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DS2715KSWITCH 数据手册 - Maxim Integrated（美信）

制造商:

Maxim Integrated（美信）

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电源管理IC开发工具

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DS2715KSWITCH数据手册

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INTRODUCTION

The DS2715 demonstration board displays all features of the DS2715 NiMH charge controller. The demo board is

populated for either linear mode of operation or switched mode of operation. The default configuration for the linear

mode kit will charge a 3-cell stack at an approximately 0.5A charge rate with a 130 minute timeout. The default

configuration for the switch mode kit will charge a 3-cell stack at an approximately 1.0A charge rate with a 70

minute timeout. See below for how to change the fault settings of the demo board. Refer to the DS2715 IC data

sheet for a complete description of circuit operation.

ORDERING INFORMATION

PART TYPE

DS2715KLINEAR+ EV Kit (Linear Mode)

DS2715KSWITCH+ EV Kit (Switch Mode)

+Denotes lead(Pb)-free and RoHS compliant.

CONNECTIONS

Connect a 3-cell NiMH stack between the B- and B+ pads observing proper polarity. Connect a recommend or

equivalent characteristic thermistor (103AT-2 provided with the kit board) at the THM pads. Make sure the

thermistor has good thermal conductivity to the cell stack. To charge the cells, connect a 4.5V to 16.5V charge

source capable of supplying the desired charge current between CS pad and GND pad. Be careful not to exceed

the power rating of the regulating transistor on the linear board. Maxim recommends using a 6V supply for linear

mode or a 9V supply for switch mode. An optional load to the cell pack should be connected between the LOAD

and GND pads.

DS2715 Evaluation Kit

NiMH Battery Pack

Charge Controlle

19-4579; Rev 10/09

www.maxim-ic.com

Load Circuit

Charge Source

LOAD GND CS

B+ THM THM B-

DS2715KLINEAR+,

DS2715KSWITCH+

Thermistor

+ Cell Stack -

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