Datasheet > SI9731DQ-E3

SI9731DQ-E3

更新时间： 2024-02-10 13:09:12

品牌	Logo	应用领域
威世 - VISHAY		光电二极管
页数	文件大小	规格书
10页	85K
描述
Power Management Circuit, PDSO16

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SI9731DQ-E3 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	TSSOP, TSSOP16,.25	Reach Compliance Code：	unknown
风险等级：	5.72	Is Samacsys：	N
JESD-30 代码：	R-PDSO-G16	端子数量：	16
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装等效代码：	TSSOP16,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	认证状态：	Not Qualified
子类别：	Power Management Circuits	表面贴装：	YES
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子节距：	0.635 mm	端子位置：	DUAL
Base Number Matches：	1

SI9731DQ-E3 数据手册

Si9731

Vishay Siliconix

mP Controlled Battery Charger

For 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries

FEATURES

D Pulse Charges 1-Cell Li-ion or 1-Cell to 3-Cell

D Complete Isolation from Battery to External Power

NiCd/NiMH Batteries

Supply In Shutdown

D Integrated MOSFETs With Bi-directional Reverse

D Thermal Shutdown

Current Blocking in “OFF” Mode

D Minimum Number 0f External Components

D PWM Controlled Fast Charging Mode

D ESD Protection to 4 kV on Charger Input and Battery

D Low Current Trickle Charge Mode

D Pin Selectable 4.1 V or 4.2 V Charge Termination for

Li-ion

Output

D TSSOP-16 Package (1.2-mm maximum height)

D Constant Voltage (CV) Termination For Li-ion

D Input Over-Voltage Detector with Automatic Shutdown

D External Shutdown

APPLICATIONS

D Cellular Phone Battery Charger

D Personal Digital Assistants

D Under 1-mA Reverse Battery Leakage Current In

Shutdown

DESCRIPTION

Si9731 is a chemistry independent battery charger designed

to pulse charge 1-cell to 3-cell NiCd/NiMH or 1-cell Li-ion

batteries. Battery charging is accomplished under direct

control from the system processor. An internal low r_DS(on)

MOSFET can be pulsed on and off at varying duty cycle by the

system processor to pulse charge the battery at high charge

current while minimizing heat dissipation. Provision is also

made to trickle charge a discharged battery until the battery is

charged to a high enough voltage to wake up the processor so

that the processor can take control of the charging process.

For charging Li-ion batteries, Si9731 includes a precision

voltage reference and an error amplifier for constant voltage

(CV) charge mode.

FUNCTIONAL BLOCK DIAGRAM

BAT

CHARGER

ON/OFF

Fast

Charge

Trickle

Charge

TRICKLECHARGEENABLE

MODE

Charge Control

4.1/4.2 V_TAP

FAST CHARGE

GND

Document Number: 71321

S-02258—Rev. A, 28-Sep-00

www.vishay.com

12 3 4 5 6 7...10

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与SI9731DQ-E3相关器件

型号	品牌	获取价格	描述	数据表
SI9731DQ-T1	VISHAY	获取价格	Power Management Circuit
SI9750	VISHAY	获取价格	In-Rush Current Limit MOSFET Driver
SI9750_05	VISHAY	获取价格	In-Rush Current Limit MOSFET Driver
SI9750CY	VISHAY	获取价格	In-Rush Current Limit MOSFET Driver
SI9750CY-T1	VISHAY	获取价格	In-Rush Current Limit MOSFET Driver
SI9750CY-T1-E3	VISHAY	获取价格	In-Rush Current Limit MOSFET Driver
SI9801DY	VISHAY	获取价格	N-/P-Channel, Reduced Qg, Fast Switching Half-Bridge
SI9801DY-E3	VISHAY	获取价格	Transistor
SI9802DY	VISHAY	获取价格	Dual N-Channel Reduced Qg, Fast Switching MOSFET
SI9802DY-E3	VISHAY	获取价格	Power Field-Effect Transistor, N-Channel, Metal-oxide Semiconductor FET

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