HEN-1.5/25-D12M-C Murata Power Solutions Inc, HEN-1.5/25-D12M-C Datasheet - Page 3

• Manufacturer Part Number: HEN-1.5/25-D12M-C
• Description: DC/DC Converters & Regulators 37.5W 12V-1.5V 25A Eighth-Brick
• Manufacturer: Murata Power Solutions Inc
• Series: HENr

Specifications of HEN-1.5/25-D12M-C

• Output Power: 38 W
• Input Voltage Range: 10.2 V to 13.8 V
• Number Of Outputs: 1
• Output Voltage (channel 1): 1.5 V
• Output Current (channel 1): 25 A
• Package / Case Size: Eighth Brick
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: HEN-1.5/25-D12M-C

Performance/Functional Specifications
Typical @ T
Input Voltage Range
Input Current:
Input Reflected Ripple Current
Input Filter Type
Overvoltage Protection
Reverse-Polarity Protection
Undervoltage Shutdown
No-Load Input Current
Remote On/Off Control:
Remote Control On/Off Current
Remote Sense Input Range
V
Minimum Loading
Maximum Output Power
Maximum Capacitive Loading
V
Ripple/Noise (20MHz BW)
Total Accuracy
Temperature Coefficient at All Outputs ±0.02%/°C
Efficiency
Overcurrent Detection and Short-Circuit Protection:
Transient Response:
Start-Up Time:
Switching Frequency
Calculated MTBF
Operating Temperature:
Storage Temperature Range
Thermal Protection Shutdown
Relative Humidity
Dimensions
Pin Material
Weight
Flamability Rating
Electromagnetic Interference
(may need external filter)
Safety
OUT
OUT
Normal Operating Conditions
Inrush Transient
Standby/Off Mode
Output Short-Circuit Condition
Current-Limiting Detection
Short-Circuit Protection Method
Short-Circuit Current
Short-Circuit Duration
(50-100% load step to±1.5%V
V
IN
Trim Range
Accuracy (50% load)
to V
OUT
A
= +25°C under nominal line voltage and full-load conditions unless noted.
or On/Off to V
OUT
Dynamic Characteristics
OUT
Environmental
)
Physical
Output
Input
10.2-13.8 Volts (12V nominal)
See Ordering Guide
0.04A
41mA
250mA
25mAp-p
Capacitive
14.3 Volts
None
9.5 Volts
160mA
On = open (internal pull down), 0 to +0.8V
Off = +2.5V to +V
0.75mA maximum
±10% of V
±1.5%
No minimum load
30.45W (1.2V), 38.06W (1.5V models)
40,000μF (electrolytic, ESR <10mΩ)
±5%
See Ordering Guide
±3% over line, load and temperature
See Ordering Guide
42 Amps, cold startup (35A after warmup)
Hiccup with auto recovery
2.5A, 4A maximum average
Continuous, output shorted to ground
30μsec typical, 60μsec maximum
10msec maximum for V
660kHz ±10%
TBD million hours
–40 to +85°C with derating
–55 to +125°C
+119°C
To 85% / +85°C non-condensing
See Mechanical Specifications
Gold-plated copper alloy with nickel
0.6 ounces (17g)
UL94V-0
Conducted and radiated to FCC part
Designed to meet UL/cUL/IEC/EN 60950-1,
CSA-C22.2 No. 60950-1
2
sec maximum
underplate
EN55022 Class A
OUT
www.murata-ps.com
IN
or pulled high
OUT
= nominal
Return Current Paths
The HEN D12 are non-isolated DC/DC converters. Their Common pins (pins
1, 6 and 8) are connected to each other internally (see Figure 1). To the
extent possible (with the intent of minimizing ground loops), input return
current should be directed through pin 1 (also referred to as –Input or Input
Return), and output return current should be directed through pin 6 and 8
(also referred to as –Output or Output Return). Any on/off control signals
applied to pin 4 (On/Off Control) should be referenced to Common
(specifically pin 1).
I/O Filtering and Noise Reduction
All models in the HEN D12 Series are tested and specified with external
33μF tantalum input and output capacitors. These capacitors are necessary
to accommodate our test equipment and may not be required to achieve
desired performance in your application. The HEN D12's are designed with
high-quality, high-performance internal I/O caps, and will operate within
spec in most applications with no additional external components.
In particular, the HEN D12's input capacitors are specified for low ESR and
are fully rated to handle the units' input ripple currents. Similarly, the inter-
nal output capacitors are specified for low ESR and full-range frequency
response. As shown in the Performance Curves, removal of the external
33μF tantalum output caps has minimal effect on output noise.
In critical applications, input/output ripple/noise may be further reduced
using filtering techniques, the simplest being the installation of external I/O
caps.
All models are tested and specified with an external 33μF tantalum input capacitor and
Input Ripple Current is specified with no external filter.
Current Limit Inception is given at either cold startup or after warmup.
MTBF is calculated using Telcordia (Bellcore) SR-332, Method 1, Case 3, ground-fixed
The On/Off Control (pin 4) may be driven with open-collector logic or the application of
The short circuit current is an average which includes brief, full-current hiccup pulses.
Startup inrush current should be used to compute proper external fusing, if installed. The
V
See Technical Notes.
See note 6, page 2.
T E C H N I C A L N O T E S
These are stress ratings. Exposure of devices to any of these conditions may adversely
affect long-term reliability. Proper operation under conditions other than those listed in the
Performance/Functional Specifications Table is not implied or recommended.
3000μF POSCAP and 300μF ceramic external output capacitors except where noted.
These capacitors are necessary to accommodate our test equipment and may not be
required to achieve specified performance in your applications. All models are stable and
regulate within spec under no-load conditions.
conditions, T
appropriate voltages (referenced to Common, pin 1).
fuse rating will depend on the fuse thermal time constant ("slow blow"), and other factors.
Input Voltage:
On/Off Control (Pin 4)
Input Reverse-Polarity Protection
Output Overvoltage Protection
Output Current
Storage Temperature
Lead Temperature (soldering, 10 sec.)
OUT
times I
Continuous
Transient (100msec maximum)
Single Output, Non Isolated, 12VIN, 0.8-5VOUT
OUT
CASE
must not exceed maximum power.
= +25°C, full load, natural convection, +67°C maximum pcb temperature.
Technical enquiries email: [e-mail], tel:
25 Amp, High di/dt DC/DC Converters
Absolute Maximum Ratings
HEN D12 Models
14 Volts
15 Volts
+V
None
V
Current limited. Devices can
withstand sustained output short
circuit without damage.
–55 to +125°C
+280°C (Refer to Solder Profile)
OUT
IN
+20%
MDC_HEN-D12.B01 Page 3 of 11
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