RDF50 Series

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2

DC-DC Converter

Input

Output

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Output Voltage

5

48

VDC

See Models and Ratings table

Output Trim

-20

+10

%

See Application Note

Initial Set Accuracy

±1.0

%

At full load

Minimum Load

0%

No minimum load required

Line Regulation

±0.5

%

From minimum to maximum input at full load

Load Regulation

±0.2

%

From 0% to full load for single/dual output

Transient Response

±5.0

%

Maximum deviation, recovering to less than 1% in

250 µs for 25% step load change.

Start Up Time

15

ms

Output Voltage Rise Time

10

ms

Ripple & Noise

mV pk-pk

See models and ratings table

Overload Protection

110

180

200

%

Short Circuit Protection

Continuous hiccup mode, with auto recovery

Maximum Capacitive Load

See Models and Ratings table

Temperature Coefficient

0.02

%/ ˚C

Overvoltage Protection

115

125

140

%

Remote On/Off

Output is on if remote on/off (pin 2) is open or high (3.5-160 VDC)

Output turns off if remote on/off (pin 2) is low

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Input Voltage Range

14

160

VDC

Covers 24, 48, 72 & 110 VDC nominal inputs

Input Surge

200

VDC

For 100 ms

Undervoltage Lockout

On: >13.4 V

13.7

14.0

VDC

On

Off: <11.9 V

12.2

12.5

Off

Lockout Hysteresis

1.5

VDC

Idle Current

35

mA

When output is inhibited

Inrush Current

0.1

Recommended Input Fuse

8A

Time delay type

Input Reflected Ripple Current

40

mA pk-pk

Through 10 µH inductor

General

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Efficiency

88

%

See Models and Ratings table

Isolation: Input to Output

Input to Case

Output to Case

3000

VDC

60 s

2500

500

VAC

Switching Frequency

180

200

220

kHz

Fixed

Isolation Resistance

Ω

Isolation Capacitance

1000

pF

Input to Output

1500

Input to Case

10000

Output to Case

Power Density

30

Mean Time Between Failure

780

kHrs

MIL-HDBK-217F, +25 °C GB

Weight

0.136 (61.5)

lb (g)

Environmental

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Operating Base Plate Temperature

-40

+100

°C

Storage Temperature

-55

+105

°C

Thermal Protection

107

°C

Humidity

95

%RH

Non-condensing

Cooling

Base plate cooled