75 Watt, High Density, Eighth Brick DC/DC Converters

	Small 2.32" X 0.9" X 0.37" Size
	Constant Frequency
	High Typical Efficiency of 92% (12Vout)
	Low Output Noise
	24 or 48VDC Nominal Input Voltage Options
	Output Over Voltage Protection
	Current Limit/Short Circuit Protection
	Adjustable Output Voltage 80-110% of Vo
	No Sink Current from Output During Shutdown
	Logic ON/OFF Control
	MTBF of 1.3Mhrs
	RoHS Compliant
	CSA Certified to IEC 60950-1 for Basic Insulation

Model Number	Output Voltage	Output Amps	Input Range	Max. Iin FL	Efficiency	Transient Input Voltage (100mS max.)	Max Output Power
ASD75-24S3.3EB	3.3 VDC	20 Amps	18-36 VDC	4.9Amps	89%, typ.	50 VDC	66 Watts
ASD75-24S5EB	5 VDC	15 Amps	18-36 VDC	5.5Amps	90.5%, typ.	50 VDC	75 Watts
ASD75-24S12EB	12 VDC	6.25 Amps	18-36 VDC	5.5Amps	91.5%, typ.	50 VDC	75 Watts
ASD75-48S3.3EB	3.3 VDC	20 Amps	36-75 VDC	2.5Amps	89%, typ.	100 VDC	66 Watts
ASD75-48S5EB	5 VDC	15 Amps	36-75 VDC	2.9Amps	91%, typ.	100 VDC	75 Watts
ASD75-48S12EB	12 VDC	6.25 Amps	36-75 VDC	2.9Amps	92%, typ.	100 VDC	75 Watts

ASD75EB series

Input Specifications

Input Voltage (+In to -In)	See Chart Above
Iransient Input Voltage	See Chart Above
Input Operation Voltage	See Chart Above
Input current FL (0 Vin - Vin max.)	See Chart Above
Input Transient	1A²t
Input Reflected Ripple Current	20mAp-p, typ. (Note 1)
Startup Input Voltage (Note 4)	24Vin: 16-18 VDC; 48Vin: 33-36 VDC
Shutoff Input Voltage	24Vin: 14-16 VDC; 48 Vin: 30-33 VDC
Hysteresis	1V

General Specifications

Input-Output	1500 VDC
Input-Output Capacitance	1500pF
Isolation Resistance	10MΩ
Efficiency	See Chart Above

Physical Specifications

Size (Inches)	2.3” x 1.45” x 0.47”
Size (mm)	58.4 x 36.8 x 12mm
Weight (g)	20.5g
Weight (oz)	0.72oz

Output Specifications

Output Voltage	See Chart Above
Output Amps	See Chart Above
Output Set Point (Vo, set)	±1.5%, Nominal Vin, FL
Total Output Voltage Range	±3%
Line/Load Regulation	±1%
Temperature Regulation	±1%, -40 to 70°C
Ripple and Noise	150mVp-p max. / 30mV RMS, (Note 2)
Dynamic Response
Peak Deviation Settling Time	4% Vnom 200uS Vout within 1% Vnom
Over Voltage Protection	110-140% of Output, Hiccup Mode
Over Temperature Protection	105-125°C, auto recover
External Capacitance (Electrolytic)	3.3 & 5Vout; 10 to 5000uF max.; 12Vout: 220 to 1200uF max.
Short Circuit Protection (rms)	15Arms, Hiccup, Rout ≤10MΩ
Current Limit (rms)	105-140%,Hiccup Mode

Environmental Specifications

Operating Temperature	-40 to +85°C (See Derate Curve on Specification Sheet)
Case Temperature	100°C typ.
Storage Temperature	+125°C
Wave Solder Temperature	260°C for 10 Seconds
MTBF	1.3Mhrs.

Control Specifications

Input Logic Low	Voltage at 1mA current relative to -Vin is 1V max.
Input Logic High	Enable pin voltage relative to -Vin is 5.5V
Turn-On Time	500mS, FL, 0=90% Vo, set
Trim Adjustment Range	80-110% See Trim Function on Specification Sheet

Notes

1. Measured before Input Filter, 12uH industor.

2. Scope measurement should be made using a BNC connector with 1uF and 10uF aluminum electrolytic capacitor across output. Scope set to read at 20MHz bandwidth.

3. 25%-50%-75% load, 0.1/uS.

4. The Cold Start condition is a uniform converter temperature of -40°C after thermal stabilization. An additional 2x220uF is needed for cold startup conditions. The Hot Start condition for start up is a uniform converter temperature of 65°C after thermal stabilization.

All specifications are typical at nominal input, full load, and 25°C unless otherwise noted

ASD75EB 75 Watt Converters

75 Watt, High Density, Eighth Brick DC/DC Converters

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