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2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com
ECO # 1/27/12, 151005-3, 160307-1
150 WATT HCM CHASSIS MOUNT
DC/DC CONVERTERS
Features
• 4:1 Input voltage range
• High power density
• Chassis Mount design for excellent thermal performance
• Terminal blocks for ease of use
• Volt-seconds clamp and fast over voltage
protection
• Pulse-by-pulse current limiting, short circuit
frequency foldback, dead short shut down
• Over-temperature protection
• Auto-softstart
• Low noise
• Constant frequency during normal operation
• Remote sense
• Remote ON/OFF
• Super energy saving, 8 mA input idle current
• Output trim with very low temperature coefcient
• Good shock and vibration damping
• Available in both RoHS and Non-RoHS construction.
See ordering info below model selection chart.
Selection Chart
Model
Input Range
VDC
Iin
ADC Vout
VDC
Iout
ADC
Min Max TYP
24S3.30HCM 9 36 5.00 3.3 30
24S5.30HCM 9 36 7.80 5 30
24S12.12HCM 9 36 7.18 12 12.5
24S15.10HCM 9 36 7.10 15 10
24S24.6HCM 9 36 7.10 24 6.26
48S3.30HCM 18 75 2.45 3.3 30
48S5.30HCM 18 75 3.60 5 30
48S12.12HCM 18 75 3.57 12 12.5
48S15.10HCM 18 75 3.50 15 10
48S24.6HCM 18 75 3.50 24 6.26
The 4:1 Input Voltage 150 W single HCM Series of DC/DC
converters provide precisely regulated dc outputs. The
output voltage is fully isolated from the input, allowing the
output to be positive or negative polarity and with various
ground connections. The HCM Series meets the most
rigorous performance standards in the industry standard
case size for data communications and process control
applications.
The 4:1 Input Voltage 150 Watt HCM Series includes
remote sensing, output trim, and remote ON/OFF.
Through holes are provided to allow easy mounting or
add a heat sink for extended temperature use. Integrated
terminal blocks allow for easy connectivity. An optional
DIN Rail Adapter is available for DIN Rail Mounting the
HCM. See Selection Chart for ordering information.
Description
To order with optional DIN Rail Mount specify part number
followed by -DIN. i.e. 24S3.30HCM-DIN.
To order RoHS, add (RoHS) to part number.
A thermal management device, such as a heat sink is required to
ensure proper operation of this device. The thermal management
medium is required to maintain baseplate temperature < 100ºC
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2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com
ECO # 1/27/12, 151005-3, 160307-1
150 WATT HCM CHASSIS MOUNT
DC/DC CONVERTERS
Input Parameters
Model 24S3.30HCM 24S5.30HCM 24S12.12HCM 24S15.10HCM 24S24.6HCM Units
Voltage Range
MIN
TYP
MAX
9
24
36
V
Input Overvoltage (100 ms) MAX 50 V
Input Ripple Rejection (120Hz) TYP 60 dB
Undervoltage Lockout Yes
Input Reverse Voltage Protection Yes
Input Current No Load
100% Load
TYP
TYP
35
5.0
35
7.26
35
7.18
35
7.10
35
7.10
mA
A
Inrush Current MAX 0.5 A2s
Reected Ripple, 12µH
Source Impedance (3) TYP 30 mA p-p
Efciency TYP 78 80 85 86 86 %
Switching Frequency TYP 260 kHz
Recommended Fuse (2) A
Input Parameters
Model 48S3.30HCM 48S5.30HCM 48S12.12HCM 48S15.10HCM 48S24.6HCM Units
Voltage Range
MIN
TYP
MAX
18
48
75
V
Input Overvoltage (100 ms) MAX 80 V
Input Ripple Rejection (120Hz) TYP 60 dB
Undervoltage Lockout Yes
Input Reverse Voltage Protection Yes
Input Current No Load
100% Load
TYP
TYP
25
2.45
25
3.60
25
3.57
25
3.50
25
3.50
mA
A
Inrush Current MAX 0.5 A2s
Reected Ripple, 12µH
Source Impedance (3) TYP 30 mA p-p
Efciency TYP 81 85 88 88 89 %
Switching Frequency TYP 260 kHz
Recommended Fuse (2) A
Unless otherwise stated, these specications apply for case temperature Tc=25±2ºc, nominal input voltage, and rated full load. (1)
* Absolute Maximum Ratings. Caution: Stresses in excess of the Absolute Maximum Ratings can cause permanent damage to the device (see Note 1.)
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2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com
ECO # 1/27/12, 151005-3, 160307-1
150 WATT HCM CHASSIS MOUNT
DC/DC CONVERTERS
Output Parameters
Model 24S3.30HCM
48S3.30HCM
24S5.30HCM
48S5.30HCM
24S12.12HCM
48S12.12HCM
24S15.10HCM
48S15.10HCM
24S24.6HCM
48S24.6HCM
Units
Output Voltage 3.3 5 12 15 24 V
Output Voltage
Setpoint Accuracy MAX ±1 %
Turn On Overshoot Min-Max Load TYP 0 %
Temperature Coefcient TYP
MAX
0.005
0.01
0.003
0.005
0.003
0.005
0.003
0.005
0.003
0.005 %/ºC
Noise (8) TYP
TYP
75
20
75
20
150
60
150
60
250
100
mV p-p
mV rms
Load Current (4) MIN
MAX
3
30
3
30
1.25
12.5
1
10
0.626
6.26 A
Load Transient Overshoot (7) TYP 3 %
Load Transient Recovery Time (6) TYP 200 µs
Load Regulation (5)
Min-Max Load
TYP
MAX
0.02
0.2 %
Line Regulation
Vin = Min-Max
TYP
MAX
0.01
0.1 %
Overvoltage Protection (OVP)
Threshhold
OVP Type - Non-latching
Open Loop Overvoltage Clamp
MIN
MAX
115
135 %
Output Current Limit
Vout = 90% of Vout-nom TYP 120 %
Output Short Circuit Current
Vout = 0.25V
TYP
MAX
140
150 %
Notes:
(1) Refer to the CALEX Application Notes for the denition of terms,
measurement circuits, and other information.
(2) Refer to the CALEX Application Notes for information of fusing.
For inrush current, refer to the specications above.
(3) 100µF capacitor connected between the two “Input” terminals.
Then insert current sensor in series with 1.0µH inductor between
100µF and the source. The reected ripple current is measured
over a 5 Hz to 20 MHz bandwidth. (current sensor is located
between the converter input terminal and the 1.0 µH inductor)
(4) Optimum performance is obtained when this power supply is
operated within the minimum to maximum load specications.
No damage to the module will occur when the output is operated
at less than minimum load, however, below minimum load the
dynamic response will degrade. Operation below minimum load
is not recommended.
(5) Load Regulation is dened as the output voltage change when
changing load current from a maximum to minimum.
(6) Load Transient Recovery Time is dened as the time for the
output to settle from a 50% to 75% step load change to a 1%
error band (rise time of step = 2µs).
(7) Load Transient Overshoot is dened as the peak overshoot
during a transient as dened in the Note 6 above.
(8) Noise is measured per the CALEX Application Notes. Output
noise is measured with a 10µF tantalum capacitor in parallel
with a 0.1µF ceramic capacitor connected across the output
terminals. Measurement bandwidth is 0-20MHz.
(9) When an external ON/OFF switch is used, such as open collector
switch, logic high requires the switch to be high-impedance.
Switch leakage currents greater than 10µA may be sufcient to
trigger the ON/OFF to the logic-low state.
(10) Most switches would be suitable for the logic ON/OFF control. In
case there is a problem you can make the following estimations and
then leave some margin.
When open collector is used for logic high, “Open Circuit Voltage
at ON/OFF Terminal”, “Output Resistance” and “External Leakage
Current Allowed for Logic High” are used to estimate the high
impedance requirement of open collector.
When switch is used for logic low, “Open Circuit Voltage at
ON/OFF Terminal”, “Output Resistance” and “LOW Logic Level” are
used to estimate the low impedance requirement of the switch.
(11) Do not immerse in liquid. Converters are not hermetically sealed.
(12) Input impedance on these units needs to be kept to a minimum. The
9-36Vdc DC units need a maximum input impedance of 0.135 Ohms
and the 18-75Vdc DC units need a maximum input impedance of
0.54 Ohms. In order to support this requirement, the 9-36Vdc DC
units need 55 µF of capacitance (low ESR) for every 1.0 µH of
inductance between the power source and the DC/DC converter.
The 18-75Vdc DC units need 3.5µF of capacitance (low ESR) for
every 1.0 µH of inductance between the power source and the
DC/DC converter. Inductance includes all sources and should take
into account input power lines.
(13) Specications subject to change without notice.
(14) RoHS Compliance:
See Calex Website www.calex.com/RoHS.html for the complete
RoHS Compliance statement.
The RoHS marking is as follows.
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2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com
ECO # 1/27/12, 151005-3, 160307-1
150 WATT HCM CHASSIS MOUNT
DC/DC CONVERTERS
General Specications
All Models Units
ON/OFF Function
HIGH Logic Level or Leave
ON/OFF Terminal Open MIN 3.0 VDC
External Leakage Current
Allowed for Logic High (9) MAX 10 µA
Input Diode Protection Voltage MAX 50 VDC
LOW Logic Level or Tie
ON/OFF Terminal to -INPUT MAX 1.0 VDC
Sinking Current for Logic Low MAX 500 µA
Open Circuit Voltage at ON/
OFF Terminal (10) TYP 2.3 VDC
Output Resistance TYP 3 k Ω
Idle Current
(Module is OFF) TYP 8 mADC
Turn-on Time to 1% error TYP 60 ms
Logic HIGH - Module ON
LOW - Module OFF
Output Voltage Remote Sensing
Maximum Voltage Drops on
Leads MAX 10 %
Line Regulation under remote
sensing
TYP
MAX
0.02
0.1 %
Load Regulation under remote
sensing
TYP
MAX
0.05
0.2 %
Output Voltage Trim
Trim Range MIN
MAX
-10
+10 % of Vout
Input Resistance TYP 10 kΩ
Open Circuit Voltage TYP 2.5 V
Trim Limit
Maximum Output Voltage MAX 110 % of Vout
Isolation
Input to Output Isolation 10µA
Leakage
Vnom = 24V
Vnom = 48V
MAX
MAX
700
1544
VDC
VDC
Input to Output Resistance MIN 10 MΩ
Input to Output Capacitance TYP 1600 pF
Environmental
Calculated MTBF, Bellcore
Method 1, Case 1 >1,000,000 h
Case Operating Temperature
Range
MIN
MAX
-40
100 ºC
Storage Temperature MIN
MAX
-40
120 ºC
Thermal Impedance TYP 3 ºC/W
Thermal Shutdown
Case
Temperature (Auto Restart)
MIN
TYP
100
110 ºC
General
Unit Weight
with -DIN Option TYP 13.28 oz (378 gm)
13.92 oz (396 gm)
Case Dimension 4.3” x3.2” x1.0”
Agency Approvals:
UL IEC 60950-1 and EN60950-1
Tolerance All dimensions are typical in inches (mm) unless
otherwise noted:
Tolerance: x.xx in ±0.02 in (x.x mm ±0.5 mm)
Terminal No. Function Terminal No. Function
1 +Input 6 -Output
2 On/Off 7 -Sense
3 N/C 8 Trim
4 Case 9 +Sense
5 -Input 10 +Output
Optional Din Mount