
Product # PQ60012EML15
Phone 1-888-567-9596
Doc.# 005-2EM621E Rev. C
11/20/03
Page 3
Technical Specification
48Vin 1.2Vout 15A
Eighth
Brick
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 level, Pollution Degree 2
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
33.3
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
0.7
A
100% Load, 35 Vin
No-Load Input Current
25
mA
Disabled Input Current
2
5
mA
Inrush Current Transient Rating
0.01
A2s
Response to Input Transient
50
mV
1000V/ms input transient
Input Reflected-Ripple Current
3
mA
RMS thru 10H inductor; Figs. 13 & 15
Recommended Input Fuse
10
A
fast blow external fuse recommended
Input Filter Component Values (C\L)
1.0\4.7
F\H
internal values, see Figure E
Recommended External Input Capacitance
33
47
F
see Figure 13
OUTPUT CHARACTERISTICS
Output Voltage Set Point
1.188
1.20
1.212
V
Output Voltage Regulation
Over Line
+0.08 \ 1 +0.25 \ 3
%\mV
Over Load
+0.08 \ 1 +0.25 \ 3
%\mV
Over Temperature
+6
+20
mV
Total Output Voltage Range
1.155
1.245
V
over sample, line, load, temperature & life
Output Voltage Ripple and Noise
20MHz bandwidth; Fig. 13 & 16
Peak-to-Peak
60
110
mV
Full Load, see Figures 13 & 16
RMS
15
25
mV
Full Load, see Figures 13 & 16
Operating Output Current Range
0
15
A
Output DC Current-Limit Inception
16
17
20.6
A
Output Voltage 10% Low; Fig. 17
Output DC Current-Limit Shutdown Voltage
0.65
V
Back-Drive Current Limit while Enabled
0.3
0.6
0.95
A
Negative current drawn from output
Back-Drive Current Limit while Disabled
50
75
135
mA
Negative current drawn from output
Maximum Output Capacitance
45,000
F
1.2Vout at 15A 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)
35
mV
50% to 75% to 50% Iout max; Figure 11
Step Change in Output Current (5A/s)
65
mV
50% to 75% to 50% Iout max; Figure 12
Settling Time
600
s
to within 1% Vout nom
Turn-On Transient
Turn-On Time
3
8
ms
Full load, Vout=90% nom.; Figs. 9 & 10
Start-Up Inhibit Time
180
200
240
ms
-40°C to +125°C; Figure F
Output Voltage Overshoot
0
%
45,000 F load capacitance, Iout = 0A
EFFICIENCY
100% Load
84.5
%
Figures 1 - 4
50% Load
85
%
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
30
M
Isolation Capacitance
470
pF
PQ60012EML15 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.