Product # PQ40120QGx08

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2QG128D Rev. C

11/13/12

Page 4

Input:

Output:

Current:

Package:

18-75V

12V

8.33A

Quarter-brick

PQ40120QGx08 Electrical Characteristics

Ta = 25 °C, airflow rate = 300 LFM, Vin = 48V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature

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

Parameter

Min.

Typ.

Max.

Units Notes & Conditions

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Non-Operating

-1

100

V

Continuous

Operating

80

V

Continuous

Operating Transient Protection

100

V

100ms transient, square wave

Isolation Voltage

Input to Output

2000

V

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

9.3

A

100% Load, 18V 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

250

mV

1000V/ms input transient

Input Reflected Ripple Current

5

mA

RMS thru 10μH inductor

Input Terminal Ripple Current

145

mA

RMS

Recommended Input Fuse

20.0

A

Fast acting external fuse recommended

Input Filter Component Values (L\C)

1.5\6.6

µH/µF Internal values

Recommended External Input Capacitance

47

µF

OUTPUT CHARACTERISTICS

Output Voltage Set Point

11.82

12.00

12.18

V

Output Voltage Regulation

Over Line

+0.05 \ 5 +0.2 \ 24 %/mV

Over Load

+0.05 \ 5 +0.2 \ 24 %/mV

Over Temperature

±90

±240

%/mV At full load: drift at zero load is minimal

Total Output Voltage Range

11.58

12.42

V

Over sample, line, load, temperature & life

Output Voltage Ripple and Noise

20MHz bandwidth, see note 1

Peak-to-Peak

25

150

mV

Full load

RMS

15

30

mV

Full load

Operating Output Current Range

0

8.33

A

Subject to thermal derating

Output DC Current-Limit Inception

9.0

9.6

11.0

A

Output Voltage 10% Low

Output DC Current-Limit Shutdown Voltage

7.2

V

Current Share Accuracy (2 units paralleled)

2

5

%

% of rated output current

Back-Drive Current Limit while Enabled

0.1

0.3

0.8

A

Negative current drawn from output source

Back-Drive Current Limit while Disabled

0

10

50

mA

Negative current drawn from output source

Maximum Output Capacitance

2,000

μF

12Vout at 8.3A Resistive Load

EFFICIENCY

100% Load - (24Vin)

90

%

Figures 1 - 4, 24Vin

50% Load - (24Vin)

91

%

Figures 1 - 4, 24Vin

100% Load - (48Vin)

89

%

Figures 1 - 4, 48Vin

50% Load - (48Vin)

90

%

Figures 1 - 4, 48Vin

Technical Specifications

Electrical Characteristics