Input:

Input:

Output:

Output:

Current:

Current:

ackage:

18-75 V

18-75 V

8.0 V

8.0 V

9 A

9 A

Quarter-brick

Quarter-brick

T

pecification

Product # PQ40080QGA09

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2QG380D Rev. A

02/07/06

Page 3

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

100ms transient, square wave

Isolation Voltage (input to output)

2000

V

Basic insulation, 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

18

48

75

V

Input Under-Voltage Lockout

Turn-On Voltage Threshold

16.0

16.5

17.0

V

Turn-Off Voltage Threshold

14.5

15.0

15.5

V

Lockout Voltage Hysteresis

1.0

1.5

2.0

V

Maximum Input Current

4.75

A

100% Load, 18 Vin

No-Load Input Current

80

160

mA

Disabled Input Current

2.0

4

mA

Inrush Current Transient Rating

0.03

Response to Input Transient

225

mV

1000V/ms input transient, 48V-75V step

Input Reflected Ripple Current

5

mA

P-P thru 10µH inductor; Figures 17 &19

Input Terminal Ripple Current

145

mA

RMS; Figures 17 &18

Recommended Input Fuse

20.0

A

Fast blow external fuse recommended

Input Filter Component Values (L\C)

2.0 \ 4.4

µH\µF

Internal values; Figure E

Recommended External Input Capacitance

47

µF

OUTPUT CHARACTERISTICS

Output Voltage Set Point

7.920

8.000

8.080

V

Output Voltage Regulation

Over Line

+0.05 \ 4 +0.2 \ 15

%\mV

Over Load

+0.05 \ 4 +0.2 \ 15

%\mV

Over Temperature

+35

+100

mV

Total Output Voltage Range

7.79

8.21

V

Over sample, line, load, temperature & life

20MHz bandwidth; Figures 17 & 20

Peak-to-Peak

25

75

mV

Full Load; Figures 17 & 20

RMS

5

20

mV

Full Load; Figures 17 & 20

Operating Output Current Range

0

9

A

Subject to thermal derating; Figures 5 - 12

Output DC Current-Limit Inception

9.3

11.0

13.0

A

Output Voltage 10% Low; Figure 21

Output DC Current-Limit Shutdown Voltage

5.5

V

Back-Drive Current Limit while Enabled

0.2

0.7

1.25

A

Negative current drawn from output

Back-Drive Current Limit while Disabled

0

10

50

mA

Negative current drawn from output

Maximum Output Capacitance

1700

µF

8.0Vout at 9A Resistive Load

DYNAMIC CHARACTERISTICS

Input Voltage Ripple Rejection

55

dB

120 Hz; Figure 24

Output Voltage During Load Current Transient

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

300

mV

50% to 75% to 50% Iout max; Figure 15

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

200

mV

50% to 75% to 50% Iout max; Figure 16

Settling Time

300

µs

To within 1% Vout nom

Turn-On Transient

Turn-On Time

8

12

ms

Full load, Vout=90% nom.; Figures 13 & 14

Start-Up Inhibit Time

180

200

240

ms

-40°C to +125°C; Figure F

Output Voltage Overshoot

0

%

EFFICIENCY

100% Load (24Vin)

90.0

%

Figures 1 - 4, 24Vin

50% Load (24Vin)

91.5

%

Figures 1 - 4, 24Vin

100% Load (48Vin)

89.5

%

Figures 1 - 4, 48Vin

50% Load (48Vin)

90.5

%

Figures 1 - 4, 48Vin

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 - 12 for derating curves

ISOLATION CHARACTERISTICS

Isolation Voltage (dielectric strength)

2000

V

Isolation Resistance

30

M

Ω

470

pF

PQ40080QGA09 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: Higher values of isolation capacitance can be added external to the module.