Product # PQ60280HEA13

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2HE628P Rev. C

7/3/07

Page 4

T

pecification

Input:

Input:

Output:

Output:

Current:

Current:

ackage:

35-75 V

35-75 V

28 V

28 V

12.8 A

12.8 A

Half-brick

Half-brick

Parameter

Min.

Typ.

Max.

Units

Notes & Conditions

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Non-Operating

100

V

Continuous

Operating

80

V

Continuous

Operating Transient Protection

100

V

100µs transient

Isolation Voltage (input to output)

2250

V

Basic insulation level, Pollution degree 2

Operating Temperature

-40

100

°C

Storage Temperature

-55

125

°C

Voltage at ON/OFF input pin

-2

18

V

INPUT CHARACTERISTICS

Operating Input Voltage Range

35

48

75

V

Input Under-Voltage Lockout

Turn-On Voltage Threshold

32.3

33.6

34.6

V

Turn-Off Voltage Threshold

29.6

30.6

31.8

V

Lockout Voltage Hysteresis

3.0

V

Maximum Input Current

11.0

A

100% Load, 35 Vin

No-Load Input Current

180

250

mA

Disabled Input Current

39

60

mA

Inrush Current Transient Rating

0.05

Input Reflected Ripple Current

40

mA

RMS thru 4.7µH inductor; Figures 13 & 15

Input Terminal Ripple Current

120

mA

RMS; Figures 13 & 14

Recommended Input Fuse

20

A

Fast blow external fuse recommended

Input Filter Component Values (L\C)

1.0 \ 5.0

µH\µF

Internal values; Figure E

Recommended External Input Capacitance

100

µF

13

Recommended External Input Capacitor ESR1

0.04

0.20

1.00

W

100kHz, -40ºC to 100ºC

OUTPUT CHARACTERISTICS

Output Voltage Set Point

27.75

28.00

28.25

V

Output Voltage Regulation

Over Line

+0.05 \ 28 +0.10 \ 28 %\mV

Over Load

+0.1 \ 28 +0.2 \ 56

%\mV

Over Temperature

+45

+90

mV

Total Output Voltage Range

27.50

28.50

V

Over sample, line, load, temperature & life

20MHz bandwidth; Figures 13 & 16

Peak-to-Peak

150

200

mV

Full Load; Figures 13 & 16

RMS

30

50

mV

Full Load; Figures 13 & 16

Operating Output Current Range

0.0

12.8

A

Subject to thermal derating; Figures 5 - 8

Output DC Current-Limit Inception

14.7

15.8

17.0

A

Output Voltage 10% Low; Figure 25

Back-Drive Current-Limit While Enabled

0.5

1.0

2.0

A

Negative current drawn from output

Back-Drive Current-Limit While Disabled

0.14

0.20

0.30

A

Negative current drawn from output

Maximum Output Capacitance

4,000

µF

28Vout at 12.8A Resistive Load

DYNAMIC CHARACTERISTICS

Input Voltage Ripple Rejection

30

dB

120 Hz; Figure 20

Output Voltage during Load Current Transient

For a Step Change in Output Current (0.1A/µs)

500

mV

50-75-50% Iout max; 330µF cap; Figure 11

For a Step Change in Output Current (5A/µs)

500

mV

50-75-50% Iout max; 330µF cap; Figure 12

Settling Time

200

µs

To within 1% Vout nom

Turn-On Transient

Turn-On Time

10

19

26

ms

Full load, Vout=90% nom.; Figures 9 & 10

Start-Up Inhibit Time

2

4

6

ms

-40°C to +125°C; Figure A

Output Voltage Overshoot

0

%

4,000 µF load capacitance, Iout = 12.8A resistive load

EFFICIENCY

100% Load

94.5

%

Figures 1 - 4 (Figure 23 for baseplated)

50% Load

94.0

%

Figures 1 - 4 (Figure 23 for baseplated)

TEMPERATURE LIMITS FOR POWER DERATING CURVES

Semiconductor Junction Temperature

125

°C

Package rated to 150°C

Board Temperature

125

°C

UL rated max operating temp 130°C

Transformer Temperature

125

°C

See Figures 5 - 8 for derating curves

100

°C

Applies to baseplated units only

ISOLATION CHARACTERISTICS

Isolation Voltage (dielectric strength)

2250

V

Isolation Resistance

30

220

pF

PQ60280HEA13 ELECTRICAL CHARACTERISTICS

perature with appropriate power derating. Specifications subject to change without notice.

Note 1: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com)

Note 2: There is no derating with a baseplate temperature of 100ºC or lower.

Note 3: Higher values of isolation capacitance can be added external to the module.