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参数资料
| 型号： | SQL48T20033-NDABG |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, ONE-EIGHTH BRICK PACKAGE-8 |
| 文件页数： | 7/14页 |
| 文件大小： | 773K |
| 代理商： | SQL48T20033-NDABG |
Rev 0.2, 3-Mar-11
www.power-one.com
Page 2 of 14
SQL48T20033 DC-DC Converter
36-75 VDC Input; 3.3 VDC @ 20A Output
Preliminary Data Sheet
Electrical Specifications
Conditions: TA = 25 C, Airflow = 300 LFM (1.5 m/s), Vin = 48 VDC, unless otherwise specified.
Parameter
Notes
Min
Typ
Max
Units
Absolute Maximum Ratings
Input Voltage
Continuous
-0.3
80
VDC
Transient (100ms)
100
VDC
Operating Temperature
1
(See Derating Curves)
Ambient (TA)
-40
85
°C
Component (TC)
-40
120
°C
Baseplate (TB)
-40
105
°C
Storage Temperature
-55
125
°C
Isolation Characteristics
I/O Isolation
2,250
VDC
Isolation Capacitance
270
pF
Isolation Resistance
10
M
Input to Baseplate
1,500
VDC
Output to Baseplate
1,500
VDC
Feature Characteristics
Switching Frequency
445
kHz
Output Voltage Trim Range
2
Industry-std. equations
3
-20
+10
%
Remote Sense Compensation
2, 4
Percent of VOUT(NOM)
+10
%
Output Overvoltage Protection
Non-latching
120
140
%
Over Temperature Shutdown
Non-latching
125
°C
Auto-Restart Period
Applies to all protection features
200
ms
Turn-On Time from Vin
Time from UVLO to Vo=90%VOUT(NOM)
Resistive Load
5
20
ms
Turn-On Time from ON/OFF Control
Time from ON to Vo=90%VOUT(NOM)
Resistive Load
5
20
ms
ON/OFF Control (Positive Logic option)
Converter Off (logic low)
-20
0.8
VDC
Converter On (logic high)
2.4
20
VDC
ON/OFF Control (Negative Logic option)
Converter Off (logic high)
2.4
20
VDC
Converter On (logic low)
-20
0.8
VDC
Additional Notes:
1
Reference Figure H for component (TC and TB) locations.
2
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-up should
not exceed 10% of VOUT(NOM).
3
Trim equation
s are defined within this documents “Operations” section.
4
When using remote sense a minimum of 100uF ceramic capacitance should be mounted between Vout(+) and Vout(-) close to pin 8 and
pin 4.
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