Technical Specification
Brick
PQ48025HTA60 ELECTRICAL CHARACTERISTICS
Parameter
ABSOLUTE MAXIMUM RATINGS
Half
48Vin 2.5Vout 60A
T
A
=25°C, airflow rate=300 LFM, V
in
=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.
Min.
Typ.
Max.
100
80
100
2000
100
125
18
18
48
33.3
31.0
2.3
78.3
75
2
0.03
150
5
33
2.48
1.6\4\3.3
47
2.50
+0.05 \ 1
+0.1 \ 3
+15
50
10
69
1.4
+2
2.0
10
80
100
100
300
180
20
200
0
87
89
125
125
125
2000
10
3300
30
215
75
34.4
32.4
2.4
79.5
5.0
95
5
Units
V
V
V
V
°C
°C
V
V
V
V
V
V
V
A
mA
mA
A
2
s
mV
mA
A
µF\µH\µF
µF
V
%\mV
%\mV
mV
V
mV
mV
A
A
V
%
A
mA
µF
dB
mV
mV
µs
ms
ms
%
%
%
°C
°C
°C
V
M
Ω
pF
Notes & Conditions
continuous
continuous
< 10µs
Basic insulation level, Pollution degree 2
Input Voltage
Non-Operating
Operating
Operating Transient Protection
Isolation Voltage (input to output)
Operating Temperature
Storage Temperature
Voltage at ON/OFF input pin
Voltage at Clock Sync pin
-40
-55
-2
-15
35
31.5
29.5
2.2
76.7
applies to Full Feature option only
INPUT CHARACTERISTICS
Operating Input Voltage Range
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis Voltage
Input Over-Voltage Shutdown
Maximum Input Current
No-Load Input Current
Disabled Input Current
Inrush Current Transient Rating
Response to Input Transient
Input Reflected-Ripple Current
Recommended Input Fuse
Input Filter Component Values (C
1
\L\C
2
)
Recommended External Input Capacitance
Output Voltage Set Point
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
Current Share Accuracy (2 units paralleled)
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
Input Voltage Ripple Rejection
Output Voltage during Load Current Transient
Step Change in Output Current (0.1A/µs)
Step Change in Output Current (5A/µs)
Settling Time
Turn-On Transient
Turn-On Time
Start-Up Inhibit Time
Output Voltage Overshoot
100% Load
50% Load
Semiconductor Junction Temperature
Board Temperature
Transformer Temperature
Isolation Voltage
Isolation Resistance
Isolation Capacitance
100% Load, 35 Vin
20
see Figure 13
1000V/ms input transient
RMS thru 10µH inductor; Figs. 13 & 15
fast blow external fuse recommended
internal values, see Figure E
OUTPUT CHARACTERISTICS
2.53
+0.1 \ 3
+0.2 \ 5
+30
2.57
100
20
60
74
+5
3.0
50
>50,000
2.44
0
64
0.5
0
over sample, line, load, temperature & life
20MHz bandwidth; Fig. 13 & 16
Full Load, see Figures 13 & 16
Full Load, see Figures 13 & 16
Output Voltage 10% Low; Fig. 17
% of rated output current
Max negative current drawn from output
Max negative current drawn from output
2.5Vout at 60A Resistive Load
120 Hz; Fig. 20
50% to 75% to 50% Iout max; Figure 11
50% to 75% to 50% Iout max; Figure 12
to within 1% Vout nom
Full load, Vout=90% nom.; Figs. 9 & 10
-40°C to +125°C; Figure A
10,000 µF load capacitance, Iout = 0A
Figures 1 - 4
Figures 1 - 4
Package rated to 150°C
UL rated max operating temp 130°C
See Figures 5 - 8 for derating curves
DYNAMIC CHARACTERISTICS
EFFICIENCY
TEMPERATURE LIMITS FOR POWER DERATING CURVES
ISOLATION CHARACTERISTICS
Product # PQ48025HTA60
Phone 1-888-567-9596
Doc.# 005-2HT425F Rev. Q
11/19/02
Page 3
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