Product # PQ55530HEB08

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2HEB53P Rev. B

10/4/07

Page 4

T

pecification

Input:

Input:

Output:

Output:

Current:

Current:

ackage:

38-55 V

38-55 V

53 V

53 V

7.6 A

7.6 A

Half-brick

Half-brick

Parameter

Min.

Typ.

Max.

Units

Notes & Conditions

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Non-Operating

80

V

Continuous

Operating

60

V

Continuous

Operating Transient Protection

80

V

100ms 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

38

48

55

V

Input Under-Voltage Lockout

Turn-On Voltage Threshold

34.0

35.2

36.4

V

Turn-Off Voltage Threshold

32.0

33.0

34.3

V

Lockout Voltage Hysteresis

2.1

V

Maximum Input Current

11.8

A

100% Load, 38 Vin, trim up 5%

No-Load Input Current

140

mA

Disabled Input Current

42

68

mA

Vin = 38V

Inrush Current Transient Rating

0.01

Input Reflected Ripple Current

20

40

mA

RMS thru 4.7µH inductor; Figures 16 & 18

Input Terminal Ripple Current

130

mA

RMS; Figures 12 & 17

Recommended Input Fuse

20

A

Fast blow external fuse recommended

Input Filter Component Values (L\C)

1.0\5.0

µH\µF

Internal values; see Figure D

Recommended External Input Capacitance

100

µF

16

OUTPUT CHARACTERISTICS

Output Voltage Set Point (standard option)

52.50

53.00

53.50

V

52.75

53.00

53.25

V

Output Voltage Regulation

Over Line

+0.05 \ 20 +0.1 \ 50

%\mV

Over Load

+0.15 \ 80 +0.2 \ 105 %\mV

Over Temperature (standard option)

+100

+158

mV

+50

+79

mV

Total Output Voltage Range

51.95

53.95

V

Over sample, line, load, temperature & life

20MHz bandwidth; Figures 15 & 16

Peak-to-Peak

150

mV

Full Load; see Figures 16 & 19

RMS

20

50

mV

Full Load; see Figures 16 & 19

Operating Output Current Range

0

7.6

A

Subject to thermal derating; Figures 5, 7 - 10

Output DC Current-Limit Inception

9.5

10.5

11.5

A

Output Voltage 10% Low; Figure 20

Back-Drive Current Limit while Enabled

0.5

1.38

2.0

A

54V pre-bias voltage on output

Back-Drive Current Limit while Disabled

50

90

120

mA

"

Maximum Output Capacitance

1,000

µF

53Vout at 7.6A Resistive Load

DYNAMIC CHARACTERISTICS

Input Voltage Ripple Rejection

60

dB

120 Hz; Figure 20

Output Voltage during Load Current Transient

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

600

mV

50-75-50% Iout max; 200µF cap; Figure 13

For a Step Change in Output Current (1A/µs)

600

mV

50-75-50% Iout max; 200µF cap; Figure 14

Settling Time

600

µs

To within 0.2% Vout nom

Turn-On Transient

Turn-On Time

15

20

28

ms

Full load, Vout=90% nom.; Figures 11 & 12

Start-Up Delay Time

4

6

8

ms

-40°C to +125°C; Figure E

Output Voltage Overshoot

0

%

1,000 µF load capacitance, Iout = 0A

EFFICIENCY

100% Load

95

%

Figures 1 - 4

50% Load

95

%

Figures 1 - 4

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, 7 - 10 for derating curves

Maximum Baseplate Temperature

100

°C

Applies to PQ55525HEB08xxx unit only

ISOLATION CHARACTERISTICS

Isolation Voltage (dielectric strength)

2250

V

Isolation Resistance

30

220

pF

PQ55530HEx08 ELECTRICAL CHARACTERISTICS

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

Note 3: See the last page for ordering information options.