ZXSC310
Maximum battery life solution
(Notes)
To ensure optimum efficiency, and therefore
maximum battery life, the LED is supplied with a pulsed
current. Maximum efficiency is ensured with the
removal of rectifier losses experienced in the
maximum brightness solution.
Materials list
Ref
Value
U1
N/A
Q1
N/A
R1
330m⍀
L1
100H(8)
Part Number
ZXSC310E5
FMMT617
Generic
Manufacturer
Zetex Semiconductors
Zetex Semiconductors
Various
Comments
Single cell converter, SOT23-5
Low VCE(sat) NPN, SOT23
0805 Size
Surface mount inductor
(8) See Application section.
SEMICONDUCTORS
ISSUE 3 - SEPTEMBER 2007
8