Custom Military Power Supply 200W Output 48V 13.2A EH200-24S48-PEC

Military Power Supply 200W Output 48V EH200-24S48-PEC

 

 

Key Features

Wide input range: 18-36 V

Output power: 200W

High conversion efficiency: 94%

Line regulation to: ±0.5%

Load regulation to: ±0.5%

Input under-voltage lock-out

Output voltage trim: 8% Vout

Output over-current protection

Hiccup mode short circuit protection

Over-temperature protection

Enable (On/Off) Control

Isolation Voltage:1500Vdc

 

Product Overview

These DC-DC converter modules use advanced power processing, control and packaging technologies to provide the performance, flexibility, reliability and cost effectiveness of a mature power component. High frequency Active Clamp switching provides high power density with low noise and high efficiency.

 

1. Electric Characteristics

1.1 Absolute Maximum Ratings

Parameter	Min	Typ	Max	Units	Notes
Input Voltage			45	Vdc	Continuous, non-operating
			40	Vdc	Continuous, operating
			45	Vdc	Impulse voltage,<100ms,operating
Isolation Voltage			2000	Vdc	Input to Output
Operating Temperature	-40		100	℃	In view of PCB Temperature
Storage Temperature	-55		105	℃
Enable to –Vin Voltage	-0.5		10	Vdc

 

1.2 Input Characteristics

Parameter	Min	Typ	Max	Units	Notes
Input voltage range	18	24	36	Vdc
Under-Voltage Lockout		17.5	17.9	Vdc	Recovery point
	15.5	16.5		Vdc	Protect point
Maximum Input Current			13.2	A	Vin min,output full load
Efficiency		93		%	Rated input;rated load
Dissipation,standby		15	20	W	Minimum load Iout=0.2A

 

1.3 Output Characteristics

Parameter	Min	Typ	Max	Units	Notes
Output Voltage Set point	47.52	48.00	48.48	Vdc	Nominal input; No load
Output Voltage Range	47.52	48.00	48.48	Vdc	Nominal input; load
Output Current Range	0		4.16	A
Line Regulation			±0.5	%
Load Regulation			±0.5	%
Current Limit	4.3	4.9	5.8	A	Output voltage 95% of nominal
Short Circuit Current			5	A
Ripple (RMS)		150		mV	Nominal input; full load; 20 MHz bandwidth.
Noise(Peak-to-Peak)		240		mV

 

1.4 Dynamic Response Characteristics

Parameter	Min	Typ	Max	Units	Notes
Change In Output Current		1		V	50% to 75% to 50% Iout max; (di/dt= 0.1A/μs).
		1.2		V	50% to 75% to 50% Iout max; (di/dt= 2.5A/μs).
Dynamic recovery time		300		μS
Turn-on Time		50		mS	Starting from vin to vout rise to 90%
Turn-off overshoot			5	%

 

1.5 Functional Characteristics

Parameter	Min	Typ	Max	Units	Notes
Switching Frequency	187	230	255	KHz
Output Trim		8		% Vout	Trim Up
		8			Trim Down
Enable PIN Current			0.5	mA
Enable (ON/OFF)	2.5		10	Vdc	ON-control, Logic high or floating
	-0.5		0.5	Vdc	OFF-Control, Logic low
Over-Load Protection	110	120	140	%	Current mode,Pulse current(100% rated load)
Over-temperature protection		105		℃	Protect point
		90		℃	Recovery point

 

 

1.6 Isolation Characteristics

Parameter	Min	Typ	Max	Units	Notes
Isolation Voltage	1500			Vdc	Input to Output
	1500			Vdc	Input to base
	1500			Vdc	Output to base
Isolation Resistance	100			MΩ	At 500Vdc to test it when atmospheric pressure and R.H. is 90%
Isolation Capacitance		1000		pF

 

 

2. General Characteristics

Parameter	Min	Typ	Max	Units	Notes
Weight		118		Oz (g)
MTBF	1			MHrs	TR-NWT-000332;80% load,300LFM, 40℃ Ta

 

3. Environmental Characteristics

Parameter	Min	Typ	Max	Units	Notes
Operating Temperature	-40		100	℃	Base PCB temperature
Storage Temperature	-55		105	℃	Base PCB temperature
Temperature Coefficient			±0.02	%/℃
Humidity	20		95	%R.H.

 

4. Standards Compliance

Parameter	Notes
MIL-STD-704
MIL-STD-1399
MIL-STD-810
UL/cUL60950
GB4943
IEC 61000-4-2

 

5. Typical Wave And Curves

Figure 1: Efficiency at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25°C.

 

Figure 2: Power dissipation at nominal output voltage vs. load current for minimum, nominal, and maximum

input voltage at 25°C.

 

Figure 3: Maximum output power derating curves vs. ambient air temperature for airflow rates of 0 LFM

through 400 LFM with air flowing from pin 3 to pin 1 (nominal input voltage).

 

Figure 4: Output voltage ripple at nominal input voltage and rated load current. Load capacitance: 0.1μF ceramic capacitor and 10μF tantalum capacitor. Bandwidth: 20 MHz.

 

Figure 5: Thermal plot of converter at full load current(200W) with 25°C air flowing at the rate of 200

LFM. Air is flowing across the converter from pin 3 to pin 1 (nominal input voltage).

 

Figure 6: Thermal plot of converter at full load current(200W) with 25°C air flowing at the rate of 200

LFM. Air is flowing across the converter from input to output (nominal input voltage).

 

Figure 7: Turn-on transient at full load (resistive load) (200 ms/div).Input voltage pre-applied.

Ch1:Vout (50V/div)；Ch2:ON/OFF Input (5V/div))

 

Figure 8: Shut-down fall time at full load (200 ms/div). Ch1:Vout (50V/div)；Ch2:ON/OFF Input (5V/div)

 

Figure 9: Output voltage response to step-change in load current (50%-75%-50% of Iout(max); dI/dt =

0.1A/μs). Load cap: 10μF, 100 mΩ ESR tantalum capacitor and 0.1μF ceramic capacitor. Ch 1: Vout

(1mV/div).

 

Figure 10: Output voltage response to step-change in load current (50%-75%-50% of Iout(max): dI/dt = 2.5A/μs). Load cap: 10μF, 100 mΩ ESR tantalum capacitor and 0.1μF ceramic cap. Ch 1: Vout(1mV/div).

 

6. Physical Information

6.1 Mechanical Outline

 

Notes:

1. Pins 5, 9 (3.81mm) dia.

2. Other pins (2.00mm) dia.

3. Tolerances: x.x ±0.5mm,x.xx ±0.25mm.

 

6.2 Pin Designations

Pin No.	Name	Function
1	Vin(+)	Positive input voltage
2	Enable	TTL input to turn converter on and off, referenced to Vin(-), with internal pull up.
3	Sync	Sync tip
4	Vin(-)	Negative input voltage
5	Vout(-)	Negative output voltage
6	Sense(-)	Remote compensate(-)
7	Trim	Output voltage trim
8	Sense(+)	Positive output voltage
9	Vout(+)	Positive output voltage