INPUT

Item

Conditions

Min

Typ

Max

Unit

Input Voltage Range

48Vin(Nominal)

9

48

75

VDC

Input Surge Voltage

(100ms max.)

100

VDC

Start-up Threshold Voltage

8.2

8.5

8.7

VDC

Under Voltage Lockout(UVLO)

7

7.5

8

VDC

Input Current

See model selection table

Input filter

Pi network filter

OUTPUT

Item

Conditions

Min

Typ

Max

Unit

Output Voltage

See Table

Line Regulation

Low line to high line at full load

-1

+1

%Vo

Load Regulation

Vin=48V, 25-100% of lo

-1

+1

%Vo

Output Voltage Setting Accuracy

Vin=48V, max lo

-1

+1

%Vo

Output Voltage Trim

-10

+10

%Vo

Ripple & Noise ^{(Note 1)}

Vin=48V, max lo.

Measured by 20MHz bandwidth with 1Uf ceramic cap. and 10uF tantalum cap.

(or ceramic cap.) Connected to the output pins.

3.3VDC output

30

mV

5VDC output

50

12VDC output

120

15VDC output

150

24VDC output

240

48VDC output

480

54VDC output

540

Output Power

See model selection table

Output Current

See model selection table

Minimum Load

No minimum load required

Transient Recovery Time

50% - 75% of lo, di/dt=0.1A/us

300

500

us

Transient Recovery

Deviation

±3

±5

%Vo

NOTE 1: For 48V and 54V output models, add 1uF ceramic cap. and 10uF MLCC(ESR≦2mΩ @200kHz) .

PROTECTION

Item

Conditions

Min

Typ

Max

Unit

Output Over Voltage Protection

Zener diode clamp

See model selection table

Over Current Protection

% of Io rated; Hiccup mode

130

180

%Io

Thermal Protection

110

°C

Short Circuit Protection

Short +Vo to VO

Auto recovery

GENERAL

Item

Conditions

Min

Typ

Max

Unit

Efficiency

See model selection table

Switching Frequency

220

KHz

Isolation Voltage

Input to Output, 60 Sec

3000

VDC

Isolation Resistance

500VDC

100

M Ohm

Isolation Capacitance

1

nF

Maximum Capacitive Load

See model selection table