Product # PQ60012SMx25
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005219 Rev. A
06/12/09
Page 4
Technical Specification
Input:
Output:
Current:
48V
1.2V
25A
PQ60012SMx25 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 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
V
Continuous
Operating
80
V
Continuous
Operating Transient Protection
100
V
100ms transient
Isolation Voltage
Input to Output
2250
V dc
Input to output
Operating Temperature
-40
100
°C
Storage Temperature
-55
125
°C
Voltage at ON/OFF input pin
-2
8
V
INPUT CHARACTERISTICS
Operating Input Voltage Range
35
48
75
V
Input Under-Voltage Lockout
Turn-On Voltage Threshold
31.2
32.5
33.8
V
Turn-Off Voltage Threshold
28.9
30.5
32.2
V
Lockout Voltage Hysteresis
2.0
V
Maximum Input Current
1.2
A
100% Load, Vin min, nominal Vout
No-Load Input Current
40
50
mA
Disabled Input Current
10
14
mA
Response to Input Transient
20
mV
1000V/ms input transient
Input Reflected Ripple Current
3
mA
RMS thru 10μH inductor; Figures 13 & 15
Input Terminal Ripple Current
30
mA
RMS; Figures 13 & 14
Recommended Input Fuse
20
A
Recommended External Input Capacitance
100
F
Typical ESR 0.1-0.2 Ω
Input Filter Component Values (L\C)
1.0/2.35
H/F Internal values; see Figure E
OUTPUT CHARACTERISTICS
Output Voltage Set Point
1.188
1.2
1.212
V
Output Voltage Regulation
Over Line
±0.1/1.2
+0.3/3.6
%mV
Over Load
±0.1/1.2
+0.3/3.6
%mV
Over Temperature
-18
18
mV
Total Output Voltage Range
1.170
1.212
V
Over sample, line, load, temperature & life
Output Voltage Ripple and Noise
20 MHz bandwidth; Figures 13 & 16; see Note 1
Peak-to-Peak
40
80
mV
Full load
RMS
10
20
mV
Full load
Operating Output Current Range
0
25
A
Subject to thermal derating; Figures 5 - 8
Output DC Current-Limit Inception
27.5
30
32.5
A
Figure 17
Back-Drive Current Limit while Enabled
1.2
A
Negative current drawn from output
Back-Drive Current Limit while Disabled
2
mA
Negative current drawn from output
Maximum Output Capacitance
10
mF
Vout nominal at full load (resistive load); See Note 2
EFFICIENCY
100% Load
80
%
See Figure 1 for efficiency curve
50% Load
80
%
See Figure 1 for efficiency curve
Note 1: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (email: support@synqor.com)
Note 2: Recommended minimum output capacitance is 100uF