UHE Series

Isolated, High Efficiency, 1.6" × 2"

2-10 Amp, 12-30 Watt DC/DC Converters

MDC_UHE_12-30W Series.C01 Page 5 of 16

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Output

Overvoltage Protection:

Magnetic feedback

1.2V Outputs

1.5-2.1 Volts

1.5V Outputs

1.8-2.4 Volts

1.8V Outputs

2.2-2.8 Volts

2.5V Outputs

2.8 to 3.2 Volts

3.3V Outputs

4 to 4.8 Volts

5V Outputs

6.1-7.5 Volts

12V Outputs

12.7-13.5 Volts

15V Outputs

15.8-16.2 Volts

Maximum Capacitive Loading:

(Low ESR capacitor)

Dynamic Characteristics

Dynamic Load Response:

200μsec maximum

➇

Start-Up Time:

➇

8msec typical

15msec maximum

UHE-15/2000-Q12

30mS typ., 50mS max.

Switching Frequency

150-350kHz (model dependent)

Environmental

MTBF

5,885,546 hours

Operating Temperature (Ambient):

➉

–40 to +85°C with Derating

(see Derating Curves)

Thermal Shutdown

+115°C to +130°C

Storage Temperature

–55 to +125°C

Flammability

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

Performance/Functional Specifications

➀ ➁

Input

Input Voltage Range:

D12 Models (start up at 10V max.)

9-18 Volts (12V nominal)

Q12 Models (start up at 10V max.)

9-36 Volts (24V nominal)

D24 Models

18-36 Volts (24V nominal)

Q48 Models

18-75 Volts (48V nominal)

D48 Models

36-75 Volts (48V nominal)

Overvoltage Shutdown:

D12 Models

18.5-23 Volts

Q12/D24 Models

37-42 Volts

D48/Q48 Models

Not applicable

Start-Up Threshold:

➁

D12/Q12 Models

9.4-10 Volts

D24/Q48 Models

15.5-18 Volts

D48 Models

33.5-36 Volts

Undervoltage Shutdown:

➁

D12/Q12 Models

7.0-8.8 Volts

D24/Q48 Models

15-17 Volts

D48 Models

32-35.5 Volts

Input Current:

Normal Operating Conditions

See Ordering Guide

Standby Mode (Off, OV, UV)

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)

On = open, open collector, or to +15V

Negative Logic ("N" Suffix Models)

Off = open, open collector or to +15V

Output

Initial

±1.5%

Temperatue Coefficient

±0.02% per °C

±3%

Minimum Loading for Specification:

➁

No load

Ripple/Noise (20MHz BW)

➀

See Ordering Guide

Line/Load Regulation

See Ordering Guide

Efficiency

See Ordering Guide

±5% minimum (±10% for T models)

Remote Sense Compensation

➁

±5%

Isolation Voltage:

Input-to-Output

1500Vdc minimum (BASIC)

Isolation Capacitance

650pF

Isolation Resistance

100M

➆

10 Amp Models

12-15 Amps

7.5 Amp Models

8.2-11.5 Amps

5/6 Amp Models

6.5-8.5 Amps

2.5 Amp Models

2.6-4 Amps

2.0 Amp Models

2.1-3 Amps

Short Circuit Current (Hiccup)

1.5-2.3 Amps

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.