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SPECIFICATIONS

All Specifications Typical At Nominal Line, Full Load, and 25℃ Unless Otherwise Noted

INPUT SPECIFICATIONS:

Input Voltage Range....………….......….........300V................. 200-425V Input over voltage protection……………………Module on…………..480V Module off………….500V Under voltage lockout …………..…300Vin power up .…..……..…. 195V

300Vin power down.….….….180V Positive Logic Remote ON/OFF(5&6)

Input Filter ………………………………………………..…...……... C Type

OUTPUT SPECIFICATIONS:

Voltage Accuracy : ........................................………….......... ±1.5% max.

Transient Response:25% Step Load Change .………………<500u sec. E x t e r n a l T r i m A d j . R a n g e ( 4 ) … … … … … … … … . … … .

. . . . . . . . . . . . . . . . . . 6 0 - 1 1 0 % Load share Accuracy.……………….……±10% at 50% to 100%Full Load Auxiliary output voltage/current……………………10±3Vdc/20mA max. Ripple & Noise, 20MHz BW (3)

12V&15V……………150mV RMS max., 300mV pk-pk max.

24V&28V……………300mV RMS max., 600mV pk-pk max. 48V……………350mV RMS max., 750mV pk-pk max.

Temperature Coefficient……..................………..............…..... ±0.03%/°C Short Circuit Protection……………………………………………Continuous Line Regulation(1) .............………………….………..................…. ±0.2% Load Regulation(2) .................………………………….........…...... ±0.5% Over Voltage Protection trip Range ,% Vo nom…………………115-140% Current Limit…………………………………105% ~125% Nominal Output

GENRAL SPECIFICATIONS:

Efficiency.................…..................................……..........….......See Table

Isolation Voltage .....................Input/Output....………..….. 3000VAC min.

Input/Case.……….………..2500VAC min.

Output/Case……………… 500VDC min.

Isolation Resistance .............................…............…….... 10^7 ohm min. Switching Frequency ...................…………………………... 200KHz, Typ.

MTBF…………… MIL-STD-217F, GB .……………………………T.B.D. hrs

Dimensions ...................... 4.60′2.40x0.50 inches(116.8x61.0′12.7 mm) Case Material ................…....……Aluminum Baseplate with Plastic Case Weight …………………………………………………………….. 230g Typ

NOTE :

1. Measured from high line to low line

2. Measured from full load to zero load.

3. Output ripple and noise measured with 1uF ceramic capacitor and

1000uF aluminum capacitor across output.

4. The output adjustment circuit and trim equations show as figure1 and Figure2.

5. Logic compatibility……………open collector refer to -Vin Module on……………………>3.5Vdc to 75Vdc or Open Circuit Module off……………………<1.2Vdc

6. Suffix “N” to the model number with negative logic remote on/off Module on……………………<1.2Vdc

Module off……………………>3.5Vdc to 75Vdc or Open Circuit

CASE FB

CASE FB

CFB750 Output Voltage Adjustment Range

CFB750-300SXX Derating

The output voltage can be determined by below equations:

Vout = (Vo + VR) ′ Vf

Unit: KΩ

Vo: Nominal Output Voltage

Fig.1 The schematic of output voltage adjusted by using external resistor and/or variable resistor.

Output Voltage = TRIM

Terminal Voltage * Nominal

Output Voltage

Fig.2 The schematic of output voltage adjusted by using external DC voltage.