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| rev. page page date date 1 of 4 05/2009 PART NUMBER: VAWQ12 DESCRIPTION: dc-dc converter description Designed to convert a wide input voltage range into an isolated regulated voltage, the VAWQ12 series is well suited for data transfer equipment, battery operated equipment, distributed power systems, mix analog/digital systems, remote control systems, industrial robot systems, etc... features *efficiency up to 88% *wide (4:1) input range *12 W rated power output *I/O isolation: 1500 V dc *DIP24 package *industry standard pinout *five-sided metal shielding package *temperature range: -40C~+85C *over voltage protection *short circuit protection *remote ON/OFF input voltage range (V dc) no load typ. (mA) output voltage (V dc) output current max. min. (mA) (mA) efficiency typ. (%) MODEL nominal (V dc) max. (V dc) VAWQ12-Q24-S3R3 VAWQ12-Q24-S5 VAWQ12-Q24-S12 VAWQ12-Q24-S15 VAWQ12-Q48-S3R3 VAWQ12-Q48-S5 VAWQ12-Q48-S12 VAWQ12-Q48-S15 24 24 24 24 48 48 48 48 9.0~36.0 9.0~36.0 9.0~36.0 9.0~36.0 18.0~75.0 18.0~75.0 18.0~75.0 18.0~75.0 40 40 40 40 80 80 80 80 55 55 25 25 20 20 10 10 3.3 5 12 15 3.3 5 12 15 3500 2400 1000 800 3500 2400 1000 800 0 0 0 0 0 0 0 0 85 86 86 86 85 87 87 88 INPUT parameter input voltage range start-up time under voltage protection conditions/description 9~36 V dc 18~75 V dc input voltage range, refer to output load nominal input 24 V, dc-dc module ON nominal input 24 V, dc-dc module OFF nominal input 48 V, dc-dc module ON nominal input 48 V, dc-dc module OFF dc-dc module ON (or open circuit) dc-dc module OFF min nom 24 48 500 8.8 8.3 17 16.5 max 40 80 9 8.5 17.5 17 40 1.2 units V dc V dc ms V dc V dc V dc V dc V dc V dc CTRL 3 0 OUTPUT parameter output power voltage accuracy ripple & noise line regulation load regulation temperature coefficient switching frequency over voltage protection conditions/description 25C ambient temperature refer to recommended circuit @ 20MHz Bandwidth input voltage from low to high 10% to 100% full load refer to recommended circuit 10~100% load, nominal input 3.3 V output 5 V output 12 V output 15 V output continuous, automatic recovery min nom 1 0.2 0.5 0.02 400 4.3 6 13 16 max 12 3 85 0.5 1.5 450 units W % mVpp % % %/C kHz V dc V dc V dc V dc 350 short circuit protection 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 page date 2 of 4 05/2009 PART NUMBER: VAWQ12 DESCRIPTION: dc-dc converter GENERAL SPECIFICATIONS parameter temperature rise at full load cooling operating temp. range storage temp. range reflow soldering temp. storage humidity range case material weight MTBF conditions/description 95C typ., 105C max. free air convection -40C ~ +85C -55C ~ +125C 300C 95% copper plated nickel 18.5 g (typ.) >1,000,000 hours (power derating at 55C, refer to temperature derating graph) (for 10 seconds, 1.5 mm from case) MIL-HDBK-217F (25C) ISOLATION SPECIFICATIONS parameter isolation voltage isolation resistance isolation capacitance notes: conditions/description input/output, flash tested for 1 min. input/output/case, flash tested for 1 min. tested at 500 V dc tested at 500 V dc min 1500 1500 1000 1000 nom max 1100 units V dc V dc M M pF 1. All specifications measured at T A =25C, humidity <75%, nominal input voltage and rated output load unless otherwise specified. 2. When the product begins to work, the temperature may rise slowly until stable. It is normal that output voltage derating and efficiency reduce about 2% during this process. 3. The CTRL pin voltage is referenced to GND. 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 page date 3 of 4 05/2009 PART NUMBER: VAWQ12 DESCRIPTION: dc-dc converter Application Notes: - All of the VAWQ12 Series have been tested according to the following recommended testing circuit before leaving the factory. This series should be tested under load (Figure 1). If you want to further decrease the input ripple, you can use a 100 F capacitor at Cin. If output filtering is required, you can add a capacitor to the output. However, the capacitance should not be higher than maximum capacitance. - Temperature Derating Curve Figure 1 Vin C in - Efficiency Curves Vout DC DC 0V GND Output Capacitor Values output voltage recommended maximum capacitance (F) capacitance (F) 3.3 5 12 15 220 220 100 100 3000 2000 500 400 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 |
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