rev. page 1 of 3 date 08/2007 DESCRIPTION: DC/DC converter PART NUMBER: VSCQ20 series features · 20W isolated output ·efficiency to 84% ·4:1 input range ·continuous short circuit protection ·remote on/off control ·Pi input filter model number VSCQ20-Q24-S5 VSCQ20-Q24-S12 VSCQ20-Q24-S12 VSCQ20-Q24-D12 VSCQ20-Q24-D15 VSCQ20-Q24-D5 VSCQ20-Q24-S3R3 VSCQ20-Q48-S5 VSCQ20-Q48-S12 VSCQ20-Q48-S15 VSCQ20-Q48-D12 VSCQ20-Q48-D15 VSCQ20-Q48-D5 input voltage 9-36VDC 9-36VDC 9-36VDC 9-36VDC 9-36VDC 9-36VDC 9-36VDC 18-72VDC 18-72VDC 18-72VDC 18-72VDC 18-72VDC 18-72VDC output voltage 5VDC 12VDC 15VDC ±12VDC ±15VDC ±5VDC 3.3VDC 5VDC 12VDC 15VDC ±12VDC ±15VDC ±5VDC output current 4000mA 1670mA 1330mA ±833mA ±666mA ±2000mA 4000mA 4000mA 1670mA 1330mA ±833mA ±666mA ±2000mA VSCQ20-Q48-S3R3 18-72VDC 3.3VDC 4000mA input current no load full load 15mA 1029mA 15mA 1006mA 15mA 1004mA 20mA 1004mA 20mA 1004mA 20mA 1004mA 15mA 705mA 10mA 508mA 10mA 497mA 10mA 496mA 15mA 496mA 15mA 496mA 15mA 496mA 10mA 353mA 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 efficiency 81% 83% 83% 83% 83% 83% 78% 82% 84% 84% 84% 84% 84% 78% rev. page 2 of 3 date 08/2007 DESCRIPTION: DC/DC converter PART NUMBER: VSCQ20 series INPUT input voltage range 24V 9-36V 48V input filter type 18-72V PI type positive logic remote on/off control see note 3 OUTPUT voltage accuracy single output ±1.0% max. voltage accuracy dual+output voltage accuracy dual-output ±1.0% max. ±2.0% max. voltage balance, dual output at full load transient response single 25% step load change dual-FL 1/2L±1% error band ripple & noise 20MHz BW, ±1.0% max. temperature coefficient short circuit protection Safety line regulation 1 single/dual output single/dual output load regulation 2 <500µ sec. <500µ sec. 20mV RMS., max 75mV p-p, max ±0.02%/°C continuous approved to UL60950-1 (E222736) ±0.5% max ±0.5% max GENERAL SPECIFICATIONS efficiency isolation voltage isolation resistance see table 1500VDC min. 10 8 ohms min switching frequency 300KHz, type operating temperature range -25°C to +71°C derating, above 60°C linearly to zero power at +100°C case temperature 100°C max. storage temperature -55°C to +105°C EMI/RFI six sided continuous shield dimensions 2.0x1.6x0.45 inches case material black coated copper with non-conductive base (50.8x40.64x11.43mm) NOTES: 1. measured from high line to low line 2. measured from full load to 1/4 load 3. remote on/off control: logic compatibility CMOS or open collector TTL EC-ON EC-OFF control common >+5.5VDC or open circuit <1.8VDC referenced to input minus 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 rev. PART NUMBER: VSCQ20 series DESCRIPTION: DC/DC converter DIMENSIONS- (mm) EXTERNAL OUTPUT TRIMMING 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 page 3 of 3 date 08/2007