LM3503SQX-44 National Semiconductor Corporation, LM3503SQX-44 Datasheet - Page 9

• Manufacturer Part Number: LM3503SQX-44
• Description: Dual-display Constant Current Led Driver With Analog Brightness Control
• Manufacturer: National Semiconductor Corporation

Typical Performance Characteristics
(See Typical Application Circuit : L=DO1608C-223 and
D=B150-13. Efficiency: η = P
/ P
= [(V
– V
) * I
] / [V
* I
]. T
= +25˚C, unless otherwise stated.)
OUT
IN
OUT
Fb
OUT
IN
IN
A
I
(Non-Switching) vs V
Switching Frequency vs Temperature
Q
IN
20128606
20128607
I
(Switching) vs V
I
(Switching) vs Temperature
Q
IN
Q
20128608
20128609
10 LED Efficiency vs LED Current
8 LED Efficiency vs LED Current
20128611
20128610
9
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