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DS2720CU

更新时间： 2024-09-15 22:40:35
品牌 Logo 应用领域
达拉斯 - DALLAS 电源电路电源管理电路光电二极管
页数 文件大小 规格书
21页 252K
描述
Efficient, Addressable Single-Cell Rechargeable Lithium Protection IC

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中文翻译

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DS2720CU 技术参数

是否Rohs认证： 不符合生命周期：Transferred
Reach Compliance Code：unknown风险等级：5.78
Is Samacsys：NJESD-30 代码：R-PDSO-G8
JESD-609代码：e0端子数量：8
最高工作温度：70 °C最低工作温度：-20 °C
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装等效代码：TSSOP8,.19封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH电源：3/5 V
认证状态：Not Qualified子类别：Power Management Circuits
最大供电电流 (Isup)：0.025 mA表面贴装：YES
温度等级：COMMERCIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：0.635 mm
端子位置：DUALBase Number Matches：1

DS2720CU 数据手册

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DS2720  
Efficient, Addressable Single-Cell  
Rechargeable Lithium Protection IC  
www.maxim-ic.com  
FEATURES  
PIN CONFIGURATION  
C Rechargeable Lithium-Ion (Li+) Safety  
Circuit  
PLS  
PS  
1
2
3
4
8
7
6
5
CP  
DC  
CC  
VDD  
- Overvoltage Protection  
- Overcurrent/Short-Circuit Protection  
- Undervoltage Protection  
DQ  
VSS  
- Overtemperature Protection  
C Controls High-Side N-Channel Power  
MOSFETs Driven from 9V Charge Pump  
C System Power Management and Control  
Feature Support  
DS2720U  
ꢀSOP  
C Eight Bytes of Lockable EEPROM  
C Dallas 1-Wire® Interface with Unique 64-Bit  
Device Address  
PIN DESCRIPTION  
PLS - Battery-Pack Positive Terminal Input  
- Power-Switch Sense Input  
PS  
C 8-Pin ꢀꢁSOP Package  
DQ - Data Input/Output  
VSS - Device Ground  
C Low Power Consumption:  
- Active Current: 12.5ꢁA typ  
VDD - Power-Supply Input  
CP - Reservoir Capacitor  
CC - Charge Control Output  
DC - Discharge Control Output  
- Sleep Current:  
1.5ꢁA typ  
DESCRIPTION  
The DS2720 single-cell rechargeable Li+ protection IC provides electronic safety functions required for  
rechargeable Li+ applications including protecting the battery during charge, protection of the circuit  
from damage during periods of excess current flow and maximization of battery life by limiting the level  
of cell depletion. Protection is facilitated by electronically disconnecting the charge and discharge  
conduction path with switching devices such as low-cost N-channel power MOSFETs.  
Since the DS2720 provides high-side drive to external N-channel protection MOSFETs from a 9V charge  
pump, superior on-resistance performance results compared to common low-side protector circuits using  
the same FETs. The FET on-resistance actually decreases as the battery discharges.  
Adding to the uniqueness of the DS2720 is the ability of the system to control the FETs from either the  
data interface or a dedicated input thereby eliminating the power-switch control redundancy of  
rechargeable Li+ battery systems.  
Through its 1-Wire interface, the DS2720 gives the host system read/write access to status and control  
registers, instrumentation registers, and general-purpose data storage. Each device has a factory-  
programmed 64-bit net address that allows it to be individually addressed by the host system.  
1-Wire is a registered trademark of Dallas Semiconductor.  
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