

HKT4056E is a complete CC/CV linear charger for single cell lithium-ion batteries. It is specifically designed

to work within USB power Specifications.No external sense resistor is needed and no blocking diode is

required due to the internal P-MOSFET architecture. Thermal feedback regulates the charge current to

limit the die temperature during high power operation or high ambient temperature .The charge voltage is

fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The

HKT4056E automatically terminates the charge cycle when the charge current drops to 1/10th the

programmed value after the final float voltage is reached.When the input supply (wall adapter or USB

supply) is removed the HKT4056E automatically enters a low current state dropping the battery drain

current to less than 1μA. The HKT4056E can be put into shutdown mode reducing the supply current to 35μ

A.Other features include Battery temperature monitor, under-voltage lockout, automatic recharge and two

status pins to indicate charge and charge termination

Features

• Programmable Charge Current Up to 1A

• Battery Reverse Polarity Voltage Protection

• Preset 4.2V charge voltage with

• Charge Status Output Pin

±1% accuracy

Two Status Indication for Charge status

• No MOSFET,Sense Resistor or

• C/10 Charge Termination

blocking Diode Required

• 35µA Supply Current in Shutdown

• 2.9V Trickle Charge Threshold

• Soft-Start Limits Inrush Current

• Constant-Current/Constant-Voltage

operation with Thermal Regulation to

maximize Charge Rate Without Risk

of overheating

• Monitor output charge current

• Output with protection against anti-irrigation

• Battery Temperature Sensing

• Charges Single Cell Li-Ion Batteries Directly

from USB port

• Available Package：ESOP-8

• Automatic recharge

• RoHS Compliant and Lead (Pb) Free

Application

• Cellular Telephones

• Charging Docks and Cradles

• Bluetooth Application

• Wearable Application

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©GUANGDONG HOTTECH INDUSTRIAL CO.,LTD

E-mail:hkt@heketai.com

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