www.recom-international.com

EC 35

August 2002

All RSO-XXXX types 10uF, 100V

Philips Part No. 15162109

100uF, 25V

Philips Part No. 13556101

Pin 3 (CTRL)

This pin provides an Off function which puts

the converter into a low power mode. When

the pin is ‘high’ the converter is OFF and

when the pin is high ‘Z’ the converter is ON.

There is no allowed low state for this pin.

Voltage to be applied via a limiting resistor

with a recommended value of 1K for RSO-

05xx; 3.3K for RS-12xx; RS-24xx and 10K

for RS-48xx)

Pin 5 (NE)

This pin is used internally and must have no

external connection.

Pin 8 (Cs)

This pin provides a connection point to the

main reservoir capacitor. Additional capaci-

tance can be added from this to pin 7. Any

low esr capacitor will improve ripple and

noise in some measure. The benefit of this

access point over simple additional output

filter inductor. Maximum values of external

capacitance will be depend on the output

voltage/loading of the converter and the

desired ripple figure. Starting values can be

in the range of 100uF.

ECONOLINE - DC/DC-Converter

RSO Series, 1 Watt, SIP8, Regulated, Isolated (Single Output)

Input Voltage Range

2:1

Output Accuracy

±1% typ.

Rated Power

1 W max.

Isolation Voltage

1kVDC

Ripple & Noise (B/W = 20MHz)

50mV p-p max.

Line Regulation

±0.2% max.

Load Regulation (10% to 100% Load)

±0,5% max.

Switching Frequency at Full Load

85kHz min.

Short Circuit Protection

Continuous

Operating Temperature Range

–40°C to +80°C (see graph)

Storage Temperature Range

–50°C to +125°C

Efficiency

up to 80%

Package Style and Pinning (mm)

12

5

36 7 8

3.20 typ.

0.25±0.05

2.0±0.50

9.20 max.

21.80 max.

0.50±0.05

3.10min.

0.50±0.05

11.10 max.

RSO-0505

RECOM

****

2.54 typ.

2.54

2.54

1.0ø+0.15/–0

Recommended Footprint Details

8 Pin SIP Package Style

Control Pin Input Current:

10mA

Voltage Set Point Accuracy

with external input/output

capacitors refer to

typ. ± 1%

recommended test circuit:

max. ±2%

Control Pin (CTRL) Input

Current, control voltage

applied via 1K resistor,

output voltage must

typ. 3mA

reduce to 0V:

max. 6mA

External capacitance

Although these converter will work without

external capacitors, they are necessary in

order to guarantee the full parametric per-

formance over the full line load range. All

parts have been tested and characterised

using the following recommended values

and test circuit.

2.0

1.5

0.5

1.0

100

50

0

-40

80

125

150

Operating Temperature ˚C

0

Safe Operating Area

0V

External

Cap.

+

–

Pin 7

+

Pin Connections

Pin # Single Description

1

GND

Negative input

2

+Vin

Positive input

3

CTRL

Control input can

(can be left open)

4

Not fitted

5NENo exernal connection

allowed

6+Vout

Positive output

7

OVout

Negative output

8CS

Optional external capacitor