DS2715KLINEAR Maxim Integrated, DS2715KLINEAR Datasheet
DS2715KLINEAR
Manufacturer Part Number
DS2715KLINEAR
Description
Power Management IC Development Tools
Manufacturer
Maxim Integrated
Series
DS2715r
Datasheet
1.DS2715KSWITCH.pdf
(3 pages)
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
+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.
www.maxim-ic.com
19-4579; Rev 10/09
DS2715KLINEAR+
DS2715KSWITCH+
PART
GND
Charge Source
Load Circuit
LOAD
B+
+ Cell Stack -
DS2715KLINEAR+,
DS2715KSWITCH+
Thermistor
1 of 3
B-
THM
CS
THM
DS2715 Evaluation Kit
EV Kit (Switch Mode)
EV Kit (Linear Mode)
NiMH Battery Pack
Charge Controller
TYPE
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DS2715KLINEAR Summary of contents
Page 1
... Maxim recommends using a 6V supply for linear mode supply for switch mode. An optional load to the cell pack should be connected between the LOAD and GND pads. Charge Source Load Circuit GND LOAD CS DS2715KLINEAR+, DS2715KSWITCH THM + Cell Stack - Thermistor ...
Page 2
CELL STACK SIZE ADJUSTMENT R4 and R11 form a voltage divider such that the voltage of a single cell is present on the Vbatt pin. This is required for proper operation of the kit. Adjust R4 as follows for the ...
Page 3
... REVISION HISTORY REVISION DATE Changed the part number from DS2715K to DS2715KLINEAR+ and 10/09 DS2715KSWITCH+; added the schematic. DESCRIPTION PAGES CHANGED 1, 2 ...