DS2720BU

更新时间： 2024-11-08 22:40:35

品牌	Logo	应用领域
达拉斯 - DALLAS		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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DS2720BU 数据手册

DS2720

Efficient, Addressable Single-Cell

Rechargeable Lithium Protection IC

www.maxim-ic.com

FEATURES

PIN CONFIGURATION

C Rechargeable Lithium-Ion (Li+) Safety

Circuit

PLS

V_DD

- Overvoltage Protection

- Overcurrent/Short-Circuit Protection

- Undervoltage Protection

V_SS

- 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

C 8-Pin ꢀꢁSOP Package

DQ - Data Input/Output

V_SS- Device Ground

C Low Power Consumption:

- Active Current: 12.5ꢁA typ

V_DD- 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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与DS2720BU相关器件

型号	品牌	获取价格	描述	数据表
DS2720BU/T&R	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, MICRO, SOP-8
DS2720BU/T&R	MAXIM	获取价格	Efficient, Addressable Single-Cell Rechargeable Lithium Protection IC
DS2720BU/TR	DALLAS	获取价格	Power Management Circuit, PDSO8,
DS2720BU+	MAXIM	获取价格	Efficient, Addressable Single-Cell Rechargeable Lithium Protection IC
DS2720BU+T&R	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, LEAD FREE, MICRO, SOP-8
DS2720BU+T&R	MAXIM	获取价格	Efficient, Addressable Single-Cell Rechargeable Lithium Protection IC
DS2720CU	DALLAS	获取价格	Efficient, Addressable Single-Cell Rechargeable Lithium Protection IC
DS2720CU	MAXIM	获取价格	Efficient, Addressable Single-Cell Rechargeable Lithium Protection IC
DS2720CU/T&R	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, MICRO, SOP-8
DS2720CU/T&R	MAXIM	获取价格	Efficient, Addressable Single-Cell Rechargeable Lithium Protection IC

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