Datasheet

DS2715: NiMH Battery Pack Charge Controller
Figure 7. Switching Circuit with Example Layout
C
1
Q1
L1
D1
D2
R
1
C2 C3
Charge
Source
Side
-
+
-
+
Battery
Side
Control
Backside
Ground Plane
Charge
Source
Side
-
+
Control
+
-
Battery
Side
D1
D2
Q1
L1
C3
C1
C2
R1
Loop1 Loop2
Loop Areas
Minimized
Another important layout detail is the connection of the sense resistor. Proper Kelvin connection layout should be
used to ensure the signal quality viewed by the sensing circuit inside the DS2715 is adequate. Figure 8 shows a
recommended connection of the sense lines to the resistor footprint.
Figure 8. Sense Resistor Connection Layout
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
16 SO — 21-0041