NCP5005 ON Semiconductor, NCP5005 Datasheet - Page 20

• Manufacturer Part Number: NCP5005
• Description: Compact Backlight LED Boost Driver
• Manufacturer: ON Semiconductor

Typical LEDs Load Mapping
Figure 5), one shall arrange the LED to cope with a specific
need. In particular, since the power cannot extend 600 mW
Since the output power is voltage battery limited (see
Load
Resistor
50 mA
Test conditions: V
Sense
LED
LED
LED
LED
D3
D4
D1
D2
GND
L
C
R1
3.9 W
out
bat
out
Figure 36. Examples of Possible LED Arrangements
= 22 mH
= 3.6 V
= 1.0 mF
LED
LED
LED
LED
D7
D8
D5
D6
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Load
Load
NCP5005
20
60 mA
75 mA
under realistic battery supply, powering ten LED can be
achieved by a series/parallel combination as depicted in
Figure 36.
LED
LED
LED
LED
LED
D1
D2
D1
D2
D3
Resistor
Resistor
Sense
Sense
LED
LED
LED
LED
LED
D3
D4
D4
D5
D6
GND
GND
R1
2.7 W
R1
3.3 W
LED
LED
LED
LED
LED
D5
D6
D7
D8
D9
LED
LED
LED
D10
D11
D12
LED
LED
D7
D8
LED
LED
LED
LED
LED
D10
D13
D14
D15
D9