Magic Switch
CM02/CMD02
Magic Switch: No Load Æ Zero Input Power
Table 1. Discharge resistor select
DISCHARGE TIMING TEST
Condition : 264VAC , Cx = 0.62uF ;Tdischarge time <0.6sec--------look up table1-Æ Rd1+Rd2 ~~~ 906K
A Csurge ~ 47pF capacitor should be added to parallel with Magic switch for strenuous lightning surge test. The
Csurge is added to suppress the voltage across Magic Switch.
Magic switch 4/2 terminal package provides minimum 50/3 mm space for PCB layout. Magic Switch is designed for
lightning surge sensitive environment.
Without Magic Switch, the equivalent circuit on the simplified block figure has been provided and it will have the
similar good performance. However, Magic Switch is more cost-effective and easy layout.
The maximum Rd1+Rd2=0 ohm and the minimum Cx=2UF (1sec discharge 37% or 42V)
The maximum Rd1+Rd2=1.1M ohm and the minimum Cx=0.1UF
2015/11/03 Rev. 1.0
Champion Microelectronic Corporation
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