RDK-242 Power Integrations, RDK-242 Datasheet - Page 40

• Manufacturer Part Number: RDK-242
• Description: Power Management Modules & Development Tools TOPSwitch-JX REF. DESIGN KIT
• Manufacturer: Power Integrations
• Type: MOSFET & Power Driverr

Specifications of RDK-242

• Input Voltage: 85 VAC to 264 VAC
• Output Voltage: 12 V
• Maximum Operating Temperature: + 40 C
• Minimum Operating Temperature: 0 C
• Operating Supply Voltage: 85 VAC to 264 VAC
• Product: Power Management Modules

12.4 Over Current Protection
The waveform below shows V
Maximum V
Figure 29 – 85 VAC 60 Hz.
The output diodes had the highest recorded temperature during an output short circuit at
85 VAC, 60 Hz (input power of 2.2 W). A temperature of 45 C was well within the
temperature limits of the diodes.
Figure 31 – 85 VAC 60 Hz Short Circuit
CH1: V
CH3: I
CH2: I
CH4: V
Input Power = 2.2 W.
Power Integrations, Inc.
Tel: [phone] Fax: [phone]
www.powerint.com
D8, D9 : 45.2˚C (
DRAIN
DRAIN
OUT
DRAIN
OUT
and I
, 1 A / div.
, 2 V / div.
, 0.25 A / div.
, 100 V / div.
DRAIN
T
A
are within the maximum allowable limits.
= 25˚C).
DRAIN
, I
DRAIN
, I
Figure 30 – 264 VAC 63 Hz.
Figure 32 – 85 VAC 60 Hz Short Circuit
OUT
, and V
CH1: V
CH3: I
CH2: I
CH4: V
Input Power = 0.4 W.
U1 : 34.6˚C (
OUT
DRAIN
OUT
DRAIN
OUT
, 1 A / div.
when output is shorted.
, 2 V / div.
, 0.25 A / div.
, 100 V / div.
T
A
= 25˚C).
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