2

www.recom-international.com

13-February-2007

Characteristics

Conditions

Min.

Typ.

Max.

Input Voltage Range

See table

9

48

72V

Output Voltage Range (for customized parts)

All Series

3.3

24V

Output Current (see Note 1)

3.3V, 5V, 6.5V, 9V, 12V, 15V

10

500mA

24V

6

300mA

Output Current Limit (Vin = 48VDC)

All Series

700

1200mA

Short Circuit Input Current

All Series

15

25mA

Internal Input Filter

1µF Capacitor

Internal Power Dissipation

0.65W

Short Circuit Protection

Continuous, automatic recovery

Output Voltage Accuracy

At 100% Load

±2

±3%

Line Voltage Regulation

Vin = min. to max. at full load

0.4

1%

Load Regulation

10% to 100% full load

0.3

0.6%

Dynamic Load Stability (with Output Capacitor=100µF)

100% <-> 50% load

±75mV

±100mV

Ripple & Noise (without Output Capacitor)

10% to 100% full load

20mVp-p

60mVp-p

Temperature Coefficient

-40°C ~ +85°C ambient

0.015%/°C

Max capacitance Load

100µF

Switching Frequency (See Graph)

Full Load

120

800kHz

Quiescent Current

Vin = 48VDC. at minimum load

1

5mA

Operating Temperature Range

-40°C

+85°C

Operating Case Temperature

+100°C

Storage Temperature Range

-55°C

+125°C

Case Thermal Impendance

60°C / W

Thermal Shutdown

Internal IC junction

+160°C

Relative Humidity

95% RH

Package Weight

4g

Case Material

Non-Conductive Black Plastic

Potting Material

Epoxy (UL94V-0)

Soldering Temperature

265°C max./10 sec.

MTBF (+25°C)

using MIL-HDBK 217F

7395 x 10³ hours

.

(+71°C)

using MIL-HDBK 217F

1242 x 10³ hours

R-78HBxx-0.5

(L) Series

Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%)

INNOLINE

DC/DC-Converter

Standard Application Circuit

R-78HBxx-0.5

-Vout

+Vout

+Vin

-Vin

The converter has a built in soft start circuit. Rapidly changing the input voltage

from Vin(min)

Vin(max) can bypass this circuit and damage the converter.

Application Notes chapter "MTBF"

Add a blocking diode to

Vout if current can flow

backwards into the out-

put, as this can damage

the converter.