Product # PQ60240HZx25
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005987 Rev. 1
12/02/10
Page 6
Technical Specification
Input:
35-75V
Output:
24V
Current:
25A
Package:
Half-brick
Electrical Characteristics
PQ60240HZx25 Electrical Characteristics
Ta = 25 °C, airflow rate = 300 LFM, Vin = 48V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate 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
V
Continuous
Operating
80
V
Continuous
Isolation Voltage
Input to Output
2250
V
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
32.0
33.0
34.0
V
Turn-Off Voltage Threshold
29.0
31.0
31.5
V
Lockout Voltage Hysteresis
1.5
2.0
2.5
V
Maximum Input Current
20.0
A
100% Load, 35V Vin, trimmed up 10%
No-Load Input Current
TBD
mA
Disabled Input Current
3
5
mA
Response to Input Transient
TBD
V
0.50V/μs input transient
Input Reflected Ripple Current
TBD
mA
RMS thru 4.7μH inductor
Input Terminal Ripple Current
TBD
mA
RMS
Recommended Input Fuse
40
A
Fast acting external fuse recommended
Recommended External Input Capacitance
220
F
Typical ESR 0.1-0.2Ω; Figure 13
Input Filter Component Values (L\C)
0.75\11
H\F Internal values
OUTPUT CHARACTERISTICS
Output Voltage Set Point
23.6
24.00
24.34
V
Output Voltage Regulation
Over Line
±0.25
%
See note 1
Over Load
±0.25
%
See note 1
Over Temperature
-312
312
mV
Total Output Voltage Range
23.28
24.72
V
Over sample, line, load, temperature & life
Output Voltage Ripple and Noise
20MHz bandwidth; see Note 2
Peak-to-Peak
TBD
mV
Full load
RMS
TBD
mV
Full load
Operating Output Current Range
0
25
A
Subject to thermal derating
Output DC Current-Limit Inception
31.0
30.0
33.0
A
Output Voltage 10% Low
Output DC Current-Limit Shutdown Voltage
9.6
V
See note 3
Back-Drive Current Limit while Enabled
TBD
A
Negative current drawn from output
Back-Drive Current Limit while Disabled
0
3
4
mA
Negative current drawn from output
Maximum Output Capacitance Electrolytic
TBD
F
Nominal Vout at full load (resistive load)
EFFICIENCY
100% Load
94
%
Figures 1 - 2
50% Load
94
%
Figures 1 - 2
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