PQ60120HZX50 Datasheet, PDF (4/13 Pages) SynQor Worldwide Headquarters – Half-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 12 V
Current: 50 A (600W)
Package: Half-brick
PQ60120HZA50 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.
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
100
Operating
80
Operating Transient Protection

100
Isolation Voltage (input to output)
2250
Operating Temperature
-40
100
Storage Temperature
-55
125
Voltage at ON/OFF input pin
INPUT CHARACTERISTICS
-2
18
Operating Input Voltage Range
35
48
75
Input Under-Voltage Lockout
Turn-On Voltage Threshold
31.5
33.0
34.5
Turn-Off Voltage Threshold
29.0
30.5
32.0
Lockout Voltage Hysteresis
1.5
2.5
3.5
Maximum Input Current
20
No-Load Input Current
125
200
Disabled Input Current
20
40
Response to Input Transient
1.0
Input Reflected Ripple Current
5
20
Input Terminal Ripple Current
220
Recommended Input Fuse
30
Input Filter Component Values (L\C)
0.75\11
Recommended External Input Capacitance
220
OUTPUT CHARACTERISTICS
Output Voltage Set Point
11.72
12.00
12.28
Output Voltage Regulation
Over Line¹
Over Load¹
Over Temperature
+1.0\120
+1.0\120
+90
+240
Total Output Voltage Range
11.60
12.40
Output Voltage Ripple and Noise²
Peak-to-Peak
RMS
90
150
20
30
Operating Output Current Range
Output DC Current-Limit Inception
0
50
55
60
70
Output DC Current-Limit Shutdown Voltage³
5.0
Back-Drive Current Limit while Enabled
13
18
23
Back-Drive Current Limit while Disabled
0
3
4
Maximum Output Capacitance
12
DYNAMIC CHARACTERISTICS
Output Voltage during Load Current Transient
For a Step Change in Output C urrent (0.1A/µs)
350
For a Step Change in Output Current (5A/µs)
500
Settling Time
1
Turn-On Transient
Turn-On Time
25
29
32
Output Voltage Overshoot
2
EFFICIENCY
100% Load
94.5
95.0
50% Load
96.5
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
125
Board Temperature
125
Transformer Temperature
125
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
2250
Isolation Resistance
Isolation Capacitance⁴
30
1000
Units Notes & Conditions
V
Continuous
V
Continuous
V
100ms transient, square wave
V
Basic insulation, Pollution Degree 2
°C
°C
V
V
100V transient for 100ms
V
V
V
A
mA
mA
V
mA
mA
A
µH\µF
µF
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
V
%\mV
%\mV
mV
V
mV
mV
A
A
V
A
mA
mF
Over sample, line, load, temperature & life
20MHz 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 50A Resistive Load
mV 50% to 75% to 50% Iout max, 470 µF load cap
mV
“
ms To within 1% Vout nom
ms Full load, ON/OFF to Vout=90% nom.
%
%
Figures 1 & 2
%
Figures 1 & 2
°C Package rated to 150°C
°C UL rated max operating temp 130°C
°C See Figures 3 - 6 for derating curves
V
MW
pF
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 # PQ60120HZx50
Phone [phone]
www.synqor.com
Doc.# 005-2HZ612J Rev. D
06/12/09
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