Input:
Outputs:
Power:
35-75V
+12V & -12V
60W
Package:
Quarter-brick
Technical Specification
DQ61212QMA06 ELECTRICAL CHARACTERISTICS
TA=25°C, airflow rate=300 LFM, Vin=48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C ambient tem-
perature with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
Typ.
Max.
Units Notes & Conditions
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
100
80
V
V
Continuous
Operating
Continuous
Operating Transient Protection
100
2000
100
125
18
V
100ms transient, square wave
Basic insulation, Pollution Degree 2
Isolation Voltage (input to output)
Operating Temperature
V
-40
-55
-2
°C
°C
V
Storage Temperature
Voltage at ON/OFF input pin
INPUT CHARACTERISTICS
Operating Input Voltage Range
Input Under-Voltage Lockout
Turn-On Voltage Threshold
35
48
75
V
32
28.5
2.5
33
29.5
3.5
34
30.5
4.5
2.1
80
V
V
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
V
Maximum Input Current
A
100% Load, 35 Vin
No-Load Input Current
70
mA
mA
Disabled Input Current
2.0
5
2
Inrush Current Transient Rating
Response to Input Transient
Input Reflected Ripple Current
Input Terminal Ripple Current
Recommended Input Fuse
0.01
A s
150
175
mV
mA
mA
A
1000V/ms input transient
20
20
RMS thru 10µH inductor; Figures 23 & 25
RMS; Figures 23 & 24
Fast blow external fuse recommended
Input Filter Component Values (L\C)
Recommended External Input Capacitance
OUTPUT CHARACTERISTICS
Output Voltage Set Point (-12V)
Output Voltage Set Point (+12V)
Total Output Voltage Regulation (-12V)
Total Output Voltage Regulation (+12V)
4.7\2.0
47
µH\µF Internal values; see Figure E
µF
Typical ESR 0.1-0.2Ω, see Figure 23
-12.06
12.06
V
V
V
V
48Vin, 50% load on each voltage
48Vin, 50% load on each voltage
Cross regulation, line, load, temp; Figures 7 - 10
Cross regulation, line, load, temp; Figures 7 - 10
20MHz bandwidth; Figures 23 & 26
Full Load; see Figures 23 & 26
-12.60
11.55
-11.55
12.60
1
Output Voltage Ripple and Noise (+12V)
Peak-to-Peak
80
12
180
30
5
mV
mV
A
RMS
Full Load; see Figures 23 & 26
Operating Output Current Range (+12V)
Output DC Current-Limit Inception (+12V)
Short-Circuit Protection - redundant shutdown (+12V)
Output DC Current-Limit Shutdown Voltage
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
DYNAMIC CHARACTERISTICS
Input Voltage Ripple Rejection
Output Voltage during Load Current Transient
For a Step Change in -12V Output Current (.1A/µs)
For a Step Change in +12V Output Current (.1A/µs)
Settling Time
0
Subject to thermal derating; Figures 11 - 18
Output Voltage 10% Low; Figures 27 - 28
Figures 29 - 30
5.7
6
12
6.5
A
A
8
V
0.18
0.54
10
0.90
A
Negative current drawn from output
Negative current drawn from output
12Vout at 5A Resistive Load
mA
µF
4,800
55
dB
120 Hz; Figures 33 - 34
160
160
200
mV
mV
µs
50% to 75% to 50% Iout max; Figure 21
50% to 75% to 50% Iout max; Figure 22
To within 1% Vout nom
Turn-On Transient
Turn-On Time
4
200
5
8
ms
ms
%
Full load, Vout=90% nom.; Figures 19 & 20
-40°C to +125°C; Figure F
Start-Up Inhibit Time
180
240
Output Voltage Overshoot
4,800 µF load capacitance, Iout = 0A
EFFICIENCY
100% Load
91.5
91.5
%
%
48Vin, 50% combined Vout; Figures 1 - 6
48Vin, 50% combined Vout; Figures 1 - 6
50% Load
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
Board Temperature
125
125
110
°C
°C
°C
Package rated to 150°C
UL rated max operating temp 130°C
See Figures 11 - 18 for derating curves
Transformer Temperature
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
Isolation Resistance
2000
30
V
M
Ω
2
Isolation Capacitance
470
pF
Note 1: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com).
Note 2: Higher values of isolation capacitance can be added external to the module.
Product # DQ61212QMA06
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2DQ612E Rev. C
01/11/06
Page 3
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