|Gaoxin Industrial Park, Guangming New Zone, Shenzhen w prowincji Guangdong, Chiny||Angelwang66@126.com|
|Place of Origin:||China|
|Minimum Order Quantity:||1pcs|
|Delivery Time:||1-8 Weeks|
DC-DC Converters 100W Output 28V YN100-28S28-PEMB
Output power: 100W
Wide input range:18-36Vdc
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
Input under-voltage lock-out
Output voltage trim: ±8% Vout
Package: Open Frame
Quarter Brick: 2.32×1.49×0.45in
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
The YN series is an independently regulated single output converter that uses the industry standard quarter brick package size. The very high efficiency is a result of ENARGY CORP patented topology that uses synchronous rectification and an innovative construction design to minimize heat dissipation and allow extremely high power densities. The power dissipated by the converter is so low that a heat sink is not required, which saves cost, weight, height, and application effort. All of the power and control components are mounted to the multi-layer PCB substrate
with highyield surface mount technology, resulting in a more reliable product.
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
|Input Voltage||45||Vdc||Continuous, non-operating|
|Isolation Voltage||2000||Vdc||Operating transient protection,<100mS|
|Operating Temperature||-55||100||℃||Input to Output|
|Enable to Vin- Voltage||-0.5||10||Vdc|
1.2 Input Characteristics
|Input Voltage Range||18||28||36||Vdc||Continuous|
|Under-Voltage Lockout||17.5||17.9||Vdc||Turn-on Threshold|
|Maximum Input Current||6.6||A||Load=100W ;18Vdc Input|
|Disabled Input Current||10||mA||Enable pin low|
Recommend External Input
|100||μF||Typical ESR ≤0.1-0.2W|
1.3 Output Characteristics
|Output Voltage Range||7.92||8.00||8.08||Vdc||Nominal input; load=1A;25℃|
|Output Current Range||0||12.5||A||18Vdc-36Vdc Input,|
|Current limit||105||130||%||Output voltage 90% of nominal|
|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||13||A||Output voltage <800 mV|
|Ripple (RMS)||50||mV||Nominal input; full load; 20 MHz bandwidth; Figure 7|
|Maximum Output Cap.||7000||μF||Nominal input; load=1A|
|Output Voltage Trim||±8||%||Nominal input; full load; 25°C|
1.4 Dynamic Response Characteristics
|Change In Output Current (di/dt= 0.1A/μs)||360||mV||50% to 75% to 50% Iout max; Figure 5|
|Change In Output Current (di/dt= 2.5A/μs)||400||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|
|Output voltage overshoot||5||%|
1.5 Functional Characteristics
|Switching Frequency||185||230||255||KHz||Regulation stage and Isolation stage|
|Enable(ON/OFF)Control(Pin2)||See part 7.1|
|Enable Voltage Enable Source Current||230||10||Vdc||Enable pin floating|
|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||mΩ||Type: Hiccup Mode, Non-Latching, Auto-Recovery,Threshold,Short-Circuit Resistance|
|Over-Temperature Protection||105||℃||Type: Non-Latching, Auto-Recovery；Threshold, Case Temperature|
1.6 Isolation Characteristics
|Isolation Voltage||1500||Vdc||Input to Output|
|1500||Vdc||Input to Base|
|500||Vdc||Output to Base|
|Isolation Resistance||100||MΩ||At 500Vdc to test it when atmospheric pressure and R.H. is 90%|
2. General Characteristics
|Package Types||Potting Thermal Plastic;None Airproof|
|MTBF ( calculated )||1||MHrs||TR-NWT-000332; 80% load,300LFM, 40℃ Ta|
3. Environmental Characteristics
|Operating Temperature||-55||+100||℃||Extended, base crust temperature|
|Humidity||20||95||%R.H.||Relative Humidity, Non - Condensing|
4. Standards Compliance
|Needle Flame Test (IEC 695-2-2)||Test on entire assembly; board & plastic components UL94V-0 compliant|
5. Qualification Specification
|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|
|Life Test||95% rated Vin and load, units at derating point, 1000 hours|
6. 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: Turn-on transient at full load (resistive load) (200 ms/div).Input voltage pre-applied. Ch 1: Vout (10V/div).Ch 2: ON/OFF input(5V/div)
Figure 4: Shut-down fall time at full load (100 ms/div). Ch 1: Vout (10V/div).Ch 2: ON/OFF input (5V/div).
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 (500mV/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 (500mV/div).
Figure 7: Output voltage ripple at nominal input voltage and rated load current (50mV/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 of the internal ON/OFF circuitry.
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 to 0.5V.
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). (See Figure H).
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. The fundamental 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.
Figure I: Ripple & Noise Standard Testing Means.
10. Physical Information
10.1 Mechanical Outline
1. All Pins , (0.80mm) dia. (8.0mm) . stand off shoulders.
2. Tolerances: x.xx ±0.25mm. (x.x ±0.5mm)
10.2 Pin Designations
|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(+)||Positive output voltage|
|6||Trim||Output voltage trim. Leave Trim pin open for nominal output voltage.|
|7||Vout(-)||Negative output voltage|
|8||Vout(-)||Negative output voltage|