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VRB_LD-30WR2

2013.12.11-A/3

Page2 of8

Under Voltage Shutdown

24VDC Input Models

16

--

--

VDC

48VDC Input Models

32

--

--

Start-up Time

Nominal input & constant resistance load

--

10

--

ms

Models ON

Ctrl open or connect TTL high level (2.5-12VDC)

Models OFF

Ctrl connect GND or low level (0-1.2VDC)

Input current at shutdown

--

1

--

mA

Input Filter

Pi Filter

*The Ctrl control pin voltage is refer to GND.

OUTPUT SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Unit

Output Voltage Accuracy

--

±1

±3

%

Line Voltage Regulation

Input voltage from low to high at 100% load

--

±0.2

±0.5

Load Regulation

From 10% to 100% load Nominal input

--

±0.5

±1

Transient Recovery Time

25% load step change

--

300

500

µs

Transient Response Deviation

--

±3

±5

%

Temperature Drift

100% load

--

±0.02

--

%/

°C

Ripple & Noise*

20MHz bandwidth

--

50

120

mVp-p

Output Voltage Range (Trim)

--

±10%Vo

--

VDC

Over Voltage Protection

Full input voltage

3.3VDC output

--

3.96

--

5VDC output

--

6

--

9VDC output

--

10.8

--

12VDC output

--

15

--

15VDC output

--

18

--

24VDC output

--

28

--

Over Current Protection

Full input voltage

120

130

150

%

Short Circuit Protection

Hiccup, automatic recovery

Note: *Ripple and noise tested by

“parallel cable” method. See detailed operation instructions at DC-DC Application Notes .

COMMON SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Unit

Isolation Voltage

Input -Output ,tested for 1 minute, leakage current less than 1 mA

1500

--

--

VDC

Isolation Resistance

Input -Output, test at 500VDC

1000

--

--

M

Ω

Isolation Capacitance

Input -Output,100KHz/0.1V

--

2000

--

pF

Switching Frequency

PWM mode

--

300

--

KHz

MTBF

MIL-HDBK-217F@25℃

1000

--

--

K hours

Safety approvals

VRB2412LD-30WR2

UL60950, EN60950

Others

EN60950

Case Material

Aluminum Alloy

Size

PCB mounting（Without heat sink）

50.8x25.4x11.8

mm

PCB mounting（With heat sink）

50.8x25.4x16.3

A2S chassis mounting（Without heat sink）

76.0x31.5x21.2

A4S DIN-Rail mounting（Without heat sink）

76.0x31.5x25.8

A2S chassis mounting（With heat sink）

76.0x31.5x25.1

A4S DIN-Rail mounting（With heat sink）

76.0x31.5x29.7

Weight

PCB mounting（Without heat sink）

--

22

--

g

PCB mounting（With heat sink）

--

35

--

A2S chassis mounting（Without heat sink）

--

44

--

A4S DIN-Rail mounting（Without heat sink）

--

64

--

A2S chassis mounting（With heat sink）

--

57

--

A4S DIN-Rail mounting（With heat sink）

--

77

--

ENVIRONMENTAL SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Unit

Storage Humidity

Non condensing

5

--

95

%

Operating Temperature

See Temperature Derating Curve（see Figure3）

-40

--

85

°C

Storage Temperature

-55

--

125