Absolute maximum rating

Operating conditions

Input Voltage: 475V

Output Power: 440W，165W，330W

Storage temperature: -65～135℃

Lead welding temperature（10s）： 300℃

Junction Temperature:＜150℃

Input voltage:155～425V

Working temperature（Tc）：-55～100℃

No.

Character

Symbol

Conditions

（ Unless otherwisespecified ，-55℃≤Tc≤125℃，VIN=270V±10V）

Limit value

Unit

min

max

1

Input under-voltage/V

turn-on voltage

VINL-ONT

VINL-OFF

TA=25℃

146

154

V

Turn-off voltage

TA=25℃

135

145

V

2

Output Voltage

Vo

Full-load

TA=25℃

4.95

5.05

V

Tc=-55℃

TC=100℃

4.925

5.075

3

Output Current

Io

Vin=155V～425V

-

80

A

4

Voltage regulation

Sv

155V  425V，Full-load

TA=25℃、 Tc=-55℃和 TC=100℃

-

±0.30

%

5

Load regulation

S1

No-load Full-load

TA=25℃、 Tc=-55℃和 TC=100℃

-

±0.30

%

6

Output voltage regulation range a

VTR

TA=25℃，50% load

-20

10

%

7

Output ripple voltage

VPP

BW≤20MHz， full-load, peak-peak

TA=25℃、 Tc=-55℃ TC=100℃

-

400

mV

8

Output over-voltage protection point

VOVP

TA=25℃，design guarantee

5.6

6.9

V

9

Output current for over-current protection

Iimax

TA=25℃

88

112

A

10

Capacitive Load

Co

TA=25℃，Full-load

-

10000

μF

11

efficiency

η

Vin=270V， Full-load， TA=25℃

88

-

%

a test only be needed when identified inspection or parameters are effected by changing process; b  design guarantee, do not require test

characteristics

Conditions

（ Unless otherwisespecified ，-55℃≤Tc≤125℃，VIN=270V±10V）

criteria

Using function

ON/OFF voltage is over 2.4V, TA=25℃,

No output

ON/OFF voltage is lower than 0.7V or hung in the air, TA=25℃

Normal Output

No.

characteristics

Symbol

conditions

（ Unless otherwisespecified ，-55℃≤Tc≤125℃，VIN=270V±10V）

Limit value

Unit

min

max

1

Input under-voltage/V

turn-on voltage

VINL-ONT

VINL-OFF

TA=25℃

145

155

V

Turn-off voltage

TA=25℃

133

147

V

2

Output voltage

Vo

Full-Load

TA=25℃

14.85

15.15

V

Tc=-55℃

TC=100℃

14.775

15.225

3

Output current

Io

Vin=155V～425V

-

10

A

4

Voltage regulation

Sv

155V  425V，Full-load

TA=25℃、 Tc=-55℃和 TC=100℃

-

±0.30

%

5

Load regulation

S1

No-load Full-load

TA=25℃、 Tc=-55℃和 TC=100℃

-

±0.30

%

6

Output voltage regulation range a

VTR

TA=25℃，50% load

-20

10

%

7

Output ripple voltage

VPP

BW≤20MHz， full-load, peak-peak

TA=25℃、 Tc=-55℃和 TC=100℃

-

120

mV

8

Output over-voltage b

protection point

VOVP

TA=25℃，design guarantee

115

137

V

9

Output current for over-current protection

Iimax

TA=25℃

11

14

A

10

Capacitive Load

Co

TA=25℃，Full-load

-

2000

μF

11

efficiency

η

Vin=270V， Full-load ， TA=25℃

85

-

%

a test only be needed when identified inspection or parameters are effected by changing proces;b  design guarantee, do not require test

characteristics

Conditions

（ Unless otherwisespecified ，-55℃≤Tc≤125℃，VIN=270V±10V）

criteria

Using function

ON/OFF voltage is over 2.4V, TA=25℃

No output

ON/OFF voltage is lower than 0.7V or hung in the air, TA=25℃

Output voltage is Normal

No.

Character

Symbol

（ Unless otherwisespecified ，-55℃≤Tc≤125℃，VIN=270V±10V）

Limit value

Unit

min

max

1

Input under-voltage/V

turn-on voltage

VINL-ONT

VINL-OFF

TA=25℃

145

155

V

Turn-off voltage

TA=25℃

133

147

V

2

Output Voltage

Vo

Full-load

TA=25℃

47.52

48.48

V

Tc=-55℃

TC=100℃

47.280

48.720

3

Output Current

Io

Vin=155V～425V

-

6.3

A

4

Voltage regulation

Sv

155V  425V，Full-load

TA=25℃、 Tc=-55℃TC=100℃

-

±0.30

%

5

Load regulation

S1

No-load Full-load

TA=25℃、 Tc=-55℃TC=100℃

-

±0.30

%

6

Output Voltage trimming range

VTR

TA=25℃，50% Load

-20

10

%

7

Output ripple voltage

VPP

BW≤20MHz， full-load, peak-peak

TA=25℃、 Tc=-55℃ TC=100℃

-

700

mV

8

Output over-voltage protection point

VOVP

TA=25℃，design guarantee

55.8

64.2

V

9

Output current for over-current protection

Iimax

TA=25℃

6.9

9.2

A

10

Capacitive Load

Co

TA=25℃，Full-load

-

1000

μF

11

Efficiency

η

Vin=270V，Full-load， TA=25℃

89

-

%

a test only be needed when identified inspection or parameters are effected by changing processb  design guarantee, do not require test

characteristics

conditions

（ Unless otherwisespecified ，-55℃≤Tc≤125℃，VIN=270V±10V）

criteria

Using function

ON/OFF voltage is over 2.4V, TA=25℃

No output

ON/OFF voltage is lower than 0.7V or hung in the air, TA=25℃

Output voltage is Normal

Pin

Symbol

Designation

1

SyncIn

Synchronizing signal Input

2

SyncOut

Synchronizing signal Output

3

ON/OFF（+）

Positive Enabling(relative to ON/OFF(-))

4

ON/OFF(-)

Negative Enabling（isolation common）

5

Vin（+）

Positive Input

6

Vin（-）

Negative Input

7

Vaux

Auxiliary power output（relative to output common）

8

Start Sync

Synchronizing signal start

9

I Share

Paralleled current sharing Signal

10

TRIM

Output voltage regulation

11

SENSE(+)

Positive Output Induction

12

SENSE(-)

Negative Output Induction

13

Vout（-）

Negative Output

14

Vout（-）

Negative Output

15

Vout（-）

Negative Output

16

Vout（+）

Positive Output

17

Vout（+）

Positive Output

18

Vout（+）

Positive Output

Pin

Symbol

Designation

1

Vin+

Positive Input

2

ON/OFF

Positive Enabling

A

ClockSync

Synchronizing signal

B

StartSync

Synchronizing start

C

Ishare

Paralleled current sharing Signal

3

Vin-

Negative Input

4

Vo-

Negative Output

5

S-

Negative Output Induction

6

Trim

Output voltage regulation

7

S+

Positive Output Induction

8

Vo+

Positive Output