Input:
Outputs:
Power:
35-75V
+12V & -12V
60W
Package:
Quarter-brick
Technical Specification
+12Vout
-12Vout
Figure 25: Input reflected ripple current, i , through a 10
inductor at nominal input voltage and rated load current (5 mA/div).
-12V and +12V outputs at 50% rated load current. (see Fig. 23)
µ
H source
Figure 26: Output voltage ripple at nominal input voltage and 50%
rated load current on both outputs (10 mV/div). Load capacitance: 1µF
ceramic cap & 15µF tantalum cap. Bandwidth: 20 MHz. (see Fig. 23)
s
15.0
14.0
13.0
12.0
11.0
10.0
9.0
15.0
14.0
13.0
12.0
11.0
10.0
9.0
8.0
35 V
8.0
35 V
48 V
75 V
7.0
48 V
7.0
6.0
5.0
6.0
75 V
5.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
Load Current (A)
Load Current (A)
Figure 27: Output voltage vs. load current showing typical current limit
curves and converter shutdown points for the -12V output. +12V load is
at 0A.
Figure 28: Output voltage vs. load current showing typical current limit
curves and converter shutdown points for the +12V output. -12V load is
at 0A.
Figure 29: Load current for -12V output (2A/div) as a function of time
Figure 30: Load current for +12V output (2A/div) as a function of time
when the converter attempts to turn on into a 10 m
Ω
short circuit. Top
when the converter attempts to turn on into a 10 m
Ω short circuit. Top
trace is an expansion of the on-time portion of the bottom trace.
trace is an expansion of the on-time portion of the bottom trace.
Product # DQ61212QMA06
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2DQ612E Rev. C
01/11/06
Page 9
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