Product # PQ60033HMA30
Phone 1-888-567-9596
Doc.# 005-2HM633B Rev. D
4/9/03
Page 3
Half
Brick
Technical Specification
48Vin 3.3Vout 30A
Parameter
Min.
Typ.
Max.
Units
Notes & Conditions
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
100
V
continuous
Operating
80
V
continuous
Operating Transient Protection
100
V
100ms transient
Isolation Voltage (input to output)
2000
V
Basic insulation level, Pollution degree 2
Operating Temperature
-40
100
°C
Storage Temperature
-55
125
°C
Voltage at ON/OFF input pin
-2
18
V
Voltage at Clock Sync pin
-15
18
V
applies to Full Feature option only
INPUT CHARACTERISTICS
Operating Input Voltage Range
35
48
75
V
Input Under-Voltage Lockout
Turn-On Voltage Threshold
31.5
33.3
34.4
V
Turn-Off Voltage Threshold
29.5
31.0
32.4
V
Lockout Hysteresis Voltage
2.2
2.3
2.4
V
Maximum Input Current
3.5
A
100% Load, 35 Vin
No-Load Input Current
75
95
mA
Disabled Input Current
2
5
mA
Inrush Current Transient Rating
0.03
A2s
Response to Input Transient
TBD
mV
1000V/ms input transient
Input Reflected-Ripple Current
3
mA
RMS thru 10H inductor; Figs. 13 & 15
Recommended Input Fuse
20
A
fast blow external fuse recommended
Input Filter Component Values (C1\L\C2)
1.6\4\3.3
F\H\F internal values, see Figure E
Recommended External Input Capacitance
33
47
F
see Figure 13
OUTPUT CHARACTERISTICS
Output Voltage Set Point
3.260
3.300
3.340
V
Output Voltage Regulation
Over Line
+0.05 \ 2
+0.1 \ 3
%\mV
Over Load
+0.1 \ 3
+0.2 \ 7
%\mV
Over Temperature
+15
+30
mV
Total Output Voltage Range
3.220
3.380
V
over sample, line, load, temperature & life
Output Voltage Ripple and Noise
20MHz bandwidth; Fig. 13 & 16
Peak-to-Peak
50
100
mV
Full Load, see Figures 13 & 16
RMS
10
20
mV
Full Load, see Figures 13 & 16
Operating Output Current Range
0
30
A
Output DC Current-Limit Inception
36
A
Output Voltage 10% Low; Fig. 17
Output DC Current-Limit Shutdown Voltage
1.5
V
Current Share Accuracy (2 units paralleled)
+2
+5
%
% of rated output current
Back-Drive Current Limit while Enabled
0.5
1.3
2.5
A
Max negative current drawn from output
Back-Drive Current Limit while Disabled
0
10
50
mA
Max negative current drawn from output
Maximum Output Capacitance
50,000
F
3.3Vout at 30A Resistive Load
DYNAMIC CHARACTERISTICS
Input Voltage Ripple Rejection
80
dB
120 Hz; Fig. 20
Output Voltage during Load Current Transient
Step Change in Output Current (0.1A/s)
100
mV
50% to 75% to 50% Iout max; Figure 11
Step Change in Output Current (5A/s)
100
mV
50% to 75% to 50% Iout max; Figure 12
Settling Time
300
s
to within 1% Vout nom
Turn-On Transient
Turn-On Time
20
30
ms
Full load, Vout=90% nom.; Figs. 9 & 10
Start-Up Inhibit Time
180
200
215
ms
-40°C to +125°C; Figure A
Output Voltage Overshoot
0
%
10,000 F load capacitance, Iout = 0A
EFFICIENCY
100% Load
90
%
Figures 1 - 4
50% Load
91
%
Figures 1 - 4
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
125
°C
Package rated to 150°C
Board Temperature
125
°C
UL rated max operating temp 130°C
Transformer Temperature
125
°C
See Figures 5 - 8 for derating curves
ISOLATION CHARACTERISTICS
Isolation Voltage
2000
V
Isolation Resistance
10
M
Isolation Capacitance
3300
pF
PQ60033HMA30 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.