Q24T25033 DC-DC Converter Data Sheet
18-36 VDC Input; 3.3 VDC @ 25A Output
Electrical Specifications
Conditions: TA=25ºC, Airflow=300 LFM (1.5 m/s), Vin=24 VDC, unless otherwise specified.
PARAMETER
NOTES
MIN
TYP
MAX UNITS
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Operating Ambient Temperature
Storage Temperature
Continuous
0
-40
-55
40
85
125
VDC
°C
°C
INPUT CHARACTERISTICS
Operating Input Voltage Range
Input Under Voltage Lockout
Turn-on Threshold
18
24
36
VDC
Non-latching
16
15
17
16
17.5
16.5
VDC
VDC
Turn-off Threshold
OUTPUT CHARACTERISTICS
External Load Capacitance
Output Current Range
Current Limit Inception
Peak Short-Circuit Current
RMS Short-Circuit Current
Plus full load (resistive)
30,000
25
35
46
6.7
μF
ADC
ADC
A
0
26
Non-latching
Non-latching. Short=10mΩ.
Non-latching
30
35
Arms
ISOLATION CHARACTERISTICS
I/O Isolation
Isolation Capacitance
2000
10
VDC
ρF
Mꢀ
230
435
Isolation Resistance
FEATURE CHARACTERISTICS
Switching Frequency
kHz
%
Output Voltage Trim Range1
Use trim equations on Page 6
Percent of VOUT(NOM)
-20
+10
+10
127
Remote Sense Compensation1
%
Output Over-Voltage Protection
Over-Temperature Shutdown (PCB)
Auto-Restart Period
Non-latching
Non-latching
Applies to all protection features
117
122
118
100
2.5
%
°C
ms
ms
Turn-On Time
ON/OFF Control (Positive Logic)
Converter Off
-20
2.4
0.8
20
VDC
VDC
Converter On
ON/OFF Control (Negative Logic)
Converter Off
2.4
-20
20
0.8
VDC
VDC
Converter On
Additional Notes:
1. Vout can be increased up to 10% via the sense leads or up to 10% via the trim function, however total output voltage trim from all sources
should not exceed 10% of VOUT(NOM), in order to insure specified operation of over-voltage protection circuitry. See further discussion at end of
Output Voltage Adjust /TRIM section.
MCD10223 Rev. 1.0, 02-Sep-10
Page 2 of 14
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