Product # DQ61212QMA06

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2DQ612E Rev. C

01/11/06

Page 9

T

pecification

Input:

Input:

Outputs:

Outputs:

ower:

ackage:

35-75V

35-75V

+12V & -12V

+12V & -12V

60W

60W

Quarter-brick

Quarter-brick

inductor at nominal input voltage and rated load current (5 mA/div).

-12V and +12V outputs at 50% rated load current. (see Fig. 23)

Figure 26: Output voltage ripple at nominal input voltage and 50%

5.0

6.0

7.0

8.0

9.0

10.0

11.0

12.0

13.0

14.0

15.0

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

35 V

48 V

75 V

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.

5.0

6.0

7.0

8.0

9.0

10.0

11.0

12.0

13.0

14.0

15.0

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

35 V

48 V

75 V

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

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.

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

trace is an expansion of the on-time portion of the bottom trace.

+12Vout

-12Vout