View LF722RW_4458058.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

LF700RW Series
Wide Input, 7.5W SMT Single & Dual Output DC/DC Converters
Electrical Specifications
Specifications typical @ +25C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Input
Key Features:
* 7.5W Output Power * Wide 2:1 Inputs * Miniature SMT Case * Tight Line/Load Regulation * 1,500 VDC Isolation * -40C to +60C Operation * 21 Standard Models * 1.0 MH MTBF Minimum * Industry Standard Pin-Out
Parameter Input Start Voltage Reverse Polarity Input Current Short Circuit Input Power Input Filter
Conditions 12 VDC Input 24 VDC Input 48 VDC Input
Max. 9.0 18.0 36.0 1.0 1,000 3,000 (Pi) Filter (Meets EN55022 Class A) Min. Typ. 0.5 0.5 0.1 0.3 50 Max. 1.0 2.0 0.3 1.0 85 100 15 165 500 6 0.02
Min. 7.5 14.0 30.0
Typ. 8.0 16.0 33.0
Units VDC A mW
Output
Parameter Output Voltage Accuracy Output Voltage Balance Line Regulation Load Regulation Ripple & Noise (20 MHz) (Note 1) Ripple & Noise (20 MHz) Ripple & Noise (20 MHz) Output Power Protection Transient Response Time (Note 2) Transient Response Deviation Temperature Coefficient Output Short Circuit Conditions Dual Output, Balanced Load For Vin = Min to Max Iout = 20% to 100% Units % % % % mV P - P mV P - P mV rms % S % %/C
115 25% Load Step Change
140 250 2 0.01
Continuous Conditions 60 Seconds 1,000 VDC 100 kHz, 1V Min. 1,500 1,000 200 Conditions Typ. Max. Units VDC M pF kHz Units
General
Parameter Isolation Voltage Isolation Resistance Isolation Capacitance Switching Frequency
650 260
750 350 Max. +60 +90 +125 95
Environmental
RoHS Compliant
MicroPower Direct
292 Page Street Suite D Stoughton, MA 02072 USA T: (781) 344-8226 F: (781) 344-8481 E: sales@micropowerdirect.com W: www.micropowerdirect.com
Parameter Operating Temperature Range Operating Temperature Range Storage Temperature Range Cooling Humidity
Min. Typ. -40 +25 -40 -40 Free Air Convection RH, Non-condensing Ambient Case
C C C
%
Physical
Case Size Case Material Weight 1.31 x 0.81 x 0.40 Inches (33.4 x 20.6 x 10.2 mm) Non-Conductive Black Plastic (UL94-V0) 0.49 Oz (14g) Conditions MIL HDBK 217F, 25C, Gnd Benign Conditions 12 VDC Input 24 VDC Input 48 VDC Input 1.5 mm From Case For 10 Sec. All Models Min. 1.0 Min. -0.7 -0.7 -0.7 Typ. Max. Units MHours Units VDC C mW
Reliability Specifications
Parameter MTBF
Absolute Maximum Ratings
Parameter Input Voltage Surge (1 Sec) Lead Temperature Internal Power Dissipation Typ. Max. 25.0 50.0 100.0 260 2,500
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
Model Selection Guide
Model Number LF701RW LF702RW LF703RW LF704RW LF705RW LF706RW LF707RW LF711RW LF712RW LF713RW LF714RW LF715RW LF716RW LF717RW LF721RW LF722RW LF723RW LF724RW LF725RW LF726RW LF727RW Input Voltage (VDC) Current (mA) Nominal Range Full-Load No-Load 12 9.0 - 18.0 417 25 12 9.0 - 18.0 595 25 12 9.0 - 18.0 718 25 12 9.0 - 18.0 710 25 12 9.0 - 18.0 496 25 12 9.0 - 18.0 717 25 12 9.0 - 18.0 710 25 24 18.0 - 36.0 206 10 24 18.0 - 36.0 294 10 24 18.0 - 36.0 355 10 24 18.0 - 36.0 355 10 24 18.0 - 36.0 245 10 24 18.0 - 36.0 355 10 24 18.0 - 36.0 351 10 48 36.0 - 75.0 103 8 48 36.0 - 75.0 147 8 48 36.0 - 75.0 178 8 48 36.0 - 75.0 178 8 48 36.0 - 75.0 123 8 48 36.0 - 75.0 178 8 48 36.0 - 75.0 178 8 Voltage (VDC) 3.3 5.0 12.0 15.0 5.0 12.0 15.0 3.3 5.0 12.0 15.0 5.0 12.0 15.0 3.3 5.0 12.0 15.0 5.0 12.0 15.0 Output Current (mA, Max) 1,200 1,200 625 500 500 312 250 1,200 1,200 625 500 500 312 250 1,200 1,200 625 500 500 312 250 Current (mA, Min) 90.0 60.0 32.0 25.0 25.0 15.5 12.5 90.0 60.0 32.0 25.0 25.0 15.5 12.5 90.0 60.0 32.0 25.0 25.0 15.5 12.5 Efficiency (%, Typ) 79 84 87 88 84 87 88 80 85 88 88 85 88 89 80 85 88 88 85 88 88 Fuse Rating Slow-Blow (mA) 1,500 1,500 1,500 1,500 1,500 1,500 1,500 700 700 700 700 700 700 700 350 350 350 350 350 350 350
Notes: 1. When measuring output ripple, it is recommended that an external 0.47 F ceramic capacitor be placed from the +Vout pin to the -Vout pin for single output units and from each output to common for dual output units. For noise sensitive applications, the use of 3.3 F capacitors will reduce the output ripple. 2. Transient recovery is measured to within a 1% error band for a load step change of 75% to 100%. 3. Operation at no-load will not damage these units. However, they may not meet all specifications. 4. Dual output units may be connected to provide a 10 VDC, 24 VDC or 30 VDC output. To do this, connect the load across the positive (+Vout) and negative (-Vout) outputs and float the output common. 5. The converter should be connected to a low ac-impedance source. An input source with a highly inductive impedance may affect the stability of the converter. In applications where the converter output loading is high and input power is supplied over long lines, it may be necessary to use a capacitor on the input to insure start-up. In this case, it is recommended that a low ESR (ESR <1.0 at 100 kHz) capacitor be mounted close to the converter. For 12V input units a 4.7 F is recommended, and for 24V & 48V units a 2.2 F. 6. It is recommended that a fuse be used on the input of a power supply for protection. See the table above for the correct rating.
Derating Curve
Capacitive Load
3.3 VDC Output (Max) 680 F 5 VDC Output (Max) 1,500 F 12 ,15 VDC Output (Max) 100 F 5 VDC Output (Max) 680 F 12, 15 VDC Output (Max) 100 F
Mechanical Dimensions
Board Layout
Pin Connections
Pin 2,3,24 9 10 11,12 13 14,15 16 1,22,23 Single Dual -Vin -Vin NC NC NC Common -Vout -Vout +Vout -Vout +Vout +Vout -Vout Common +Vin +Vin
NC: No Connection Notes: * All dimensions are typical in inches (mm) * Tolerance x.xx = 0.01 (0.25) * Pin 1 is marked by a "dot" or indentation on the unit
MicroPower Direct
www.micropowerdirect.com
292 Page Street Ste D Stoughton, MA 02072
*
TEL: (781) 344-8226
*
FAX: (781) 344-8481
*
E-Mail: sales@micropowerdirect.com

▲Up To Search▲

Price & Availability of LF722RW

	To Download LF722RW Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .