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DH12S12-33HS Datasheet(PDF) 2 Page - Wall Industries,Inc.

Part # DH12S12-33HS
Description  50 Watt DC/DC Power Converters
Download  11 Pages
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Manufacturer  WALL [Wall Industries,Inc.]
Direct Link  http://www.wallindustries.com
Logo WALL - Wall Industries,Inc.

DH12S12-33HS Datasheet(HTML) 2 Page - Wall Industries,Inc.

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Rev F
DH50 SERIES
50 Watt DC/DC Power Converters
05/16/2017
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-
9797
website: www.wallindustries.com • e-mail: sales@wallindustries.com
Page 2 of 11
SPECIFICATIONS: DH50 SERIES
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
TEST CONDITIONS
Min
Typ
Max
Unit
INPUT SPECIFICATIONS
Input Voltage Range
12VDC nominal input models
9
12
18
VDC
24VDC nominal input models
18
24
36
48VDC nominal input models
36
48
75
Input Surge Voltage (100ms max.)
12VDC nominal input models
-0.7
25
VDC
24VDC nominal input models
-0.7
50
48VDC nominal input models
-0.7
100
Start-up Threshold Voltage
12VDC nominal input models
9
VDC
24VDC nominal input models
18
48VDC nominal input models
36
Under Voltage Lockout (UVLO)
12VDC nominal input models
8.3
VDC
24VDC nominal input models
16.5
48VDC nominal input models
33
Start-up Time
Nominal Vin and constant resistive load
Power Up
30
ms
Remote On/Off
30
Input Current
See Table
Reflected Ripple Current (Page 10)
See Table
Conducted EMI
for EN55032 Class A and FCC level A compliance see Note 3
Internal LC Filter
Short Circuit Current
Hiccup mode
24VDC output models
0.3
Hz
Others
1.5
OUTPUT SPECIFICATIONS
Output Voltage
See Table
Line Regulation
Low line to high line at full load
±0.5
%
Load Regulation
Minimum load to full load
±0.5
%
Output Voltage Setting Accuracy
At 50% load and nominal Vin
±1.0
%Vnom
Output Voltage Trim (Page 5)
% of nominal output voltage
24VDC output models
-10
+20
%
Others
-10
+10
Output Power
See Table
Output Current
See Table
Minimum Load
No minimum load required
Ripple & Noise (0-20MHz) (Page 10)
Measured with a 1µF MLCC and a
10µF tantalum capacitor in parallel
3.3V & 5V output models
100
mVp-p
12V, 15V, & 24V output models
150
Transient Recovery Time (Note 1)
25% load step change
250
µs
Transient Recovery Deviation (Note 1) 25% load step change
±3
±5
%
Temperature Coefficient
±0.02
%/°C
PROTECTION
Input Polarity Protection
none
Over Voltage Protection (page 10)
For shutdown voltage see table
Over Current Protection
Hiccup
Current limitation at 150% typ. of Iout max.
Thermal Protection
Shutdown temperature
110
°C
Short Circuit Protection
Hiccup, automatic recovery
GENERAL SPECIFICATIONS
Efficiency
(see efficiency curves on pages 7-9)
See Table
Switching Frequency
24VDC output models
285
KHz
Others
320
Isolation Voltage (Input to Output)
60 seconds
1500
VDC
1 second
1800
Isolation Resistance
500VDC
1000
Isolation Capacitance
100kHz, 1V
2200
pF
Maximum Capacitive Load
See Table


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