AMG-LM302 Datasheet, PDF (19/23 Pages) alpha microelectronics gmbh – Ballast Controller for Metal Halide Lamps

AMG-LM302
Ballast Controller for Metal Halide Lamps
11. Application
The chip set AMG-LM302 and AMG-DF102 are suitable to drive
11.1. Example Application Circuit(s)
Figure 2: Example Application Circuit
11.2. Calculating PFC Parameters
1) Startup resistor (6.2-G.2):
2) Input phase voltage divider (6.2-PFC-5):
3) VS voltage limitation (6.1-1):
4) Output phase voltage divider:
5) Frequency compensation:
R _start
≤
V_{rmain _ pk}
I_{VS _ STBY}
= V_{rmain _ pk} ⋅ 10³
R_{Pi 2}
R_Pi1 + R_{Pi 2}
≤
3
V_{rmain _ pk}
V_ZD ≤ VS_max
R _{Po 2}
R_Po1 + R_{P 02}
=
2.5
V_PFC
C_Po = tbd
AMG-LM302 Revision: A
29. Jul. 2010 © All rights reserved Page 19 of 23