DC-DC converter module 8V

DC-DC Converters 100W Output 28V YN100-24S28-PEC

 

Key Features

Output power: 100W

Wide input range: 18-36Vdc

High conversion efficiency: Up to 93%

Line regulation to ±1%

Load regulation to ±1%

Isolation voltage :1500V

Enable (ON/OFF) control

Output over-Current protection

Hiccup mode short circuit protection

Over-temperature protection

Input under-voltage lock-out

 

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	Operating transient protection,<100mS
Isolation Voltage			2000	Vdc	Input to Output
Operating Temperature	-40		100	℃	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			6.7	A	Vin min,Output full load
Efficiency		92		%	Rated input;Rated load
Dissipation,standby		5	13	W	No Load

 

1.3 Output Characteristics

Parameter	Min	Typ	Max	Units	Notes
Output Voltage Set point	27.72	28.00	28.28	Vdc	Rated input voltage, No load
Output Voltage Range	27.50	28.00	28.50	Vdc
Output Current Range	0		3.57	A
Line Regulation		±0.5	±1.0	%
Load Regulation		±0.09	±1.0	%
Current limit	3.75	4.28	4.64	A	95% of the rated output voltage
Short Circuit Current	3.57	3.57	4.28	A
RMS		200		mV	Nominal input; full load; 20MHz,bandwidth
peak-to-peak		280		mV
Capacitive load from the machine			2200	μF

 

1.4 Dynamic Response Characteristics

Parameter	Min	Typ	Max	Units	Notes
Change In Output Current		700		mV	50% to 75% to 50% Iout max; (di/dt= 0.1A/µs)
		720		mV	50% to 75% to 50% Iout max; (di/dt= 2.5A/µs)
Dynamic recovery time		300		μS
Output rise time		15		mS	Starting from vin to vout rise to 90%
Turn-off overshoot			5	mS

 

1.5 Functional Characteristics

Parameter	Min	Typ	Max	Units	Notes
Switching Frequency	187	230	255	KHz
Output Trim		8		% Vout	tTrim Up
		8			Trim Down
Enable Current			0.5	mA
Enable (ON/OFF)	3.5		10	Vdc	ON-control, Logic high or floating
	-0.5		0.5	Vdc	OFF-control, Logic low
Over-Load Protection	105	120	130	%	Current mode,Pulse current(100% rared load)
Short circuit protection			65	mΩ	Hiccup mode,since the recovery
Over- Temperature Protection		105		℃	Protect point,In view of PCB Temperature
		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
	500			Vdc	Output to Base
Isolation Resistance	10			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		2.5(72)		Oz (g)
MTBF ( calculated )	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	℃	Ambient
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 maximum

input voltage at 25°C.

Figure 2: Efficiency at nominal output voltage and 60%

rated power vs. airflow rate for ambient air temperatures of

25°C, 40°C, and 55°C (nominal input voltage).

 

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 (20 mV/div). Load

capacitance: 0.1μF ceramic capacitor and 10μF tantalum

capacitor. Bandwidth: 20 MHz.

 

Figure 5: Thermal plot of converter at full load

current(100W) 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(100W) 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)

(100ms/div).Input voltage pre-applied.

Ch1:ON/OFF Input (1V/div；Ch2:Vout (20V/div)

Figure 8: Shut-down fall time at full load (40 ms/div).

Ch1:ON/OFF Input (1V/div；Ch2:Vout (20V/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. Ch1: Vout

(1V/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 mW ESR tantalum capacitor and 0.1μF ceramic

cap. Ch1:Vout (1V/div)

 

6. Physical Information

 

6.1 Mechanical Outline

 

Notes:

1. Pins 6, 10 are 1.52mm dia. with 2.16mm dia.

2. Other pins 1.02mm dia. with 1.65mm 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	NU	NU
3	Enable	TTL input to turn converter on and off, referenced to Vin(-), with internal pull up.
4	NU	NU
5	Vin(-)	Negative input voltage
6	Vout(-)	Negative output voltage
7	Sense(-)	Negative remote sense. Sense(-) may be connected to Vout(-) or left open.
8	Trim	Output voltage trim. Leave Trim pin open for nominal output voltage.
9	Sense(+)	Positive remote sense. Sense(+) may be connected to Vout(+) or left open.
10	Vout(+)	Positive output voltage