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Embedded Power for Business-Critical Continuity
DTX42K48
42 Amps
Total Power: 50 Watts Input Voltage: 48V # of Outputs: Single
Rev. 09.29.05 DTX Series 1 of 2
Electrical Specifications
Input
Input range 36 to 75VDC 100V / 100ms Programmable 34V - 36V (default turn-on) 30V - 33V (default turn-off)
Special Features
* Fully Digital-mode DC-DC converter * Extensive PMBusTM command set implementation for maximum control opportunity * Efficiency optimizer (Pat. Pending) * Self Diagnostics (Pat. Pending) * User accessible data storage * Low profile SMT termination for tight-fit applications (portable equipment, etc) * User accessible operating code for optimum flexibility * Basic Insulation
Input surge Under voltage lock-out
Output
Line regulation Load regulation Output voltage setpoint Noise/ripple2 Remote sense Transient response2 0.18%Vo 0.1%Vo 0.5% 25mV Typ Differential mode - up to 10%Vo Programmable Loop compensation Default: 5% Vo deviation 50% to 75% load change Programmable range and mode Overvoltage protection Default - 115% lo Programmable range and mode Over current protection Default - 115% lo Over temperature protection Programmable range and mode Default - 110C (at ref sense point) Programmable - 380 KHz default Switching frequency 1500 Vdc Isolation Voltage
Control
Voltage Adjust Enable Programmable range: 0.96V to 1.44V Programmable Logic (posititve and negative)
Environmental Specifications
Safety
UL, cUL 60950 (Pending) TUV EN60950 (Pending) Ambient air operating temperature range -40C to +85C Storage temperature -40C to +125C MTBF >1 million hours
Embedded Power for Business-Critical Continuity
Ordering Information
Input Voltage Output Voltage Output Current Efficiency 36V to 75V 1.2V 42A 86% (Typ) Model Number DTX42K48-S
Astec Power
5810 Van Allen Way Carlsbad, CA 92008 USA Telephone: +1 760 930 4600 Facsimile: +1 760 930 0698 Technical Support: +1 888 41 ASTEC or +1 407 241 2752 Waterfront Business Park Merry Hill, Dudley West Midlands, DY5 1LX United Kingdom Telephone: +44 (0) 1384 842 211 Facsimile: +44 (0) 1384 843 355 Units 2111-2116, Level 21 Tower 1, Metroplaza 223, Hing Fong Road Kwai Fong, New Territories Hong Kong Telephone: +852 2437 9662 Facsimile: +852 2402 4426
Rev. 09.29.05 DTXSeries 2 of 2
Pin Assignments
Power Train
Pin No 1 2 3 4 Symbol +Vin Enable -Vin +Sense
PMBusTM
Pin No 12 13 15 Symbol PMBus SDA PMBus SCL PMBus Gnd
ADC Input
Pin No 14 Symbol ADC Ext
Programming3
Pin No 16 17 18 19 20 21 22 Symbol C2Bus Gnd C2CK C2D -Vin C2CK300 C2D 300 C2_Prog Bias
5, 7, 9 +Vout 6, 8, 10 -Vout 11 -Sense
Notes:
1. All specifications are typical at nominal line, full load and TA = 25 C unless otherwise noted. 2. Measurements taken with output capacitive termination: 10mF tantalum in parallel with 0.1mF ceramic capacitor. 3. Programming pins for advance feature sets / customer specific features not required for normal operation. 4. Technical reference Notes should be consulted for detailed information when available. 5. All specifications subject to change without notice.
For global contact, visit:
Mechanical Outline
www.astecpower.com technicalsupport@astec.com
While every precaution has been taken to ensure accuracy and completeness in this literature, Astec Power assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions. Printed in US A
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