UHE Datasheet, PDF (5/16 Pages) Murata Manufacturing Co., Ltd. – Isolated, High Effi ciency, 1.6" × 2" 2-10 Amp, 12-30 Watt DC/DC Converters

Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted. ➀ ➁
Input
Input Voltage Range:
D12 Models (start up at 10V max.)
Q12 Models (start up at 10V max.)
D24 Models
Q48 Models
D48 Models
9-18 Volts (12V nominal)
9-36 Volts (24V nominal)
18-36 Volts (24V nominal)
18-75 Volts (48V nominal)
36-75 Volts (48V nominal)
Overvoltage Shutdown:
D12 Models
Q12/D24 Models
D48/Q48 Models
18.5-23 Volts
37-42 Volts
Not applicable
Start-Up Threshold: ➁
D12/Q12 Models
D24/Q48 Models
D48 Models
Undervoltage Shutdown: ➁
D12/Q12 Models
D24/Q48 Models
D48 Models
Input Current:
Normal Operating Conditions
Standby Mode (Off, OV, UV)
9.4-10 Volts
15.5-18 Volts
33.5-36 Volts
7.0-8.8 Volts
15-17 Volts
32-35.5 Volts
See Ordering Guide
5mA
Input Reflected Ripple Current ➂
2.5-10mAp-p
Input Filter Type
LC or Pi type
Reverse-Polarity Protection
Brief duration, 5A maximum
Remote On/Off Control (Pin 4): ➃
Positive Logic (Standard)
Negative Logic ("N" Suffix Models)
On = open, open collector, or to +15V
applied. IIN = 2.6mA max.
Off = pulled low to 0-0.8V. IIN = 2mA max.
On = pulled low to 0-0.8V. IIN = 6mA max.
Off = open, open collector or to +15V
applied. IIN = 1mA max.
Output
VOUT Accuracy (50% load):
Initial
Temperatue Coefficient
Extreme⁽⁵⁾
±1.5%
±0.02% per °C
±3%
Minimum Loading for Specification: ➁
Ripple/Noise (20MHz BW) ➀
No load
See Ordering Guide
Line/Load Regulation
See Ordering Guide
Efficiency
VOUT Trim Range⁽⁶⁾
See Ordering Guide
±5% minimum (±10% for T models)
Remote Sense Compensation ➁
±5%
Isolation Voltage:
Input-to-Output
1500Vdc minimum (BASIC)
Isolation Capacitance
Isolation Resistance
Current Limit Inception (@98%VOUT): ➆
10 Amp Models
7.5 Amp Models
5/6 Amp Models
2.5 Amp Models
2.0 Amp Models
650pF
100M:
12-15 Amps
8.2-11.5 Amps
6.5-8.5 Amps
2.6-4 Amps
2.1-3 Amps
Short Circuit Current (Hiccup)
1.5-2.3 Amps
UHE Series
Isolated, High Efficiency, 1.6" × 2"
2-10 Amp, 12-30 Watt DC/DC Converters
Overvoltage Protection:
1.2V Outputs
1.5V Outputs
1.8V Outputs
2.5V Outputs
3.3V Outputs
5V Outputs
12V Outputs
15V Outputs
Maximum Capacitive Loading:
(Low ESR capacitor)
Output
Magnetic feedback
1.5-2.1 Volts
1.8-2.4 Volts
2.2-2.8 Volts
2.8 to 3.2 Volts
4 to 4.8 Volts
6.1-7.5 Volts
12.7-13.5 Volts
15.8-16.2 Volts
10,000μF (1.2-5VOUT)
2,000μF (12-15VOUT)
Dynamic Characteristics
Dynamic Load Response:
(50-100% load step to ±3% VOUT)
Start-Up Time: ➇
VIN to VOUT and On/Off to VOUT
UHE-15/2000-Q12
Switching Frequency
200μsec maximum ➇
8msec typical
15msec maximum
30mS typ., 50mS max.
150-350kHz (model dependent)
Environmental
MTBF➈ UHE-12/2500-Q12
Operating Temperature (Ambient): ➉
(see Derating Curves)
5,885,546 hours
–40 to +85°C with Derating
Thermal Shutdown
Storage Temperature
Flammability
+115°C to +130°C
–55 to +125°C
UL 94 V-0
Physical
Dimensions
1.6" x 2" x 0.40" (40.64 x 50.8 x 10.16mm)
Case Material
Diallyl Phthalate
Pin Material
Gold-plated copper alloy
Weight
1.51 ounces (46.9 grams)
Primary to Secondary Insulation Level Basic
➀ All models are tested and specified with a single, external, 0.47μF, multi-layer ceramic output
capacitor and no external input capacitors, unless otherwise noted. All models will effectively
regulate under no-load conditions (with perhaps a slight increase in output ripple/noise).
➁ See Technical Notes/Performance Curves for additional explanations and details.
➂ Input Ripple Current is tested/specified over a 5-20MHz bandwidth with an external 33μF input
capacitor and a simulated source impedance of 220μF and 12μH. See I/O Filtering, Input Ripple
Current and Output Noise for details.
➃ The On/Off Control is designed to be driven with open-collector (or equivalent) logic or the applica-
tion of appropriate voltages (referenced to –Input (pin 2)). Applying a voltage to the On/Off Control
pin when no input voltage is applied to the converter can cause permanent damage. See Remote
On/Off Control for more details.
➄ Extreme Accuracy refers to the accuracy of either trimmed or untrimmed output voltages over all
normal operating ranges and combinations of input voltage, output load and temperature.
➅ Tie the Output Trim pin (pin 9) to +Output (pin 6) for maximum trim down or to –Output (Output
Return/Common, pin 7) for maximum trim up. See Output Trimming for detailed trim equations.
➆ The Current-Limit-Inception point is the output current level at which the converter's power-limiting
circuitry drops the output voltage 2% from its initial value. See Output Current Limiting and
Short-Circuit Protection for more details.
➇ For Start-Up-Time specifications, output settling time is defined as the output voltage having
reached ±1% of its final value at maximum load current.
➈ MTBF’s are calculated using TELCORDIA SR-332 Method 1 Case, ground fixed, +25°C ambient air
and full-load conditions. Contact MPS for demonstrated life-test data.
➉ All models are fully operational and meet all published specifications, including "cold start," at –40°C.
Use only as much output filtering as needed and no more. Larger caps (especially low-ESR ceramic
types) may slow transient response or degrade dynamic performance. Thoroughly test your system
with all components installed.
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MDC_UHE_12-30W Series.C01 Page 5 of 16