PQ60120QEX25 Datasheet, PDF (4/13 Pages) SynQor Worldwide Headquarters – Quarter-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 12 V
Current: 25 A (300W)
Package: Quarter-brick
PQ60120QEA25 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
temperature with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
Typ. Max. Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
100
V
Operating
80
V
Operating Transient Protection

100
V
Isolation Voltage (input to output)
2250
V
Operating Temperature
-40
100
°C
Storage Temperature
-55
125
°C
Voltage at ON/OFF input pin
-2
18
V
INPUT CHARACTERISTICS
Operating Input Voltage Range
35
48
75
V
Input Under-Voltage Lockout
Turn-On Voltage Threshold
31.5
33.0
34.5
V
Turn-Off Voltage Threshold
28.0
29.5
31.0
V
Lockout Voltage Hysteresis
2.5
3.5
4.5
V
Maximum Input Current
10
A
No-Load Input Current
70
100
mA
Disabled Input Current
20
40
mA
Response to Input Transient
1.0
V
Input Reflected Ripple Current
5
10
mA
Input Terminal Ripple Current
60
mA
Recommended Input Fuse
15
A
Input Filter Component Values (L\C)
1.5/6
µH\µF
Recommended External Input Capacitance
100
µF
OUTPUT CHARACTERISTICS
Output Voltage Set Point
11.70
12.00
12.30
V
Output Voltage Regulation
Over Line¹
Over Load¹
Over Temperature
+1.0\120
+1.0\120
+90
+240
%\mV
%\mV
mV
Total Output Voltage Range
11.58
12.42
V
Output Voltage Ripple and Noise²
Peak-to-Peak
50
100
mV
RMS
10
40
mV
Operating Output Current Range
Output DC Current-Limit Inception
0
27
32
25
A
37
A
Output DC Current-Limit Shutdown Voltage³
5.0
V
Back-Drive Current Limit while Enabled
13
18
23
A
Back-Drive Current Limit while Disabled
0
0.5
1
mA
Maximum Output Capacitance
12
mF
DYNAMIC CHARACTERISTICS
Output Voltage during Load Current Transient
For a Step Change in Output C urrent (0.1A/µs)
350
mV
For a Step Change in Output Current (5A/µs)
350
mV
Settling Time
1
ms
Turn-On Transient
Turn-On Time
24
27
30
ms
Output Voltage Overshoot
2
%
EFFICIENCY
100% Load
95.5
96.0
%
50% Load
96.5
%
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
125
°C
Board Temperature
125
°C
Transformer Temperature
125
°C
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
2250
V
Isolation Resistance
30
MW
Isolation Capacitance⁴
1000
pF
Notes & Conditions
Continuous
Continuous
100ms transient, square wave
Basic insulation, Pollution Degree 2
100V transient for 100ms
100% Load, 35 Vin, trimmed up 5%
0.25V/µs input transient
RMS thru 4.7µH inductor
RMS
Fast blow external fuse recommended
Internal values; see Figure F (Lin\C₂)
Typical ESR 0.1-0.2W
Over sample, line, load, temperature & life
500MHz bandwidth
Full Load
Full Load
Subject to thermal derating
Output Voltage 10% Low
Negative current drawn from output source
Negative current drawn from output source
12Vout at 25A Resistive Load
50% to 75% to 50% Iout max
50% to 75% to 50% Iout max, 470 µF load cap
To within 1% Vout nom
Full load, ON/OFF to Vout=90% nom.
12 mF load capacitance, Iout = 0A
Figures 1 & 2
Figures 1 & 2
Package rated to 150°C
UL rated max operating temp 130°C
See Figures 3 - 6 for derating curves
Note 1: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference.
Note 2: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: [e-mail]).
Note 3: If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup mode, with a 500ms off-time.
Note 4: Higher values of isolation capacitance can be added external to the module.
Product # PQ60120QEA25
Phone [phone]
www.synqor.com
Doc.# 005-2QE612J Rev. B
03/24/09
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