Input:
35-75 V
Output:
12 V
Current:
4 A
Package:
Eighth-brick
Technical Specification
PQ60120EML04 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 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
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
Maximum Input Current
35
48
75
V
32
28.5
2.5
33
29.5
3.5
34
30.5
4.5
1.9
50
V
V
V
A
100% Load, 35 Vin
No-Load Input Current
28
mA
mA
Disabled Input Current
2.5
5.0
0.01
2
Inrush Current Transient Rating
Response to Input Transient
Input Reflected Ripple Current
Input Terminal Ripple Current
Recommended Input Fuse
Input Filter Component Values (C\L)
Recommended External Input Capacitance
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
A s
200
7
mV
mA
mA
A
150V/ms input transient
RMS thru 10µH inductor; Figures 13 & 15
175
RMS; Figures 13 & 14
20
Fast blow external fuse recommended
1.0\4.7
47
µF\µH Internal values; see Figure E
µF
V
Typical ESR 0.1-0.2Ω; see Figure 13
11.85
11.75
12.000
12.15
+
+
+
0.01 \ 1
0.01 \ 1
0.05 \ 6
0.05 \ 6
%\mV
%\mV
mV
+
Over Load
+
+
100
Over Temperature
24
Total Output Voltage Range
12.25
V
Over sample, line, load, temperature & life
20MHz bandwidth; Figures 13 & 16
Full Load; Figures 13 & 16
1
Output Voltage Ripple and Noise
Peak-to-Peak
75
100
20
mV
mV
A
RMS
15
Full Load; Figures 13 & 16
Operating Output Current Range
Output DC Current-Limit Inception
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 Output Current (0.1A/µs)
For a Step Change in Output Current (5A/µs)
Settling Time
0
4.2
5.5
Subject to thermal derating; Figures 5 - 8
Output Voltage 10% Low; Figure 17
4.5
5.0
7.0
A
V
0.10
10
0.24
50
A
Negative current drawn from output
Negative current drawn from output
12Vout at 4.2A Resistive Load
mA
µF
1,000
60
dB
120 Hz; Figure 20
250
250
800
mV
mV
µs
50% to 75% to 50% Iout max; Figure 11
50% to 75% to 50% Iout max; Figure 12
To within 1% Vout nom
Turn-On Transient
Turn-On Time
5
230
0
10
ms
ms
%
Full load, Vout=90% nom.; Figures 9 & 10
-40°C to +125°C; Figure F
Start-Up Inhibit Time
180
250
Output Voltage Overshoot
EFFICIENCY
1,000 µF load capacitance, Iout = 0A
100% Load
90
%
%
Figures 1 - 4
Figures 1 - 4
50% Load
89.5
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
Board Temperature
125
125
125
°C
°C
°C
Package rated to 150°C
UL rated max operating temp 130°C
See Figures 5 - 8 for derating curves
Transformer Temperature
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
Isolation Resistance
2000
30
V
M
Ω
Isolation Capacitance2
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 # PQ60120EML04
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2EM612E Rev. C
04/25/06
Page 3
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