DS2712K Maxim Integrated, DS2712K Datasheet

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DS2712K

Manufacturer Part Number
DS2712K
Description
Power Management IC Development Tools
Manufacturer
Maxim Integrated
Series
DS2711, DS2712r
Datasheet
1.DS2712K.pdf (5 pages)
Board Layout
The DS2711/12K board is designed to allow a DS2711 or DS2712 to be configured into any possible charge configuration.
The board supports single cell, dual cell series, and dual cell parallel charging of AA or AAA NiMH cells. The board also
allows the user to select between on-board regulation of the charge source, on board regulation with a separate DS2711/12
power supply, or external regulation. Figures 1 and 2 show the board layout of jumper and battery socket locations.
LED Flash Selection – Jumper J8
The DS2711/12 is capable of three different LED flash configurations. Use jumper J8 to select between the different flash
modes for charge, maintenance, and fault as shown in Figure 3. The board must be power cycled after jumper settings are
changed for the changes to take effect.
www.maxim-ic.com
A
Figure 1. Terminal header and jumper
T1
J7
locations on topside of board.
A
B
J1
A
J3
B
J5
B
A
100% duty cycle during charge
0% duty cycle during maintenance
50% duty cycle during fault
80% duty cycle during charge
100% duty cycle during maintenance
50% duty cycle during fault
100% duty cycle during charge
80% duty cycle during maintenance
50% duty cycle during fault
J8
A
Figure 3. LED Flash Mode Selection
B
J4
A
A
www.pdffactory.com
B
J9
J6
B
B
1 of 4
+
Figure 2. Battery socket locations on
A
A
A
J8
J8
J8
+
bottom side of board.
B
B
B
NiMH Charger Kit Board
+
+
DS2711/12K
+
+
062805

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DS2712K Summary of contents

Page 1

Board Layout The DS2711/12K board is designed to allow a DS2711 or DS2712 to be configured into any possible charge configuration. The board supports single cell, dual cell series, and dual cell parallel charging AAA NiMH ...

Page 2

Power Input Selection – Jumpers J2, J3, J5, J7, and connection terminal Figure 4 shows the jumper settings and terminal connections for the three different modes of regulation. The board must be power cycled after jumper settings are changed for ...

Page 3

Charge Configuration – Jumpers J1, J4, J6, J9, and all battery sockets The DS2711/12K board will charge AA or AAA cells in single cell, two cell series, and two cell parallel configurations. Figure 5 shows the jumper settings and cell ...

Page 4

Charge Rate – Resistors R14 and R15 Resistor R14 sets the charge rate for all AA sockets and the combined resistance of R14+R15 sets the charge rate for all AAA sockets. The formulas are as follows: DS2711 AA Charge Rate ...

Page 5

PDF created with pdfFactory trial version www.pdffactory.com PIN TERMINAL 1 Populate only for linear mode DS2711 Q1 FCX718 R22 4.7V 47uF Ceramic or Polymer ...

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