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LES25B48-1V2REJ Dataheets PDF



Part Number LES25B48-1V2REJ
Manufacturers Emerson
Logo Emerson
Description DC-DC / Industry Standard Isolated Eighth Brick
Datasheet LES25B48-1V2REJ DatasheetLES25B48-1V2REJ Datasheet (PDF)

Embedded Power for Business-Critical Continuity Eighth-Brick  B Series Total Power: Up to 80 Watts Input Voltage: 36-75 Vdc No. of Outputs: Single Rev. 11.25.08_138 Eighth-Brick B Series 1 of 4 Special Features • High efficiency topology • Industry standard eighth-brick foot print (identical to quarter-brick pinout) • Low profile through-hole and surface mount version • 38% space savings over quarter- brick converters • Wide ambient temperature range, -40 ºC to +85 ºC • 90% .

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Embedded Power for Business-Critical Continuity Eighth-Brick  B Series Total Power: Up to 80 Watts Input Voltage: 36-75 Vdc No. of Outputs: Single Rev. 11.25.08_138 Eighth-Brick B Series 1 of 4 Special Features • High efficiency topology • Industry standard eighth-brick foot print (identical to quarter-brick pinout) • Low profile through-hole and surface mount version • 38% space savings over quarter- brick converters • Wide ambient temperature range, -40 ºC to +85 ºC • 90% to 110% output trim • 100 V, 100 ms input voltage transient rated • Meets basic insulation requirements of EN60950-1 • Industry standard feature sets: UVLO, OVP, OCP, OTP, O/P trim, remote sense • Regulation to zero load • Fixed frequency switching • Fast transient switching • EU directive 2002/95/EC compliant for RoHS Electrical Specifications* Output Voltage adjustability: Minimum load: Overshoot: Undershoot: Transient Response: (See Note 1) Input Input voltage range: Input current: Active high remote ON/OFF Logic compatibility: ON OFF Undervoltage Lockout: Start-up time: (See Note 2) 48 V nominal No load Remote OFF Power up Power up Power up Remote ON/OFF 36-75 Vdc 100 mA 10 mA TTL compatible ref to -input >2.4 Vdc <0.8 Vdc 35.5 V (typ.) 35.5 V (typ.) 25 ms (typ.) 5 ms (typ.) At turn-on and turn-off At turn-on and turn-off 90% to 110% 0A None None 5% Vout typ. deviation 40 µs recovery *All specifications are typical at nominal input, full load at 25 °C ambient unless otherwise stated. Safety • UL/cUL60950-1 CAN/CSA 22.2 • TUV EN/IEC60950-1 Embedded Power for Business-Critical Continuity Electrical Specifications General Basic insulation: Switching frequency: Approvals and standards: Material flammability: Weight: MTBF: EMC Characteristics Immunity: ESD air enclosure: Radiated field enclosure: Conducted: Input transients: Thermal performance: Protection Short-circuit: Overvoltage: 115% with automatic recovery 125% Vo (typ) with automatic recovery 125 °C hot spot temperature with automatic recovery EN1000-4-2 8 kV/6 kV EN1000-4-3 10 V/m EN1000-4-6 10 V 100 V, 100 ms Operating ambient temperature Non-operating (O/P within spec.) (O/P within spec.) (O/P within spec.) Input/output Fixed Telcordia SR-332 Issue 1, 50% stress, 40 °C ambient 2250 V dc 500 kHz EN60950-1 VDE UL/cUL60950-1 UL94V-0 20 g (0.70 oz) 4.2 M hours Notes Rev. 11.25.08_138 Eighth-Brick B Series 2 of 4 1 di/dt = 1 A/µs, Vin = 48 Vdc, Tc = 25 °C, load change = 50% to 75% lo max. and 75% to 50% lo max. Deviation varies by model. For further details see Technical Reference Notes (TRN). 2 Start-up into resistive load. 3 This product is only for inclusion by professional installers within other equipment and must not be operated as a stand alone product. 4 Recommended input fusing is up to 10 A HRC 200 V rated fuse. 5 Warranty: 2 years. 6 through-hole version intended for wave soldering process. 7 The ‘J’ suffix indicates that these parts are Pb-free (RoHS 6/6) compliant. Environmental Characteristics -40 °C to +85 °C -40 °C to +125 °C Thermal: Ordering Information Regulation Output Voltage 12.0 V 5.0 V 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V 1.0 V Output Current (Max) 6.7 13 20 22 25 25 25 25 Efficiency (Typ) 92% 92% 91% 90% 89% 88% 86% 85% Set Point Accuracy (Typ) ±1% ±1% ±1% ±1% ±1% ±1% ±1% ±1% Line Load Ripple & Noise Model Number(7) (Typ) 70 mVp-p 30 mVp-p 30 mVp-p 30 mVp-p 30 mVp-p 25 mVp-p 25 mVp-p 20 mVp-p LES06B48-12V0REJ LES13B48-5V0REJ LES20B48-3V3REJ LES22B48-2V5REJ LES25B48-1V8REJ LES25B48-1V5REJ LES25B48-1V2REJ LES25B48-1V0REJ ±0.1% ±0.1% ±0.1% ±0.1% ±0.1% ±0.1% ±0.1% ±0.1% ±0.2% ±0.2% ±0.2% ±0.2% ±0.2% ±0.2% ±0.2% ±0.2% Part Number System with Options Product Family LES L = Low Profile E = 1/8 Brick S = Single Output Rated Output Current 22 22 = 22 Amps, 20 = 20 Amps, etc. Vintage B A = 1st generation B = 2nd generation Nominal Rated Input Voltage 48 Type of Output 2V5 Remote ON/OFF LOGIC R Blank = Positive R = Negative Body Height, Package Type and Pin Length E A = 0.33 in (8.1 mm),Through Hole 0.19 in (4.8 mm), Pins E = 0.37 in (9.1 mm), Through Hole 0.19 in (4.8 mm), Pins S = 0.33 in (8.1 mm), Surface Mount RoHS Compliance (7) J J = Pb free (RoHS 6/6 compliant) 48 = 48 Volts 2V5 = 2.5 Volts (36 - 75 VDC range) 3V3 = 3.3 Volts Embedded Power for Business-Critical Continuity CAL DETAILS AND DIMENSION OPTIONS FOR PTH PIN (LES B SERIES) Through-hole Mechanical Drawing (for 1.8, 1.5, 1.2 and 1.0 V) 2.30 [58.4] Rev. 11.25.08_138 Eighth-Brick B Series 3 of 4 1 2 0.30 [7.62] 8 7 6 5 4 2.00 [50.80] 0.90 [22.9] 0.15 [3.8] 3 Clearance Height (see table) (see table) 0.19 [4.8] 0.040 ± 0.004 [1.02 ± 0.10] (6 pls) 2.30 [58.4] 0.062 ± 0.004 [1.57 ± 0.10] (2 pls) 0.080 ± 0.004 [ 2.03 ± 0.10] (2 pls) 0.90 [22.9] 0.30 [7.62] 0.15 [3.81] Suffix Height ±0.025 [0.64] Clearance Minimum 0.004 (0.10) 0.047 .


LES25B48-1V2EJ LES25B48-1V2REJ LES25B48-1V2RSJ


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