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NCP5007
Typical LEDs Load Mapping
Since the output power is battery limited (see Figure 5),
one can arrange the LEDs in a variety of different
50 mA
configurations. Powering ten LEDs can be achieved by a
series/parallel combination as depicted in Figure 31.
75 mA
Load
Load
D1
LED
D5
LED
D1
LED
D3
LED
D5
LED
D7
LED
D9
LED
D2
D6
LED
LED
D2
LED
D4
LED
D6
LED
D8
LED
D10
LED
D3
D7
LED
D4
LED
LED
D8
LED
Sense
Resistor
R1
2.7 W
GND
60 mA
Sense
Resistor
R1
3.9 W
Load
D1
LED
D4
LED
D7
LED
D10
LED
D13
LED
GND
D2
LED
D5
LED
D8
LED
D11
LED
D14
LED
Test conditions: V bat = 3.6 V
L out = 22 m H
C out = 1.0 m F
D3
LED
D6
LED
D9
LED
D12
LED
D15
LED
Sense
Resistor
R1
3.3 W
GND
Figure 31. Examples of Possible LED Arrangements
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