DC-DC High Power
50-200 Watts
DCH Series
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T
HE
XP
ERTS
I
N
P
OWER
Upto 89% Efficiency
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-40 °C Operation
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High Reliability
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Industry Standard Package
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Overcurrent Protection
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-40% to +10% Adjustment
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2:1 Input Voltage Range
Specification
Input
Input Voltage
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18-36 VDC, 36-76 VDC
General
Efficiency
Isolation
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79-89% (See Tables)
1500 VDC Input to Output
1500 VDC Input to Ground
500 VDC Output to Ground
370 kHz (310 kHz DCH50)
Contact Sales
Output
Output Voltage
Output Voltage
Adjustment
Minimum Load
Start Up Delay
Initial Set Accuracy
Drift
Line Regulation
Load Regulation
Ripple & Noise
Overvoltage
Protection
Overcurrent
Protection
Overtemperature
Protection
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See Tables
60-110% (60-105% for input of
36-40 VDC & 18-20 VDC)
No minimum load required
200 ms max (nom Vin & 100% load)
-3/+5% typically
±0.9% max
See Table
See Table
200-250 mV pk-pk depending on
model 20 MHz bandwidth
See Table recycle input to reset
Operates at >105% of rated current
auto recovery
Baseplate >+100 °C thermal protection
is activated & output voltage is
shutdown, after cooling recycle
input to reset
±0.03%/°C max
Compensates for 0.3 V line drop max,
when not used the remote sense
terminals must be connected locally
Negative logic L: (or short) ON,
H: (or open) OFF
(for positive logic add suffix ‘-R’ to
model number)
Switching Frequency •
Heatsinks
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Environmental
Operating
Temperature
Storage
Temperature
Humidity
Operating Altitude
Shock
Vibration
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-40 °C to +100 °C baseplate
-40 °C to +100 °C
20-95% RH non-condensing
9000 m
20 G, 11 ms once each
along X, Y & Z axis
5 G 10-55 Hz
3 mins period for 60 mins each
along X, Y & Z axis
EMC & Safety
Emissions
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EN55022 Level B conducted
EN55022 Level B radiated
External components required
Contact Sales for Application Note
EN61000-4-4 Level 2
EN61000-4-3 Level 3
EN61000-4-4 Level 3
EN61000-4-5 Level 3
UL1950, c-UL, EN60950
Temperature
Coefficient
Remote Sense
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Remote ON/OFF
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ESD Susceptibility
Radiated
Susceptibility
EFT/Burst
Surge
Safety Approvals
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www.xpplc.com
sales@xpplc.com
OUTPUT VOLTAGE & CURRENT RATINGS
Output
Voltage
1.8 V
2.5 V
3.3 V
5.0 V
12.0 V
15.0 V
24.0 V
28.0 V
1.8 V
2.5 V
3.3 V
5.0 V
12.0 V
15.0 V
24.0 V
28.0 V
1.8 V
2.5 V
3.3 V
5.0 V
12.0 V
15.0 V
24.0 V
28.0 V
Notes
Output
Current
11.7 A
11.7 A
11.7 A
10.0 A
4.2 A
3.4 A
2.1 A
1.8 A
23.4 A
23.4 A
23.4 A
20.0 A
8.4 A
6.7 A
4.2 A
3.6 A
35.0 A
35.0 A
35.0 A
30.0 A
16.7 A
13.4 A
8.4 A
7.2 A
OVP
Set Point
2.16-2.88 V
3.00-4.00 V
4.00 - 5.50 V
5.70 - 7.00 V
13.80 - 16.80 V
17.25 - 21.00 V
27.60 - 33.60 V
32.20 - 39.20 V
2.16 - 2.88 V
3.00 - 4.00 V
4.00 - 5.50 V
5.70 - 7.00 V
13.80 - 16.80 V
17.25 - 21.00 V
27.60 - 33.60 V
32.20 - 39.20 V
2.16-2.88 V
3.00 - 4.00 V
4.00 - 5.50 V
5.70 - 7.00 V
13.80 - 16.80 V
17.25 - 21.00 V
27.60 - 33.60 V
32.20 - 39.20 V
Regulation
Line
Load
10 mV 10 mV
10 mV 10 mV
10 mV 10 mV
10 mV 10 mV
24 mV 24 mV
30 mV 30 mV
48 mV 48 mV
56 mV 56 mV
10 mV 10 mV
10 mV 10 mV
10 mV 10 mV
10 mV 10 mV
24 mV 24 mV
30 mV 30 mV
48 mV 48 mV
56 mV 56 mV
10 mV 10 mV
10 mV 10 mV
10 mV 10 mV
10 mV 10 mV
24 mV 24 mV
30 mV 30 mV
48 mV 48 mV
56 mV 56 mV
Ripple & Noise
Pk-Pk
120 mV
120 mV
200 mV
200 mV
200 mV
200 mV
250 mV
250 mV
120 mV
120 mV
200 mV
200 mV
200 mV
200 mV
250 mV
250 mV
120 mV
120 mV
200 mV
200 mV
200 mV
200 mV
250 mV
250 mV
18-36 VDC IN
Efficiency Typ.
Model Number
71%
DCH5024S1V8
77%
DCH5024S2V5
79%
DCH5024S03
84%
DCH5024S05
88%
DCH5024S12
87%
DCH5024S15
87%
DCH5024S24
87%
DCH5024S28
71%
DCH10024S1V8
77%
DCH10024S2V5
79%
DCH10024S03
83%
DCH10024S05
88%
DCH10024S12
87%
DCH10024S15
87%
DCH10024S24
87%
DCH10024S28
70%
DCH20024S1V8
76%
DCH20024S2V5
79%
DCH20024S03
82%
DCH20024S05
87%
DCH20024S12
87%
DCH20024S15
87%
DCH20024S24
87%
DCH20024S28
DCH
36-76 VDC IN
Efficiency Typ.
Model Number
71%
DCH5048S1V8
77%
DCH5048S2V5
80%
DCH5048S03
85%
DCH5048S05
89%
DCH5048S12
88%
DCH5048S15
88%
DCH5048S24
88%
DCH5048S28
71%
DCH10048S1V8
77%
DCH10048S2V5
80%
DCH10048S03
84%
DCH10048S05
89%
DCH10048S12
88%
DCH10048S15
88%
DCH10048S24
88%
DCH10048S28
70%
DCH20048S1V8
76%
DCH20048S2V5
80%
DCH20048S03
83%
DCH20048S05
88%
DCH20048S12
88%
DCH20048S15
88%
DCH20048S24
88%
DCH20048S28
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1. Install an external capacitor Cin, with more than 33 µF, between +Vin and -Vin input pins for low line noise and for stable operation Tc= -20 °C to
+100 °C electrolytic or, Tc= -40 °C to +100 °C ceramic capacitor. When the line impedance is high or the input voltage rises quickly at start-up
(<10 µs), install a capacitor Cin between +Vin and -Vin input pins (within 50 mm from pins).
2. Full application notes available at www.xpplc.com, alternatively contact Technical Sales.
Mechanical Details
Derating
Use with conduction cooling (e.g. heat radiation by
conduction from the aluminium baseplate to the
attached heatsink).
NOTE:
Derating curve shown is based on the aluminum
baseplate temperature. In the hatched area, the
specification of ripple & noise is different from other
areas.
Connection For Standard Use
Baseplate Temperature : Tc = -20 °C to +100 °C
VOUT
3.3 V
5V
12 V
15 V
24 V
28 V
DCH50
2200
470
220
DCH100
2200
470
220
DCH200
2200
1000
470
Baseplate Temperature : Tc = -40 °C to +100 °C
VOUT
3.3 V
5V
12 V
15 V
24 V
28 V
DCH50
2200 x 2
470 x 2
220 x 2
DCH100
2200 x 2
470 x 2
220 x 2
DCH200
2200 x 2
1000 x 2
470 x 2
In order to use the converters, it is necessary to wire as shown.
Short the following pins to turn the power supply on.
-V in
RC, +V out
+ Sense, -V out
- Sense
C in : External capacitor on the input side >33 µF
Co : External capacitor on the output side - See Table
CY : Primary decoupling capacitor - >4700 pF
www.xpplc.com
sales@xpplc.com
Rev 3.1
TI Technology Forum
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