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rev. page date 1 of 3
08/2007
PART NUMBER: VSCQ30 series
DESCRIPTION: DC/DC converter
features
*20-30W isolated output *high efficiency to 91% *fixed 300KHz switching frequency *4:1 wide input range *regulated outputs *continuous short circuit protection *six-sided metal case *2"x1.6" size *industry standard pin-out
model number VSCQ30-Q24-S3R3 VSCQ30-Q24-S5 VSCQ30-Q24-S12 VSCQ30-Q24-S15 VSCQ30-Q48-S3R3 VSCQ30-Q48-S5 VSCQ30-Q48-S12 VSCQ30-Q48-S15
input voltage 1 9-36VDC 9-36VDC 9-36VDC 9-36VDC 18-75VDC 18-75VDC 18-75VDC 18-75VDC
output voltage 3.3VDC 5VDC 12VDC 15VDC 3.3VDC 5VDC 12VDC 15VDC
output current min. max. 0mA 7500mA 0mA 6000mA 0mA 2500mA 0mA 2000mA 0mA 7500mA 0mA 6000mA 0mA 2500mA 0mA 2000mA
input current no load full load 50mA 1185mA 60mA 1404mA 80mA 1374mA 50mA 1389mA 30mA 579mA 30mA 694mA 40mA 687mA 50mA 694mA
efficiency 87% 89% 91% 90% 89% 90% 91% 90%
NOTE: 1. nominal input voltage 24, 48 VDC
INPUT
input voltage range under voltage lockout 24V 48V 24Vin 24Vin 48Vin 48Vin power power power power up down up down 9-36V 18-75V 8.8V typ. 8.0V typ. 17V typ. 16V typ. PI type see note 3&4
input filter type positive logic remote on/off control
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
rev. page date 2 of 3
08/2007
PART NUMBER: VSCQ30 series
DESCRIPTION: DC/DC converter
OUTPUT
voltage accuracy transient response: 75%-100% step load change error band recovery time external adjustment range, %Vo ripple & noise, 20MHz BW (measured with 0.1uF MLCC) 3.3V & 5V 12V & 15V temperature coefficient short circuit protection line regulation 1 load regulation 2 over voltage protection (Zener or TVS clamp) 3.3V 5V 12V 15V current limit, % nominal output 1.5% max. 5% Vout nominal <300 sec. 10% 20mV RMS., max 75mV pk-pk, max. 20 mV RMS, max. 100mV p-p, max 0.02%/C continuous (hiccup mode) 0.5% max 0.5% max 3.9V 6.2V 15V 18V 110% ~ 150%
GENERAL SPECIFICATIONS
efficiency isolation voltage isolation resistance switching frequency operating temperature range derating, above 60C case temperature cooling storage temperature thermal shutdown, case temp. dimensions case material 24Vin 48Vin see table 1500VDC min. 10 8 ohms min 300KHz, typ. 250KHz, typ. -40C to +85C linearly to zero power at +100C 100C max. natural convection -55C to +125C 110C, typ. 2.0x1.6x0.40 inches (50.8x40.6x10.2mm) black coated copper with non-conductive base
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 100C
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
rev. page date 3 of 3
08/2007
PART NUMBER: VSCQ30 series
DESCRIPTION: DC/DC converter
DIMENSIONS-(mm)
PIN CONNECTIONS
40.6 12.70 2.54 17.78 7.62 5.6
pin 1 3 4 5 6 7 8
1.02 (TYP)
function on/off control -Vin +Vin Trim -Vout +Vout no pin
45.72
50.8
EXTERNAL OUTPUT TRIM
+Vout
17.78 5.08 15.24 Bottom View units: mm tolerance: x.xx 0.0 x.xx 0.25 10.2
+Vout
10K Ohms TRIMPOT
TRIM DOWN
TRIM
TRIM UP
TRIM
-Vout
-Vout
DERATING CURVE
Typical Derating curve for Natural Convection 120% 100%
LOAD(%)
-40
60
80% 60% 40% 20% 100 0% -40 -20 0 20 40 60 Ambient Temperature(oC) 80 100 Natural Convection
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382

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