APPLICATION NOTES QAW SERIES Technical Specifications M odel N o. QAW24T15-40 All specifications are based on 25C, Nominal Line and Full Load unless otherwise noted. We reserve the right to change specifications based on technological advances. SPECIFICATION Related condition MIN INPUT Turn on at Turn off at Input Over voltage Shutdown Turn off at Turn on at Voltage Hysteresis Operating Voltage Range Maximum Input Current No Load Input Current Input Current under “LOGIC OFF” Inrush Current Transient Rating Reflected Ripple Current OUTPUT Output Voltage Set point Output Voltage Regulation Over Load Over Line Over Temperature Output Voltage Ripple and Noise Basic Ripple Spikes P-P Output Current Ranges Output Current Limit Short Term Output Current Surge DYNAMIC CHARACTERISTICS Input Voltage Ripple Rejection Output Transient and Load Changes Load step / V Load step / V Recovery Time Turn on Delay Overshoot of Output Voltage EFFICIENCY @ 100% load @ 75% load @ 50% load @ 25% load TEMPERATURE CONSIDERATIONS Thermal Resistance Normal Convection 100 lfm 200 lfm 300 lfm 400 lfm Heatsink Considerations General Technical Data Switching Frequency Remote ON OFF Control Trimmablility Over Temperature Shutdown MTBF Rated Input Voltage Low Line 100% load 9 20 MHz w/low source impedance 4.95/±14.25 NOM MAX 8.85 8.62 Volt DC Volt DC 38 37 0.2 24 5.4 25 2 1 700 Volt DC Volt DC Volt DC Volt DC A mA mA A 2 Sec mA 5 / ±15 36 5.05/±15.75 1 / ±5 1 / ±1 0.2 / 1 25 50 Rated Output Current Self Resetting 0.4 / ±0.133 5.2 / ±0.87 Unit Measured 6 / ±1 Volt DC % % % / oC 100 100 4 / ±0.667 6.8 / ±1.14 mV mV A A A/sec 120 Hz 60 dB 50 to 75% 50 to 100% 75 to 50% 100 to 50 % To within 1% Rated Vo From Vin(nom) to 90% Vout (nom) Full Load Resistive 50 45 100 475 0 mV mV sec msec % 83 82 81 76 % % % % X X o 4.84 R c-a C/Watt C/Watt o C/Watt o C/Watt o C/Watt o Available, Contact Factory 350 Fixed Active HIGH, Open Collector 4.75/±14.25 5.25/±15.75 105 Case Temperature Bellcore TR-332 3.51E6 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 KHz TTL Volt DC o C Hours 1 APPLICATION NOTES QAW SERIES OUTPUT POWER (WATTS) DERATING CURVE 50 40 30 20 10 0 0 20 40 60 80 100 AMBIENT TEMPERATURE (DEG. C.) POWER DISSIPATION (WATTS) POWER DISSIPATION VS OUTPUT POWER 6 Low Line 5 4 Nominal Line 3 2 1 High Line 0 0 10 20 30 40 50 60 70 80 90 100 OUTPUT POWER (%) EFFICIENCY VS OUTPUT POWER Low Line EFFICIENCY (%) 85 75 65 Nominal Line 55 45 High Line 35 0 10 20 30 40 50 60 70 80 90 100 OUTPUT POWER (%) Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 2 APPLICATION NOTES QAW SERIES TYPICAL OUTPUT RIPPLE 20mV/div, 1uS/div, full load, 9Vin 0.1uF decoupling cap at room temp (measured at main output) TYPICAL OUTPUT RIPPLE 20mV/div, 1uS/div, full load 36Vin 0.1uF decoupling cap at room temp (measured at main output) TYPICAL INPUT RIPPLE CURRENT 200mA/div, 1uS/div, full load 24Vin at room temp with a low source impedance TYPICAL TRANSIENT RESPONSE 20mV/div, 200uS/div, 50% full load to 75% full load 24Vin room temp (measured at main output w/aux. outputs at full load) TYPICAL RISE TIME & TURN-ON DELAY USING LOGIC ENABLE 1V/div, 100mS/div (Vout), 2V/div 100mS/div (logic enable) 18Vin, full load at room temp TYPICAL RISE TIME & TURN-ON DELAY WITH Vin 0-24V 1V/div, 100mS/div (Vout), 5V/div, 100mS/div (Vin) at room temp Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 3