|Category||Power Management => DC-DC Converters|
|Datasheet||Download MFW datasheet
+ 85°C operation to 40 VDC input Fully Isolated Optocoupler feedback Fixed frequency, 245 kHz typical Topology Push-Pull Forward 50 V for 50 ms transient protection Inhibit/sync function Indefinite short circuit protection Remote sense on single models to 84% efficiency
Size (max.): x 0.595 inches x 15.11 mm) See Section B8, case L, for dimensions. Weight: 140 grams typical Screening: Standard or ES.See Section C2 for screening options, see Section A5 for ordering information.
The MFW SeriesTM of DC/DC converters offers to 70 watts of power from single, dual, or triple outputs in one package. Using hybrid thick film technology a power density of over 20 watts per cubic inch is achieved. These devices are packaged in hermetically sealed cold rolled steel enclosures with a tin plate finish making them ideal for use in military, aerospace, or other high reliability applications. Unscreened models are guaranteed to pass a gross leak test (maximum leak rate of 0.001 atm-cc/sec). Environmentally screened units (designated by the /ES suffix) are hermetically solder sealed. See Section C2 for screening specifications. All models of the MFW Series are designed to provide full power operation over an input voltage range to 40 VDC. Operation below an input of 19 volts, including operation in MIL-STD-704E emergency power conditions, is possible with derated output power. Please refer to the derating information and the low voltage drop-out graphs (Figures 10 and 11) on the following pages.
Full load operation of any of the MFW Series converters is available at case temperatures + 85°C. Operation +125°C is possible with derated output power. The MFW Series converters are provided in a flange mount case designed to facilitate the removal of internally generated heat. Because of this, heat sinking requirements are minimal. Sustained full power operation does however require that an efficient heat sink be attached to the baseplate. Please refer to the heat sink requirements section for more information.
The MFW Series converters utilize a quasi-square wave forward converter design with a nominal switching frequency of 245 kHz. Isolation between input and output is provided with a transformer in the forward power loop and a wideband, temperature insensitive optical link in the feedback control loop. Output regulation is accomplished with constant frequency pulse width modulation. In addition, the load regulation of the single output models is further enhanced through the use of remote output voltage sense pins to overcome the adverse effects of line resistance voltage drops. Short circuit protection is provided by detecting peak primary switching current on a cycle by cycle basis and limiting it to approximately 130% of the full load input current. This method results in quick and positive current limiting under short circuit conditions.
Standard on all models of the MFW Series is a dual mode inhibit/sync pin. This pin serves as both an output inhibit and as a synchronization input. In the inhibit mode an open collector TTL compatible low (<0.8 V) will disable internal switching thereby inhibiting the unit's output. Inhibiting in this manner results in an extremely low quiescent current. Since a pull-up resistor is included internally, this pin may be left open should the inhibit function not be desired. In a digital system it is often desirable to synchronize the input or output ripple with the system clock. For this reason each model of the MFW Series was designed to synchronize with a system clock applied to the inhibit/sync pin. Please refer to the technical data section for timing details for the external sync feature.
The MFW Series converters offer low noise on both the input and output lines. A two section, four pole LC input filter is included to provide very low reflected line ripple current. Adherence (CE03) is possible with the addition of the FMB-461 filter. Output ripple is maintained at less than 50 mV p-p for single and dual output models and 85 mV for triple output models.
Sync to 370 kHz.) Duty cycle 70% min, 98% max Logic low 0.8 V max Logic high 4.5 V min Referenced to input common If sync is not used, leave unconnected Inhibit TTL Open Collector Logic low (output disabled) Inhibit pin current 1 mA max Referenced to input common Logic high (output enabled) 4.5 V
Output Voltage Temperature Coefficient 150 ppm/°C, typical Input to Output Capacitance 160 pF, typical Isolation 100 megohm minimum 500 V Conversion Frequency Free run mode 245 kHz, typical Inhibit Pin Voltage (unit enabled) 5.5 V
Output Power to 70 watts depending on model Lead Soldering Temperature (10 sec per lead) 300°C Storage Temperature Range (Case) to +125°C
Input Voltage Range to 40 VDC continuous (see Derating) Case Operating Temperature (Tc) to +85°C full power
Temperatures are referenced to the temperature at the converter's baseplate Linearly derate output power/current from at 125°C. Above 105°C linearly derate steady state input voltage to 33 volts at 125°C. Indefinite short circuit protection is not guaranteed above 85°C case. Operation below an input voltage of 19 volts, including operation in MILSTD-704E emergency power conditions, is possible with derated output power. See Figures 10 and 11.Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
SINGLE OUTPUTS PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT OUTPUT POWER OUTPUT RIPPLE LINE REGULATION LOAD REGULATION INPUT VOLTAGE INPUT CURRENT INPUT REFL. RIPPLE EFFICIENCY STARTUP DELAY CONDITION FULL LOAD VIN TO +85°C FULL LOAD BW 2 MHz VIN 40 NO LOAD TO FULL MFW2805S MIN 19 NO LOAD INHIBITED FULL LOAD BW 10 MHz WITH LOW IMPEDANCE SOURCE 78 TYP MAX MFW2812S MIN TYP MAX MFW2815S MIN. TYP MAX UNITS VDC W mV p-p mV VDC mA p-p % ms
DUAL AND TRIPLE OUTPUTS PARAMETER OUTPUT VOLTAGE CONDITION FULL LOAD MAIN DUAL MAIN DUAL MIN MFW2812D TYP MAX ±12.00 ±12.12 MAIN DUAL MAIN DUAL MAIN DUAL MFW2815D MIN TYP MAX MIN MFW28512T TYP MAX MINOUTPUT VIN TO 40 OUTPUT POWER1, 2 OUTPUT RIPPLE MAIN ±DUAL TOTAL FULL LOAD BW 2 MHz
DUAL REGULATION +PO 35 W PO 35 W +PO 50 W PO 20 W MAIN +PO W CROSS5 REGULATION DUAL +PO 27 W PO 3 W MAIN +PO 30 W DUAL ±PO 15 W INPUT VOLTAGE INPUT CURRENT INPUT REFL. RIPPLE EFFICIENCY STARTUP DELAY NO LOAD INHIBITED FULL LOAD BW 10 MHz
Notes 1. On dual output models the maximum combined output power is 70 watts. A maximum W) is available from any single output. 2. On triple output models the maximum combined output power is 60 watts. A maximum of 50 watts is available from a single output.
3. Balanced loads. 4. Regulation effect on the negative dual output during the defined conditions. 5. Regulation effect on both dual outputs during the defined conditions.
|Related products with the same datasheet|
|Some Part number from the same manufacture Interpoint Corporation|
SMRT28512T/HF : 3-OUTPUT 15 W DC-DC REG PWR SUPPLY MODULE Specifications: Package Type: Other, HERMETIC SEALED PACKAGE-14/12 ; Output Voltage: 2.45 to 11.2 volts ; Input Voltage: 19 to 56 volts ; Output Power: 15 watts (0.0201 HP) ; Operating Temperature: -55 to 125 C (-67 to 257 F)
SMRT285D/HR : 2-OUTPUT 15 W DC-DC REG PWR SUPPLY MODULE Specifications: Package Type: Other, HERMETIC SEALED PACKAGE-14/12 ; Output Voltage: 2.45 to 11.2 volts ; Input Voltage: 19 to 56 volts ; Output Power: 15 watts (0.0201 HP) ; Operating Temperature: -55 to 125 C (-67 to 257 F)
5962-9162501HXX : 2-OUTPUT 15 W DC-DC REG PWR SUPPLY MODULE Specifications: Package Type: DIP, Other, MODULE, DIP-8 ; Output Voltage: 14.85 to 15.15 volts ; Input Voltage: 16 to 40 volts ; Output Power: 15 watts (0.0201 HP) ; Operating Temperature: -55 to 125 C (-67 to 257 F)
5962-9309402HXC : 3-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE Specifications: Package Type: DIP, Other, HERMETIC SEALED, DIP-10 ; Output Voltage: 4.71 to 5.29 volts ; Input Voltage: 16 to 40 volts ; Output Power: 30 watts (0.0402 HP) ; Operating Temperature: -55 to 125 C (-67 to 257 F)
5962-9956401HUA : 1-OUTPUT 120 W DC-DC REG PWR SUPPLY MODULE Specifications: Package Type: Other, FM-12 ; Output Voltage: 14.85 to 15.15 volts ; Input Voltage: 16 to 40 volts ; Output Power: 120 watts (0.1608 HP) ; Operating Temperature: -55 to 125 C (-67 to 257 F)
5962L0052202KXC : 2-OUTPUT 5.23 W DC-DC REG PWR SUPPLY MODULE Specifications: Package Type: DIP, Other, HERMETIC SEALED, DIP-8 ; Output Voltage: 4.75 to 5.3 volts ; Input Voltage: 16 to 40 volts ; Output Power: 5.23 watts (0.0070 HP) ; Operating Temperature: -55 to 125 C (-67 to 257 F)
5962P9214402HZC : 1-OUTPUT 12 W DC-DC REG PWR SUPPLY MODULE Specifications: Package Type: DIP, Other, DIP-8 ; Output Voltage: 4.7 to 5.3 volts ; Input Voltage: 16 to 40 volts ; Output Power: 12 watts (0.0161 HP) ; Operating Temperature: -55 to 125 C (-67 to 257 F)
78ST112HC : Plug-in Power Solutions->Non-Isolated->Single Posi. ti 78ST112, 12Vout 1.5A Wide Input Positive Step-down Isr.
GL1500 : In-line High Current Silicon Bridge Rectifiers ( Voltage - 50 to 800 Volts Current - 15 to 35 Amperes ).
LM5008 : High Voltage (100V) Step Down Switching Regulator. LM5008 High Voltage (100V) Step Down Switching Regulator The LM5008 Step Down Switching Regulator all of the functions needed to implement a low cost, efficient, Buck bias regulator. This high voltage regulator contains 100 V N-Channel Buck Switch. The device is easy to implement and is provided in the MSOP-8 and the thermally enhanced LLP-8 packages.
LT1241 : LT1241, Series, 500kHz Current-mode PWM Controllers. LT1241 Series High Speed Current Mode Pulse Width Modulators Low Start-Up Current: 250µA 50ns Current Sense Delay Current Mode Operation: To 500kHz Pin Compatible with UC1842 Series Undervoltage Lockout with Hysteresis No Cross-Conduction Current Trimmed Bandgap Reference 1A Totem Pole Output Trimmed Oscillator Frequency and Sink Current Active Pull-Down.
M62032FP : Voltage Detecting, System Resetting ic. GENERAL The an IC for detection of two different input voltages to reset almost all logic circuits including MCU. It contains a delay circuit with which any delay time can be obtained only by adding an external capacitor. The IC is widely applicable to a battery check circuit, a level detection circuit, a waveform shaping circuit, etc. A small number.
MM1426 : Driver ic For Vibrators. This IC was developed as a driver for vibrator motors, and has an output voltage set at 1.3V. The input voltage is monitored, and if a constant voltage is not input the output is turned off. 1. Compact package for small mounting area. 2. In addition to output control through the input voltage, the IC can be turned on and off through the CONT pin. 3. Good.
NCP500SN185T1 : 150mA, 1.85V, CMOS Low Dropout Regulator With Enable, Package: SOT-23 / TSOP-5, Pins=5.
P8TG-2405Z41M : Power/w = 1,5 ;; Input/vdc = 9-36/18-72 ;; Output/vdc = +/-3,3/5/12/15/18Regulated ;; ISOlation = 1500V ;; Package = DIP24M.
PKF5113 : DC/DC Converter. SMD with ultra-low component height mm (0.315 in.) 81% efficiency at full load 1,500 Vdc isolation at full load Switching frequency synchronization MTBF >10 million hours at +50°C case temperature Low EMI The MacroDensTM 11W PKF 5113 I, true component level on-board DC/DC power modules, are intended as distributed power sources in decentralized power.
SW-289RTR : GAAS DPDT Switch DC - 2 GHZ. Very Low Power Consumption: 100 µW Low Insertion Loss: 0.5 dB High Isolation: to 2 GHz Very High Intercept Point: 48 dBm IP3 Nanosecond Switching Speed Temperature Range: to +85°C Low Cost SOIC14 Plastic Package Tape and Reel Packaging Available1 M/A-COM's is a GaAs MMIC DPDT switch in a low cost SOIC 14-lead surface mount plastic package. The SW-289.
UC2842AD : Current Mode. ti UC2842A, Current Mode PWM Controller. Optimized for Off-line and to DC Converters Low Start Up Current (<0.5mA) Trimmed Oscillator Discharge Current Automatic Feed Forward Compensation Pulse-by-Pulse Current Limiting Enhanced Load Response Characteristics Under-Voltage Lockout With Hysteresis Double Pulse Suppression Part # UVLO 16.0V 8.5V UVLO Off 10.0V 7.9V Maximum Duty Cycle The UC1842A/3A/4A/5A.
UPC7815AHF : Three Terminal Positive Voltage Regulators.
VRE125/127 : . WIDE OPERATING RANGE: to +200°C VERY HIGH ACCURACY: V ±0.4 mV EXTREMELY LOW DRIFT: to +200°C) EXCELLENT STABILITY: 6 ppm / 1000Hrs. EXCELLENT LINE REGULATION: 6 ppm / V Typ. HERMETIC 14-PIN DIP APPLICATIONS PRECISION A/D and D/A CONVERTERS ACCURATE COMPARATOR THRESHOLD VOLTAGE HIGH RESOLUTION SERVO SYSTEMS HIGH TEMPERATURE TEST and MEASUREMENT SYSTEMS.
BQ20Z90-V150 : SBS v1.1 Compliant Gas Gauge for Use With the bq29330 The bq20z90 SBS-compliant gas gauge IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z90 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog.
TLC5928 : 16 Channels Constant Current LED Driver With LED Open Detection The TLC5928 is a 16-channel, constant current sink LED driver. Each channel can be turned on/off by writing serial data to an internal register. The constant current value of all 16 channels is set by a single external resistor. The TLC5928 has two error detection circuits: one for LED open.
LM501202-L-C-300 : LM Series High Power Surface Mount Limiter Modules The RoHs compliant LM Series of Surface Mount Limiter Modules provide exceptional broadband performance ( 20 â€“ 8,000 ) MHz in a low profile 8mm x 5 mm x 2.5 mm outline suitable for higher peak and average power receiver protector applications..
PT7M7825LTA : µ µ µ µ µP Supervisor Circuits The PT7M7xxx family microprocessor (µP) supervisory circuits are targeted to improve reliability and accuracy of power-supply circuitry in µP systems. These devices reduce the complexity and number of components required to monitor power-supply and battery functions..
CM2830AGEIM89 : 300mA CMOS LDO The CM2830/CM2830A family is a positive voltage linear regulator developed utilizing CMOS technology featured low quiescent current (30 Ã‚µA typ.), low dropout voltage, and high output voltage accuracy. Built-in low on-resistance transistor provides low dropout voltage and large output current. A 2.2 Ã‚µF or greater can be used as an output.