Product # PQ50050HPB50

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0005487 Rev. A

03/18/10

Page 3

Input:

Output:

Current:

Part No.:

PQ50050HPB50 Electrical Characteristics

Ta = 25 °C, airflow rate = 300 LFM, Vin = 48V dc unless otherwise noted; full operating temperature range is -40 °C to +70 °C baseplate temperature

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

Parameter

Min.

Typ.

Max. Units Notes & Conditions

Notes & Conditions

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Non-Operating

100

V

Continuous

Operating

52

V

Continuous

Isolation Voltage

Input to Output

2000

V dc

Basic insulation level, Pollution degree 2

Operating Temperature

-40

100

°C

Baseplate temperature

Storage Temperature

-55

125

°C

Voltage at ON/OFF input pin

-2

18

V

INPUT CHARACTERISTICS

Operating Input Voltage Range

44

48

52

V

Input Under-Voltage Lockout

Turn-On Voltage Threshold

31.5

33.3

34.4

V

Turn-Off Voltage Threshold

29.5

31

32.4

V

Lockout Voltage Hysteresis

2.2

2.3

2.4

V

Input Over-Voltage Lockout

Turn-On Voltage Threshold

58.2

59.7

61.3

V

Turn-Off Voltage Threshold

56.6

58.1

59.2

V

Lockout Voltage Hysteresis

1.5

1.6

1.8

V

Maximum Input Current

6.0

A

100% Load, 44 Vin

100% Load, 44 Vin

No-Load Input Current

No-Load Input Current

100

120

mA

Disabled Input Current

2

5

mA

Inrush Current Transient Rating

Inrush Current Transient Rating

0.04

A

Response to Input Transient

350.0

mV

1000V/ms input transient

Input Reflected Ripple Current

Input Reflected Ripple Current

5

mA

RMS thru 10μH inductor; Figs. 11 & 13

RMS thru 10μH inductor; Figs. 11 & 13

Input Terminal Ripple Current

200

mA

RMS: Figs. 11 & 12

RMS: Figs. 11 & 12

Recommended Input Fuse

Recommended Input Fuse

20

A

fast blow external fuse recommended

Input Filter Component Values (C1\L\C2)

1\3\6.4

µF\µH\µF internal values, see Figure E

internal values, see Figure E

Recommended External Input Capacitance

Recommended External Input Capacitance

47

µF

Typical ESR 0.1-0.2 Ω, See Figure 11

Typical ESR 0.1-0.2 Ω, See Figure 11

OUTPUT CHARACTERISTICS

Output Voltage Set Point

Output Voltage Set Point

4.95

5.00

5.05

V

Factory pre-set with Sense(+), Sense(-) open

Output Voltage Regulation

Over Line

±0.05 \ 3

±0.1 \ 5 % \ mV

Over Load

±0.1 \ 5

+0.2 \ 10 % \ mV

Over Temperature

±15

±30

mV

Total Output Voltage Range

4.85

5.15

V

Over sample, line, load, temperature & life

Output Voltage Ripple and Noise

20 MHz bandwidth; Figs. 11 & 14

Peak-to-Peak

30

60

mV

Full load, see Figures 11 & 14

RMS

5

10

mV

Full load, see Figures 11 & 14

Operating Output Current Range

0

50

A

Subject to thermal derating; Fig. 5

Output DC Current-Limit Inception

53.7

57.9

62.1

A

Output voltage 10% Low; Fig. 6

Output DC Current-Limit Shutdown Voltage

3.5

V

Back-Drive Current Limit while Enabled

1.5

2.5

3.8

A

Negative current drawn from output

Back-Drive Current Limit while Disabled

0

20

50

mA

Negative current drawn from output

Maximum Output Capacitance Ceramic

34,000

µF

5Vout at 50A (Resistive Load)

EFFICIENCY

100% Load

92

%

Figures 1-4

50% Load

93

%

Figures 1-4