SQ48 Power-One, SQ48 Datasheet - Page 2

• Manufacturer Part Number: SQ48
• Description: Sq48 Dc-dc Series
• Manufacturer: Power-One

Electrical Specifications (common for all versions)
Conditions: T
Additional Notes:
1
SEP 14, 2005 revised to NOV 06, 2006
Input Characteristics
Isolation Characteristics
Absolute Maximum Ratings
Input Voltage
Operating Ambient Temperature
Storage Temperature
Operating Input Voltage Range
Input Undervoltage Lockout
Input Voltage Transient
I/O Isolation
Isolation Capacitance
Isolation Resistance
Feature Characteristics
Switching Frequency
Output Voltage Trim Range
Remote Sense Compensation
Output Overvoltage Protection
Auto-Restart Period
Turn-On Time
ON/OFF Control (Positive Logic)
ON/OFF Control (Negative Logic)
Vout can be increased up to 10% via the sense leads or up to 10% via the trim function. However, the total output voltage trim from all
sources should not exceed 10% of V
Turn-on Threshold
Turn-off Threshold
Converter Off (logic low)
Converter On (logic high)
Converter Off (logic high)
Converter On (logic low)
A
= 25 ºC, Airflow = 300 LFM (1.5 m/s), Vin = 48 VDC, All output voltages, unless otherwise specified.
Parameter
1
1
OUT
(
NOM
), in order to ensure specified operation of overvoltage protection circuitry.
Continuous
Non-latching
100 ms
1.0 - 3.3 V
5.0 - 6.0 V
8.0 - 12 V
Industry-std. equations (1.5 - 12V)
Use trim equation on Page 4 (1.0 -1.2 V)
Percent of V
Non-latching (1.5 - 12 V)
Non-latching (1.0 - 1.2 V)
Applies to all protection features
See Figs. F, G and H
OUT
Page 2 of 64
(
NOM
Notes
)
36-75 VDC Input; 1.0-12 VDC Output
SQ48 DC-DC Series Data Sheet
2000
Min
117
124
-40
-55
-20
-10
-20
-20
2.4
2.4
36
33
31
10
0
Typ
160
260
230
415
122
132
100
48
34
32
4
www.power-one.com
Max
125
100
+10
+10
+10
127
140
0.8
0.8
80
85
75
35
33
20
20
Units
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
kHz
MΩ
ms
ms
°C
°C
pF
pF
pF
%
%
%
%
%