Input:

Input:

Output:

Output:

Current:

Current:

ackage:

35-75 V

35-75 V

12 V

12 V

50 A

(600W)

Half-brick

Half-brick

T

pecification

Product # PQ60120HZA50

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2HZ612J Rev. A

8/20/07

Page 4

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)

2250

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

35

48

75

V

100V transient for 100ms

Input Under-Voltage Lockout

Turn-On Voltage Threshold

31.5

33.0

34.5

V

Turn-Off Voltage Threshold

29.0

30.5

32.0

V

Lockout Voltage Hysteresis

1.5

2.5

3.5

V

Maximum Input Current

20

A

100% Load, 35 Vin, trimmed up 5%

No-Load Input Current

125

200

mA

Disabled Input Current

20

40

mA

Response to Input Transient

1.0

V

0.25V/µs input transient

Input Reflected Ripple Current

5

20

mA

RMS thru 4.7µH inductor

Input Terminal Ripple Current

220

mA

RMS

Recommended Input Fuse

30

A

Fast blow external fuse recommended

Input Filter Component Values (L\C)

0.75\11

µH\µF

Recommended External Input Capacitance

220

µF

Typical ESR 0.1-0.2W

OUTPUT CHARACTERISTICS

Output Voltage Set Point

11.72

12.00

12.28

V

Output Voltage Regulation

+1.0\120

%\mV

+1.0\120

%\mV

Over Temperature

+90

+240

mV

Total Output Voltage Range

11.60

12.40

V

Over sample, line, load, temperature & life

20MHz bandwidth

Peak-to-Peak

90

150

mV

Full Load

RMS

20

30

mV

Full Load

Operating Output Current Range

0

50

A

Subject to thermal derating

Output DC Current-Limit Inception

55

60

65

A

Output Voltage 10% Low

5.0

V

Back-Drive Current Limit while Enabled

13

18

23

A

Negative current drawn from output source

Back-Drive Current Limit while Disabled

0

3

4

mA

Negative current drawn from output source

Maximum Output Capacitance

12

mF

12Vout at 50A Resistive Load

DYNAMIC CHARACTERISTICS

Output Voltage during Load Current Transient

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

350

mV

50% to 75% to 50% Iout max, 470 µF load cap

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

500

mV

“

Settling Time

1

ms

To within 1% Vout nom

Turn-On Transient

Turn-On Time

24

27

30

ms

Full load, ON/OFF to Vout=90% nom.

Output Voltage Overshoot

2

%

EFFICIENCY

100% Load

94.5

95.0

%

Figures 1 & 2

50% Load

96.5

%

Figures 1 & 2

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 3 - 6 for derating curves

ISOLATION CHARACTERISTICS

Isolation Voltage (dielectric strength)

2250

V

Isolation Resistance

30

MW

1000

pF

PQ60120HZA50 ELECTRICAL CHARACTERISTICS

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

Note 1: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference.

Note 2: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com).

Note 3: If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup mode, with a 500ms off-time.

Note 4: Higher values of isolation capacitance can be added external to the module.