DS2712E+T

更新时间： 2024-11-29 09:56:23

品牌	Logo	应用领域
美信 - MAXIM		电池
页数	文件大小	规格书
15页	222K
描述
Loose-Cell NiMH Chargers Detect and Avoid Charging Alkaline Cells

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数据手册

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DS2712E+T 数据手册

19-5826; Rev 4/11

DS2711/DS2712

Loose-Cell NiMH Chargers

GENERAL DESCRIPTION

PIN CONFIGURATION

The DS2711 and DS2712 are ideal for in-system or

stand-alone charging of 1 or 2 AA or AAA NiMH

“loose” cells. Temperature, voltage, and charge time

are monitored to provide proper fast-charging control

algorithms for nickel metal hydride (NiMH) batteries.

Battery tests are included to detect defective or

inappropriate cells such as alkaline primary batteries.

The DS2711/DS2712 support series and parallel

topologies, with independent monitoring and control of

each cell. Charging of NiCd chemistry cells is also

supported.

CC1

CC2

VP2

VP1

LED1

VSS

THM2

THM1

VDD

LED2

CSOUT

VN1

TMR

CTST

DMSEL

VN0

APPLICATIONS

SO (150 mils)

Desktop/Stand-Alone Chargers (AAA/AA)

TSSOP (4.4mm)

Digital Still Cameras

Music Players

Games

PIN DESCRIPTION

NAME

FUNCTION

Toys

CC1

CC2

LED1

Cell 1 Charge-Control Output

Cell 2 Charge-Control Output

Cell 1 Status

Ground Reference and Chip-

Supply Return

FEATURES

V_SS

Charge 1 or 2 NiMH Cells

Detect and Avoid Charging Alkaline Cells

Precharge Deeply Depleted Cells

Fast Charge NiMH with -∆V Termination

Sensitivity of 2mV (typ)

LED2

Cell 2 Status, Mode-Select Input

CSOUT Current-Sense Output

VN1

VN0

DMSEL

CTST

TMR

V_DD

THM1

THM2

Current-Sense + Input

Current-Sense - Input

Display-Mode Select

Cell Test Threshold Set

Charge Timer Set

Chip-Supply Input (4.0V to 5.5V)

Cell 1 Thermistor Input

Cell 2 Thermistor Input

Cell 1 Positive-Terminal Sense

Input

Monitor Voltage, Temperature, and Time for

Safety and Secondary Termination

Regulate Charge Current:

Linear Control (DS2711)

VP1

VP2

Switch-Mode Control (DS2712)

Cell 2 Positive-Terminal Sense

Input

Drive pMOS or pnp-Type Pass Element or

Switch, or an Optocoupler

Compatible with Popular Optocouplers and

Integrated Primary-Side PWM Controllers

Small 16-Pin SO or TSSOP Packages

1 of 15

12 3 4 5 6 7...15

中文翻译

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DS2712EB+T	MAXIM	获取价格	Power Supply Management Circuit,
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DS2712Z/T&R	MAXIM	获取价格	Loose Cell NiMH Chargers
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