rev.

page

date

DESCRIPTION: DC/DC converter

2 of 3

08/2007

20050

phone

phone 503.612.2300 fax

fax 503.612.2382

PART NUMBER: VSCQ30 series

NOTES:

1. measured from high line to low line

2. measured from full load to 10% load

3. remote on/off control:

logic compatibility CMOS or open collector TTL

EC-ON

>+3.5VDC to 75Vdc or open circuit

EC-OFF

<1.2VDC

4. suffix “N” to the model number with negative logic remote on/off

EC-ON

<1.2VDC

EC-OFF

>+3.5VDC to 75Vdc or open circuit

5. maximum case temperature under any operating condition should not exceed 100°C

GENERAL SPECIFICATIONS

efficiency

see table

isolation voltage

1500VDC min.

isolation resistance

switching frequency

24Vin

300KHz, typ.

48Vin

250KHz, typ.

operating temperature range

-40°C to +85°C

derating, above 60°C

linearly to zero power at +100°C

case temperature

100°C max.

cooling

natural convection

storage temperature

-55°C to +125°C

thermal shutdown, case temp.

110°C, typ.

dimensions

2.0x1.6x0.40 inches

(50.8x40.6x10.2mm)

case material

black coated copper with non-conductive base

OUTPUT

voltage accuracy

±1.5% max.

transient response: 75%-100% step load change

error band

±5% Vout nominal

recovery time

<300μ sec.

external adjustment range, %Vo

±10%

ripple & noise, 20MHz BW (measured with 0.1uF MLCC)

3.3V & 5V

20mV RMS., max

75mV pk-pk, max.

12V & 15V

20 mV RMS, max. 100mV p-p, max

temperature coefficient

±0.02%/°C

short circuit protection

continuous (hiccup mode)

±0.5% max

±0.5% max

over voltage protection (Zener or TVS clamp)

3.3V

3.9V

5V

6.2V

12V

15V

15V

18V

current limit, % nominal output

110% ~ 150%