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300W DC-DC Converter Output 12V YN300-28S12-PEMB

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300W DC-DC Converter Output 12V YN300-28S12-PEMB

China 300W  DC-DC Converter Output 12V  YN300-28S12-PEMB supplier

Large Image :  300W DC-DC Converter Output 12V YN300-28S12-PEMB

Product Details:

Place of Origin: China
Brand Name: Enargy
Model Number: YN300-28S12-PEMB

Payment & Shipping Terms:

Minimum Order Quantity: 1pcs
Price: Negotiation
Delivery Time: 1-8 Weeks
Payment Terms: Negotiation
Supply Ability: 1000Pcs/week
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Detailed Product Description

DC-DC Converters 300W Output 12V   YN300-28S12-PEMB

 

Key Features

Output power: 150W RMS,300W Peak to Peak

Wide input range:22-36Vdc

High conversion efficiency: Up to 91%

Line regulation to ±1.0%

Load regulation to ±1.0%

Fixed operating frequency

Isolation voltage :1500V

Enable (ON/OFF) control

Output over-load protection

Hiccup mode short circuit protection

Over-temperature protection

Input under-voltage lock-out

 

Package: Open Frame

Quarter Brick: 2.32×1.49×0.45in

59×38×11.5mm

 

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

Electrical characteristics apply over the full operating range of input voltage, output load and base plate temperature,unless otherwise specified. All temperatures refer to the operating temperature at the center of the base plate. All data testing at Ta=25oC except especial definition.

 

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

-55

 

100

 

Storage Temperature

-65

 

115

 

Enable to Vin- Voltage

-0.5

 

10

Vdc

 

 

1.2 Input Characteristics

Parameter

Min

Typ

Max

Units

Notes

Input Voltage Range

22

28

36

Vdc

Continuous

Under-Voltage Lockout

 

21

21.9

Vdc

Turn-on Threshold

19.5

20.5

 

Vdc

Turn-off Threshold

Maximum Input Current

 

 

10

A

Load=150W RMS;22Vdc Input

Efficiency

 

90

 

%

Figures 1-2

Disabled Input Current

 

10

 

mA

Enable pin low

Recommend External Input

Capacitance

 

100

 

μF

Typical ESR ≤0.1-0.2W

 

1.3 Output Characteristics

Parameter

Min

Typ

Max

Units

Notes

Output Voltage Range

11.88

12.00

12.12

Vdc

Nominal input; load=1A;25℃

Output Current Range

1

12.5

25.0

A

Dynamic Load; Load On

Time=7mS/25A; Load Off

Time=28mS/1A

22Vdc-36Vdc Input,

Output Current Range

1

 

12.5

A

RMS;

Line Regulation

 

0.5

±1.0

%

Low line to high line; full load

Load Regulation

 

0.5

±1.0

%

No load to full load; nominal input

Temperature Regulation

 

±0.005

±0.02

% / °C

Over operating temperature range

Short Circuit Current

1

 

26

A

Output voltage <800 mV

Ripple (RMS)

 

120

 

mV

Nominal input; full load; 20 MHz

bandwidth; Figure 7

Noise(Peak-to-Peak)

 

240

 

mV

Maximum Output Cap.

 

 

5000

μF

Nominal input; load=1A

 

1.4 Dynamic Response Characteristics

Parameter

Min

Typ

Max

Units

Notes

Change In Output Current

(di/dt= 0.1A/μs)

 

430

 

mV

50% to 75% to 50% Iout max; Figure 5

Change In Output Current

(di/dt= 2.5A/μs)

 

450

 

mV

50% to 75% to 50% Iout max; Figure 6

 

 

 

 

 

 

Settling Time

 

300

 

μS

To within 1% Vout nom.

Turn-on Time

 

25

 

mS

Full load; Vout=90% nom. Figure 3

Shut-down Fall Time

 

5

 

mS

Full load; Vout=10% nom. Figure 4

 

1.5 Functional Characteristics

Parameter

Min

Typ

Max

Units

Notes

Switching Frequency

270

300

330

KHz

Regulation stage and Isolation stage

Enable(ON/OFF)Control(Pin2)

See part 7.1

Enable Voltage

Enable Source Current

 

 

10

Vdc

Enable pin floating

 

 

0.5

mA

 

Enable (ON - OFF Control)

Positive Logic

3.5

 

10

Vdc

ON-Control, Logic high or floating

-0.5

 

0.5

Vdc

OFF-Control, Logic low

Short-Circuit Protection

 

 

65

Type: Hiccup Mode, Non-Latching,

Auto-Recovery,Threshold,Short-Circuit

Resistance

Over-Temperature

Protection

 

105

 

Type: Non-Latching, Auto-Recovery;

Threshold, PCB Temperature

 

15

 

Hysteresis

 

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

100

 

 

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

 

2.4(75)

 

Oz (g)

Open Frame

MTBF ( calculated )

1

 

 

MHrs

TR-NWT-000332; 80% load,300LFM,

40℃ Ta

 

3. Environmental Characteristics

Parameter

Min

Typ

Max

Units

Notes

Operating Temperature

-55

 

+100

Extended, base crust temperature

Storage Temperature

-65

 

+115

Ambient

Temperature Coefficient

 

 

±0.02

%/℃

 

Humidity

20

 

95

%R.H.

Relative Humidity, Non - Condensing

 

4. Standards Compliance

Parameter

Notes

UL/cUL60950

 

EN60950

 

GB4943

 

Needle Flame Test (IEC 695-2-2)

Test on entire assembly; board & plastic components UL94V-0 compliant

IEC 61000-4-2

 

 

5. Qualification Specification

Parameter

Notes

Vibration

10-55Hz sweep, 1 min./sweep, 120 sweeps for 3 axis

Mechanical Shock

100g min, 2 drops in x and y axis, 1 drop in z axis

Cold(in operation)

IEC60068-2-1 Ad

Damp Heat

IEC60068-2-67 Cy

Temperature Cycling

-40°C to 100°C, ramp 15°C/min., 500 cycles

Power/Thermal Cycling

Vin = min to max, full load, 100 cycles

Design Marginality

Tmin-10°C to Tmax+10°C, 5°C steps, Vin = min to max, 0-105% load

Design Marginality

95% rated Vin and load, units at derating point, 1000 hours

Design Marginality

IEC60068-2-20

 

6. Typical Wave And Curves

300W  DC-DC Converter Output 12V  YN300-28S12-PEMB300W  DC-DC Converter Output 12V  YN300-28S12-PEMB

 

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.

300W  DC-DC Converter Output 12V  YN300-28S12-PEMB300W  DC-DC Converter Output 12V  YN300-28S12-PEMB

 

Figure 3: Turn-on transient at full load (resistive load) (100
ms/div).Input voltage pre-applied.
Ch 1: Vout (10V/div).Ch 2: ON/OFF input(2V/div)

Figure 4: Shut-down fall time at full load (40 ms/div).
Ch 1: Vout (10V/div).Ch 2: ON/OFF input (2V/div).

300W  DC-DC Converter Output 12V  YN300-28S12-PEMB300W  DC-DC Converter Output 12V  YN300-28S12-PEMB

 

Figure 5: 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 and0. 1μF
ceramic capacitor. Ch 1: Vout (200mV/div).

Figure 6: 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 (200mV/div).

300W  DC-DC Converter Output 12V  YN300-28S12-PEMB

 

Figure 7: Output voltage ripple at nominal input voltage and
rated load current (100mV/div). Load capacitance:0.1μF
ceramic capacitor and 10μF tantalum capacitor. Bandwidth:
20 MHz.

 

7. Function Specifications


7.1 Enable (ON/OFF) Control (Pin 2)
The Enable pin allows the power module to be switched on and off electronically. The Enable (ON/OFF) function
is useful for conserving battery power, for pulsed power application or for power up sequencing.
The Enable pin is referenced to the -Vin. It is pulled up internally, so no external voltage source is required. An
open collector (or open drain) switch is recommended for the control of the Enable pin.
When using the Enable pin, make sure that the reference is really the -Vin pin, not ahead of EMI filtering or
remotely from the unit. Optically coupling the control signal and locating the opto coupler directly at the module will
avoid any of these problems. If the Enable pin is not used, it can be left floating (positive logic) or connected to the -Vin
pin (negative logic).Figure A details five possible circuits for driving the ON/OFF pin. Figure B is a detailed look ofthe internal ON/OFF circuitry.
300W  DC-DC Converter Output 12V  YN300-28S12-PEMB300W  DC-DC Converter Output 12V  YN300-28S12-PEMB

 

Figure A: Various circuits for driving the ON/OFF pin.

Figure B: Internal ON/OFF pin circuitry.

 

7.2 Remote Sensing (Pins 7 and 5)

 

Remote sensing allows the converter to sense the output
voltage directly at the point of load and thus automatically
compensates the load conductor distribution & contact losses
(Figure C). There is one sense lead for each output terminal,
designated +Sense and -Sense. These leads carry very low
current compared with the load leads. Internally a resistor is
connected between sense terminal and power output terminal.
If the remote sense is not used, the sense leads needs to be
shorted to their respective output leads(Figure D).

Care has to be taken when making output connections. If
the output terminals should disconnect before the sense lines,
the full load current will flow down the sense lines and
damage the internal sensing resistors. Be sure to always power
down the converter before making any output connections.
The maximum compensation voltage for line drop is up to0.5V.

300W  DC-DC Converter Output 12V  YN300-28S12-PEMB300W  DC-DC Converter Output 12V  YN300-28S12-PEMB

 

Figure C: Remote Sense Connection.

Figure D: Remote Sense is not Used.

 

7.3 Protection Features

 

·Input Under-Voltage Lockout: The converter is designed to turn off when the input voltage is too low, helping avoid
an input system instability problem, The lockout circuitry is a comparator with DC hysteresis. When the input voltage is
rising, it must exceed the typical Turn-on Voltage Threshold value(listed on the specification page) before the converter
will turn on. Once the converter is on, the input voltage must fall below the typical Turn-off Voltage Threshold value
before the converter will turn off.

·Output Current Limit: The maximum current limit remains constant as the output voltage drops. However, once the
impedance of the short across the output is small enough to make the output voltage drop below the specified Output
DC Current-Limit Shutdown Voltage, the converter into hiccup mode indefinite short circuit protection state until the
short circuit condition is removed. This prevents excessive heating of the converter or the load board.
·Over-Temperature Shutdown: A temperature sensor on the converter senses the average temperature of the module.
The thermal shutdown circuit is designed to turn the converter off when the temperature at the sensed location reaches
the Over-Temperature Shutdown value. It will allow the converter to turn on again when the temperature of the sensed
location falls by the amount of the Over-Temperature Shutdown Restart Hysteresis value.

 

8. Typical Application And Design Consideration

 

8.1 Input Filtering

DC-DC converters, by nature, generate significant levels of
both conducted and radiated noises. The conducted noises included
common mode and differential mode noises. The common mode
noise is directly related to the effective parasitic capacitance between
the power module input conductors and chassis ground. The
differential mode noise is across the input conductors. It is
recommended to have some level of EMI suppression to the power
module.
Conducted noise on the input power lines can occur as either
differential or common-mode noise currents. The required standard
for conducted emissions is EN55022 Class A (FCC Part15). (SeeFigure H).

300W  DC-DC Converter Output 12V  YN300-28S12-PEMB300W  DC-DC Converter Output 12V  YN300-28S12-PEMB

 

300W  DC-DC Converter Output 12V  YN300-28S12-PEMB

Figure H: Input Filtering.

 

9. Test Method

 

9.1 Output Ripple & Noise Test

The output ripple is composed of fundamental frequency ripple and high frequency switching noise spikes. Thefundamental switching frequency ripple (or basic ripple) is in the 100KHz to 1MHz range; the high frequency switching
noise spike (or switching noise) is in the 10 MHz to 50MHz range. The switching noise is normally specified with 20
MHz bandwidth to include all significant harmonics for the noise spikes.
The easiest way to measure the output ripple and noise is to use an oscilloscope probe tip and ground ring pressed
directly against the power converter output pins, as shown below. This makes the shortest possible connection across
the output terminals. The oscilloscope probe ground clip should never be used in the ripple and noise measurement. The
ground clip will not only act as an antenna and pickup the radiated high frequency energy, but it will introduce the
common-mode noise to the measurement as well.
The standard test setup for ripple & noise measurements is shown in Figure I. A probe socket (Tektronix, P.N.
131.0258-00) is used for the measurements to eliminate noise pickup associated with long ground clip of scope probes.

300W  DC-DC Converter Output 12V  YN300-28S12-PEMB300W  DC-DC Converter Output 12V  YN300-28S12-PEMB

 

300W  DC-DC Converter Output 12V  YN300-28S12-PEMB

Figure I: Ripple & Noise Standard Testing Means.

 

10. Physical Information


10.1 Mechanical Outline

300W  DC-DC Converter Output 12V  YN300-28S12-PEMB

 

Notes:
1. All Pins , (0.80mm) dia. (8.0mm) . stand off shoulders.
2. Tolerances: x.xx ±0.25mm. (x.x ±0.5mm)

 

 

 

 

 

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