1100
-
2100
W
ATT
MBH
SERIES
DC/DC CONVERTERS
2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales @calex.com
6/10/15, eco 160224-3, 180206-1
Features
●
Delivers up to 2100 Watts
●
Efficiency up to 97%
●
Groundbreaking low profile compact 9.0”L x 6.5”W
x 1.25”H package
●
Only 3.3 lbs
●
No minimum load required
●
Fixed frequency operation at 400 kHz
●
Fully protected (OTP, OCP, OVP, UVLO)
●
Auto Recovery
●
Input reverse polarity protection
●
High Reliability
●
Made in USA
●
5 Year Warranty
Description
The Calex 2100 Watt MBH DC/DC Converter series are
high efficiency non-isolated dc/dc switched-mode single
output converters specifically designed for both military
and commercial mobile applications. This series is
packaged in an unprecedented low profile 9.0”L x 6.5”W
x 1.25”H mechanically enclosed package weighing only
3.3lbs making the unit ideal for harsh shock and vibration
environments. The MBH series integrates high efficiency
dc/dc converters with input transient and reverse polarity
protection circuitry. The DC/DC Converters are designed
with a wide operational temperature range and are well
suited for a high temperature environment.
The MBH Series DC/DC converter’s high efficiency and
high power density are accomplished through the use
of high-efficiency synchronous rectification technology,
advanced electronic circuitry, packaging and thermal
design resulting in highly reliable product. The MBH
series operates at a fixed switching frequency and
follows conservative component de-rating guidelines.
The converter is designed and manufactured in the USA
and is backed by Calex’s 5 year warranty.
1. Designed to meet MIL-STD-810G for functional shock
and vibration. The unit must be properly secured to the
interface medium (PCB/Chassis) by use of the mounting
holes of the unit.
Model
Input Range
VDC
Vout
VDC
Iout
ADC
Min Max
13S28.40MBH 10 16 28 40
13S28.60MBH 10 16 28 60
13S28.75MBH 10 16 28 75
1100
-
2100
W
ATT
MBH
SERIES
DC/DC CONVERTERS
2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales @calex.com
6/10/15, eco 160224-3, 180206-1
ON/OFF FUNCTION:
There are two connectors J900 and J901 that are used to implement the ON/OFF function.
Connector J900 has three contacts: BAT+, ON/OFF and BAT-. BAT+ is connected to the voltage after the
input reverse protections circuit: without input power present there is a diode between +12Vin DC (Terminal
T1) and BAT+. BAT- is internally connected to GND (Terminal T2). It is provided if two wire connections is
used for ON/OFF.
Connector J901 has three pins: GND (pin1), ON/OFF (pin 2) and PULL-UP (pin 3). PULL-UP pin is connected
via a 7.5K resistor to BAT+.
There are several ways to enable and disable the converter via connectors J900 and J901.
Connector J901 with no jumper:
To enable converter voltage needs to be applied across ON/OFF pin and BAT- pin of J900 connector, or
ON/OFF pin is connected to BAT+ pin.
To disable converter the ON/OFF pin is connected to BAT- pin of J900 or left open.
Connector J901 with jumper:
Jumper between pin 1 and pin 2 – converter is disabled and ON/OFF pin is shorted to GND. DO NOT use
J900!
Jumper between pin 2 and pin 3 – converter is enabled when J900 is not used, i.e ON/OFF pin of J900 is left
open or connected to BAT+ pin. Converter is disabled when the ON/OFF pin is connected to BAT- pin on
J900.
Figure 2. Input terminals and ON/OFF connector J900
Figure 3. Output Terminals
1100
-
2100
W
ATT
MBH
SERIES
DC/DC CONVERTERS
2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales @calex.com
6/10/15, eco 160224-3, 180206-1
13S28.40MBH Specifications
Conditions: TA=25ºC, VIN = 12VDC, unless otherwise noted; not required to operate below 10V.
Input Parameter Conditions Min Typ Max Units
Absolute Maximum Ratings
Input Voltage VDC
Non-Operating Protected from reverse polarity on the input terminals -20 30 VDC
Operating 10 16 VDC
Voltage at ON/OFF input pin 0 30 VDC
Input Characteristics
Operating Input Voltage Range 10 13.2 16 VDC
Maximum Input Current
PO = 1100W @ 10VDC in
115 118 A
Start-up Voltage
VIN
9.5 VDC
Shut Down Voltage
VIN
9.0 VDC
Input Stand-by Current
VIN = 12V, converter disabled
1.25 3 mA
Input No load Current
VIN = 12V, converter enabled
1.25 1.5 A
Output Parameter Conditions Min Typ Max Units
Output Characteristics
Output Voltage Set Point
VIN = 12V, IO = 30.5A
28.0 28.5 30.0 VDC
Output Regulation
Over Line and Load
±80
±120
mV
Total Output Voltage Range Over sample, line, load, temperature & life 27.6 29.3 VDC
Output Voltage Ripple and Noise
Peak to Peak
RMS
20MHz Bandwidth, 10 µF tantalum + 1 µF ceramic
Full Load Resistive
Full Load Resistive
300
60
500
100
mVP-P
mVRMS
Operating Output Current Range 0 40 A
Output DC Current Limit Inception Non-Latching 44 48 56 A
Output DC Current Limit Shutdown Output Voltage at which converter shuts down 22 VDC
Peak Short-Circuit Current Non-Latching, Startup into 10mΩ 75 ADC
Peak Short-Circuit Pulse Duration Non-Latching, Startup into Short 16 ms
RMS Short-Circuit Current Non-Latching, Startup into Short TBD ARMS
Dynamic Response
Load Change 20A - 36A - 20A VS=12V, Di/Dt=0.1 a/µs, 6ft. input cable AWG 1/0, 6 ft load cable ±1.9 VDC
Load Change 20A - 36A - 20A VS=12V, Di/Dt=0.1 a/µs, 20ft. input cable AWG 1/0, 6 ft load cable ±2.3 VDC
Load Change 20A - 36A - 20A VS=13.2V, Di/Dt=0.1 a/µs, 6ft. input cable AWG 1/0, 6 ft load cable ±2 VDC
* See Note 2 below for definition of Vs
* See Note 4 for further cable length considerations and dynamic
response
Setting Time To within 1% Vout nom 500 1000 µs
Output Over-Voltage Protection Non-Latching 32.7 34.8 37 VDC
Efficiency
100% Load
50% Load
96
96.55
%
%
Note 1: Input and output voltages are measured at input and output terminals of the converter
Note 2: Vs - voltage at external power supply used for testing. VIN < Vs due to voltage drop in input cable.
Note 3: All protections are non-latching. Once protection (OVP, OCP, input UVLO) are tripped converter enters into auto restart mode with
500 ms off time.
Note 4: Consult the factory for input cable length and Dynamic Response requirements that differ from the conditions specified above. Some
vehicle applications for DC/DC converters may require cable lengths of up to 30 feet. In such cases the voltage drop caused b y cable
resistance (steady state) and cable inductance during transients must be accounted for to ensure stable operation of the DC/DC
converter. In such cases where additional external capacitance is required for stable operation, it is recommended to add the external
capacitance to the load side of the converter, as this is where most of the transients occur.
1100
-
2100
W
ATT
MBH
SERIES
DC/DC CONVERTERS
2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales @calex.com
6/10/15, eco 160224-3, 180206-1
13S28.60MBH Specifications
Conditions: Ta=25ºC, Vin = 12VDC, unless otherwise noted; not required to operate below 10V.
Input Parameter Conditions Min Typ Max Units
Absolute Maximum Ratings
Input Voltage VDC
Non-Operating Protected from reverse polarity on the input terminals -20 30 VDC
Operating 10 16 VDC
Voltage at ON/OFF input pin 0 30 VDC
Input Characteristics
Operating Input Voltage Range 10 13.2 16 VDC
Maximum Input Current
PO = 1700W @ 10VDC in
176 180 A
Start-up Voltage
VIN
9.5 VDC
Shut Down Voltage
VIN
9.0 VDC
Input Stand-by Current
VIN = 12V, converter disabled
1.25 3 mA
Input No load Current
VIN = 12V, converter enabled
1.25 1.5 A
Output Parameter Conditions Min Typ Max Units
Output Characteristics
Output Voltage Set Point
VIN = 12V, IO = 30.5A
28.0 28.5 30.0 VDC
Output Regulation
Over Line and Load
±80
±120
mV
Total Output Voltage Range Over sample, line, load, temperature & life 27.6 29.3 VDC
Output Voltage Ripple and Noise
Peak to Peak
RMS
20MHz Bandwidth, 10 µF tantalum + 1 µF ceramic
Full Load Resistive
Full Load Resistive
300
60
500
100
mVP-P
mVRMS
Operating Output Current Range 0 60 A
Output DC Current Limit Inception Non-Latching 66 72 84 A
Output DC Current Limit Shutdown Output Voltage at which converter shuts down 22 VDC
Peak Short-Circuit Current Non-Latching, Startup into 10mΩ 112 ADC
Peak Short-Circuit Pulse Duration Non-Latching, Startup into Short 16 ms
RMS Short-Circuit Current Non-Latching, Startup into Short TBD ARMS
Dynamic Response
Load Change 30A - 54A - 30A VS=12V, Di/Dt=0.1 a/µs, 6ft. input cable AWG 1/0, 6 ft load cable ±1.9 VDC
Load Change 30A - 54A - 30A VS=12V, Di/Dt=0.1 a/µs, 20ft. input cable AWG 1/0, 6 ft load cable ±2.3 VDC
Load Change 30A - 54A - 30A VS=13.2V, Di/Dt=0.1 a/µs, 6ft. input cable AWG 1/0, 6 ft load cable ±2 VDC
* See Note 2 below for definition of Vs
* See Note 4 for further cable length considerations and dynamic
response
Setting Time To within 1% Vout nom 500 1000 µs
Output Over-Voltage Protection Non-Latching 32.7 34.8 37 VDC
Efficiency
100% Load
50% Load
96.5
97.0
%
%
Note 1: Input and output voltages are measured at input and output terminals of the converter
Note 2: Vs - voltage at external power supply used for testing. VIN < VS due to voltage drop in input cable.
Note 3: All protections are non-latching. Once protection (OVP, OCP, input UVLO) are tripped converter enters into auto restart mode with
500 ms off time.
Note 4: Consult the factory for input cable length and Dynamic Response requirements that differ from the conditions specified above. Some
vehicle applications for DC/DC converters may require cable lengths of up to 30 feet. In such cases the voltage drop caused b y cable
resistance (steady state) and cable inductance during transients must be accounted for to ensure stable operation of the DC/DC
converter. In such cases where additional external capacitance is required for stable operation, it is recommended to add the external
capacitance to the load side of the converter, as this is where most of the transients occur.
1100
-
2100
W
ATT
MBH
SERIES
DC/DC CONVERTERS
2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales @calex.com
6/10/15, eco 160224-3, 180206-1
13S28.75MBH Specifications
Conditions: Ta=25ºC, Vin = 12VDC, unless otherwise noted; not required to operate below 10V.
Input Parameter Conditions Min Typ Max Units
Absolute Maximum Ratings
Input Voltage VDC
Non-Operating Protected from reverse polarity on the input terminals -20 30 VDC
Operating 10 16 VDC
Voltage at ON/OFF input pin 0 30 VDC
Input Characteristics
Operating Input Voltage Range 10 13.2 16 VDC
Maximum Input Current
PO = 2100W @ 10VDC in
223 227 A
Start-up Voltage
VIN
9.5 VDC
Shut Down Voltage
VIN
9.0 VDC
Input Stand-by Current
VIN = 12V, converter disabled
1.25 3 mA
Input No load Current
VIN = 12V, converter enabled
1.25 1.5 A
Output Parameter Conditions Min Typ Max Units
Output Characteristics
Output Voltage Set Point
VIN = 12V, IO = 30.5A
28.0 28.5 30.0 VDC
Output Regulation
Over Line and Load
±80
±120
mV
Total Output Voltage Range Over sample, line, load, temperature & life 27.6 29.3 VDC
Output Voltage Ripple and Noise
Peak to Peak
RMS
20MHz Bandwidth, 10 µF tantalum + 1 µF ceramic
Full Load Resistive
Full Load Resistive
300
60
500
100
mVP-P
mVRMS
Operating Output Current Range 0 75 A
Output DC Current Limit Inception Non-Latching 83 90 105 A
Output DC Current Limit Shutdown Output Voltage at which converter shuts down 22 VDC
Peak Short-Circuit Current Non-Latching, Startup into 10mΩ 140 ADC
Peak Short-Circuit Pulse Duration Non-Latching, Startup into Short 16 ms
RMS Short-Circuit Current Non-Latching, Startup into Short 15 Arms
Dynamic Response
Load Change 37.5A - 67.5A - 37.5A VS=12V, Di/Dt=0.1 a/µs, 6ft. input cable AWG 1/0, 6 ft load cable ±1.9 VDC
Load Change 37.5A - 67.5A - 37.5A VS=12V, Di/Dt=0.1 a/µs, 20ft. input cable AWG 1/0, 6 ft load cable ±2.3 VDC
Load Change 37.5A - 67.5A - 37.5A VS=13.2V, Di/Dt=0.1 a/µs, 6ft. input cable AWG 1/0, 6 ft load cable ±2 VDC
* See Note 2 below for definition of Vs
* See Note 4 for further cable length considerations and dynamic
response
Setting Time To within 1% Vout nom 500 1000 µs
Output Over-Voltage Protection Non-Latching 32.7 34.8 37 VDC
Efficiency
100% Load
50% Load
96.0
96.8
%
%
Note 1: Input and output voltages are measured at input and output terminals of the converter
Note 2: Vs - voltage at external power supply used for testing. VIN < VS due to voltage drop in input cable.
Note 3: All protections are non-latching. Once protection (OVP, OCP, input UVLO) are tripped converter enters into auto restart mode with
500 ms off time.
Note 4: Consult the factory for input cable length and Dynamic Response requirements that differ from the conditions specified above. Some
vehicle applications for DC/DC converters may require cable lengths of up to 30 feet. In such cases the voltage drop caused b y cable
resistance (steady state) and cable inductance during transients must be accounted for to ensure stable operation of the DC/DC
converter. In such cases where additional external capacitance is required for stable operation, it is recommended to add the external
capacitance to the load side of the converter, as this is where most of the transients occur.
1100
-
2100
W
ATT
MBH
SERIES
DC/DC CONVERTERS
2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales @calex.com
6/10/15, eco 160224-3, 180206-1
General Specifications
Parameter Conditions Min Typ Max Units
Switching Frequency 400 KHz
ON/OFF Control
Converter ON
Converter OFF
Voltage at ON/OFF pin
Voltage at ON/OFF pin
8
0
12
16
1.8
VDC
VDC
Turn-on Time
From ON/OFF Control Time from ON/OFF going high to Vo=90%Vout(NOM), Full
Load (Resistive mode) 500 530 560 ms
By Input Voltage (ON/OFF=Vin)
Time from Vin reaching UVLO threshold to Vo=90%
V
out
(NOM), Full Load (Resistive mode)
500 530 560 ms
Output Voltage Rise Time
Time from 10% to 90%
V
out
(NOM)
12 ms
Over Temperature Shutdown - OTP
Base Plate Temperature
Non-Latching
100
ºC
OTP Restart Hysteresis Measured on the PCB 10 ºC
Auto Restart Period 500 ms
Operating Surge Protection 100ms transient with 1msec rise time 30 VDC
Operating Temperature At the top thermal interface Base Plate temperature -40 95 ºC
Non-operating Temperature Ambient Storage Temperature -55 100 ºC
Connection Stud Torque TBD in lbs
Shock and Vibration Designed to meet MIL-STD-810G for functional shock and vibration.
Note 1: Input and output voltages are measured at input and output terminals of the converter
Note 2: Vs - voltage at external power supply used for testing. Vin < Vs due to voltage drop in input cable.
Note 3: All protections are non-latching. Once protection (OVP, OCP, input UVLO) are tripped converter enters into auto restart mode with
500 ms off time.
Curve for 13S28.75MBH Curve for 13S28.75MBH
