DC-DC Converter
QHL600 Series
Input
Characteristic
Minimum
180
Typical
Maximum
425
Units
VDC
A
Notes & Conditions
Input Voltage Range
Input Current
1.8
3.8
425-180 VDC input
Input Surge
475
VDC
For 100 ms
>160 V
<150 V
170
160
10
180
On
Off
Undervoltage Lockout
VDC
170
Lockout Hysteresis
VDC
VDC
VDC
mA
Input Transient Voltage
Input Overvoltage Lockout
Idle Current
475
For 100 ms
480/500
10
Module On / Module Off
When output is remotely turned off
Inrush Current
1.0
50
A2s
Recommended Input Fuse
Input Reflected Ripple Current
6.3
A
Fast acting type
mA pk-pk
Through 10 µH inductor
Output
Characteristic
Output Voltage
Output Trim
Minimum
12
Typical
Maximum
Units
VDC
%
Notes & Conditions
48
+10
1
See Models and Ratings table
See Application Note
-40
Initial Set Accuracy
Minimum Load
Line Regulation
Load Regulation
%
At full load
0
%
No minimum load required
From minimum to maximum input at full load
From 0% to full load
0.2
0.5
%
%
Maximum deviation, recovering to less than 1% in
500 µs for 25% step load change.
Transient Response
3.0
5.0
%
Start Up Time
700
40
ms
ms
Output Voltage Rise Time
Ripple & Noise
mV pk-pk
%
See models and ratings table
Overload Protection
Short Circuit Protection
105
115
125
Continuous hiccup mode, with auto recovery
See Models and Ratings table. Minimum capacitance of
330 µF required to meet specified regulations
Maximum Capacitive Load
Temperature Coefficient
Overvoltage Protection
0.03
140
%/˚C
%
125
Ouput is on if REM+ (pin 4) is open or high (3.5-75 VDC) WRT REM- (pin 3) or -Vin
Output turns off if REM+ (pin 4) is low (<1.2 VDC max) WRT REM- (pin 3) or -Vin
Remote On/Off
General
Characteristic
Minimum
Typical
Maximum
Units
%
Notes & Conditions
Efficiency
90
See Models and Ratings table
Isolation: Input to Output
Isolation: Input to Case
Isolation: Output to Case
Switching Frequency
Isolation Resistance
Power Density
3000
2500
500
VAC
VAC
VAC
kHz
MΩ
60 s
60 s
60 s
200
Fixed, 15%
9
10
3
135
W/in
Mean Time Between Failure
Weight
420
kHrs
lb (g)
MIL-HDBK-217F, +25 °C GB
0.51 (230.0)
Environmental
Characteristic
Minimum
-40
Typical
Maximum
+100
Units
Notes & Conditions
Operating Base Plate Temperature
Storage Temperature
Thermal Protection
Humidity
°C
°C
-55
+105
+105
°C
Auto recovery at 75 °C typical
Non-condensing
95
%RH
Cooling
Baseplate-cooled
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