DC/DC Power Supply Module

URA_YMD-6WR3 & URB_YMD-6WR3 Series

2015.09.28-A/3

Page 2 of 6

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Input impulse Voltage (1sec. max.)

24VDC input

-0.7

--

50

VDC

48VDC input

-0.7

--

100

Starting Voltage

24VDC input

--

--

9

48VDC input

--

--

18

Under-voltage turn-off

24VDC input

5.5

6.5

--

48VDC input

14

15.5

--

Input Filter

Pi filter

Hot Plug

Unavailable

Output Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

0%-100% load

--

±1

±3

%

Balance of Output Voltage

Dual output, balanced load

--

±0.5

±1.5

Line Voltage Regulation

Full load, the input voltage is from

low voltage to high voltage

Positive output

--

±0.2

±0.5

Negative output

--

±0.5

±1

5%-100% load

Positive output

--

±0.5

±1

Negative output

--

±0.5

±1.5

Cross Regulation

Dual output, main circuit with 50% load,

auxiliary circuit with 10%-100% load

--

--

±5

Transient Recovery Time

25% load step change

--

300

500

µs

Transient Response Deviation

3.3V, 5V, ±5V output

--

±5

±8

%

Others

--

±3

±5

Temperature Drift Coefficient

Full load

--

--

±0.03

20MHz bandwidth, 5%-100% load

--

60

85

mV p-p

Over-voltage Protection

Input voltage range

110

--

160

%Vo

Over-current Protection

110

140

190

%Io

Short circuit Protection

Continuous, self-recovery

Note: ①At 0%~5% load, the Max. output voltage accuracy of ±5VDC/±9VDC output converter is ±5%.

②

When testing from 0% to100%load working conditions，load regulation index of ±5%；

③

0%-5% load ripple&Noise is no more than 5%Vo.Ripple and noise are measured by “parallel cable” method, please see DC-DC Converter Application

Notes for specific operation.

General Specification

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Insulation Voltage

Input-output, with the test time of 1 minute and the leak

current lower than 1mA

1500

--

--

VDC

Insulation Resistance

Input-output, insulation voltage 500VDC

1000

--

--

MΩ

Isolation Capacitance

Input-output, 100KHz/0.1V

--

1000

--

pF

Operating Temperature

-40

--

+85

℃

Storage Humidity

Without condensation

5

--

95

%

Storage Temperature

-55

--

+125

℃

Lead Temperature

Welding spot is 1.5mm away from the casing, 10 seconds

--

--

+300

Vibration

10-55Hz, 10G, 30 Min. along X, Y and Z

Switching Frequency *

PWM mode

--

300

--

KHz

MTBF

MIL-HDBK-217F@25℃

1000

--

--

K hours

Note:* This series of products using reduced frequency technology, the switching frequency is test value of full load,When the load is reduced to below 50%, the

switching frequency decreases with decreasing load.