DER-49
-12V/3W, Non-Isolated Buck-Boost Converter
April 20, 2005
2 Power Supply Specification
Description
Symbol
Min
Typ
50/60
12
Max
Units
Comment
Input
2 Wire – No Protective Earth
Voltage
Frequency
No-load Input Power (240 VAC)
VIN
fLINE
108
47
265
64
0.2
VAC
Hz
W
Output
10%
Output Voltage 1
Output Ripple Voltage 1
Output Current 1
VOUT
VRIPPLE1
IOUT
10.8
0
13.2
200
250
V
mV
mA
20 MHz Bandwidth
3.5 mA pre-load fitted on board
Total Output Power
Continuous Output Power
POUT
3
W
%
Measured at 85 VAC, 25 oC
Efficiency
50
η
Free convection, sea level. For
operation at >70 °C substitute D1
for a diode with trr ≤35 ns
Ambient Temperature
TAMB
-20
50/85
oC
Table 1 - Specifications
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
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