24v to 12v dc to dc converter 13W Military Power Supply MT13-24S12-PEI

DC-DC Converters 13W Output 12V MT13-24S12-PEI

 

 

Key Features

Output power: 13W

Wide input range:18-36Vdc

High conversion efficiency: 88%

Line regulation to ±0.5%

Load regulation to ±0.5%

Isolation voltage :1,500V

Enable (ON/OFF) control

Output over-current protection

Hiccup mode short circuit protection

Over-temperature protection

Input under-voltage lock-out

Output voltage trim -5～+10 % Vout

 

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
			36	Vdc	Continuous, operating
			45	Vdc	Operating transient protection,<100mS
Isolation voltage			2000	Vdc	Input to output
Operating Temperature	-20		85	℃	In view of PCB Temperature
Storage Temperature	-30		95	℃
Enable to Vin- Voltage	-0.3		10	Vdc

 

1.2 Input Characteristics

Parameter	Min	Typ	Max	Units	Notes
Input Voltage Range	18	24	36	Vdc
Under-Voltage Lockout		17	17.5	Vdc	Recovery point
	16	16.5		Vdc	Protect point
Maximum Input Current			0.9	A	Input Vin min,Output full load
Efficiency		88		%	Rated Input;Rated Load
Dissipation,standby		0.3		W	No Load

 

1.3 Output Characteristics

Parameter	Min	Typ	Max	Units	Notes
Output Voltage Set Point	11.85	12.00	12.15	Vdc	Nominal input. No Load
Output Voltage Range	11.75	12.00	12.25	Vdc
Output Current Range	0.01		1.1	A
Line Regulation		±0.02	±0.5	%
Load Regulation		±0.02	±0.50	%
Current Limit	1.15	1.4	1.70	A	Output voltage 95% of nominal
Short Circuit Current	1		3	A
Ripple (RMS)		25		mV	Nominal input; full load; 20 MHz bandwidth.
Noise(Peak-to-Peak)		80		mV
Maximum Output Cap			3000	μF

 

1.4 Dynamic Response Characteristics

Parameter	Min	Typ	Max	Units	Notes
Change In Output Current		100		mV	50% to 75% to 50% Iout max; (di/dt=0.1A/μs).
		100		mV	50% to 75% to 50% Iout max; (di/dt=0.3A/μs).
Dynamic recovery time		200		µS
Turn-on Time		2		mS	Starting from vin to vout rise to 90%
Turn-off overshoot		2		%

 

1.5 Functional Characteristics

Parameter	Min	Typ	Max	Units	Notes
Switching Frequency	180	200	250	KHz
Output Voltage Trim			10	% Vout	Trim Up
			5		Trim Down
Enable Voltage			0.5	mA
Enable (ON/OFF) Control Positive Logic	2.5		10	Vdc	ON-Control, Logic high or floating
	0		1.5	Vdc	OFF-Control, Logic low
Over-Load Protection	105	130	150	%	Current mode,Pulsecurrent(100% raredload)
Short-Circuit Protection			65	mΩ	Hiccup mode,since the recovery
Over-Temperature Protection		105		℃	Type: Non-Latching, Auto-Recovery；Threshold, PCB Temperature
		90		℃	Recovery point

 

1.6 Isolation Characteristics

Parameter	Min	Typ	Max	Units	Notes
Isolation Voltage	1500			Vdc	Input to Output
	1500			Vdc	In to base
	500			Vdc	Out to base
Isolation Resistance	10			MΩ	At 500VDC to test it when atmosphericpressure and R.H. is 90%
Isolation Capacitance		1000		pF

 

2. General Characteristics

Parameter	Min	Typ	Max	Units	Notes
Weight		20		g
MTBF ( calculated )	1			MHrs	TR-NWT-000332;80% load,300LFM, 40℃ Ta

 

3. Environmental Characteristics

Parameter	Min	Typ	Max	Units	Notes
Operating Temperature	-20		85	℃	Base PCB temperature
Storage Temperature	-30		95	℃	Ambient 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
EN60950
GB4943
IEC 61000-4-2

 

5. Typical Wave And Curves

 

 

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

Figure 2: Efficiency at nominal output voltage and60% rated power vs. airflow rate for ambient airtemperatures of 25°C.

 

 

Figure 3: Maximum output power derating curves vs.ambient air temperature for airflow rates of 0 LFM through400 LFM with air flowing from pin 1 to pin 3 (nominalinput voltage).

Figure 4: Output voltage ripple at nominal inputvoltage and rated load current (20 mV/div). Loadcapacitance: 0.1μF ceramic capacitor and 10μFtantalum capacitor. Bandwidth: 20 MHz.

 

 

Figure 5: Ambient temperature is 25 ℃, the loadcarried by the load (power 13W), the thermalimaging map.

 

 

Figure 6: Turn-on transient at full load (resistiveload) (100 ms/div).Input voltage pre-applied.Ch1:Vout (5V/div)；Ch2:ON/OFF Input (5V/div)

Figure 7: Shut-down fall time at full load (2ms/div).Ch1:Vout (5V/div)；Ch2:ON/OFF Input (5V/div)

 

 

Figure 8: Output voltage response to step-change inload current (50%-75%-50% of Iout(max); dI/dt =0.1A/μs). Load cap: 10μF, 100 mΩ ESR tantalumcapacitor and 1μF ceramic capacitor. Ch1: Vout(200mV/div)

Figure 9: Output voltage response to step-change inload current (50%-75%-50% of Iout(max): dI/dt =0.3A/μs). Load cap: 220μF, 30mΩ ESR tantalumcapacitor and 1μF ceramic cap. Ch1: Vout (200mV/div)

 

6. Physical Information

6.1 Mechanical Outline

 

 

Notes:

1. All other pins are 0.6mm dia

2. Pin4 and Pin6 are parallel connection. The user could achieve the function Vout(+) whether connect either two pin orboth.

3. Tolerances: x.xx±0.02 in. (x.x±0.5mm).x.xxx±0.010 in. (x.xx±0.25mm)

 

6.2 Pin Designations

Pin No.	Name	Function
1	Vin(-)	Negative Input voltage
2	Enable	TTL input to turn converter on and off, referenced to Vin(-), with internal pull up.
3	Vin(+)	Positive Input voltage
4	Vout(+)	Positive Output Voltage
5	Vout(-)	Negative Output Voltage
6	Vout(+)	Positive Output Voltage
7	Trim	Output Voltage Trim