Product # PQ60280HZx22

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0005788 Rev. D

12/26/13

Page 4

Input:

35-75V

Output:

28V

Current:

21.5A

Package:

Half-brick

Electrical Characteristics

PQ60280HZx22 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

1 s transient, square wave

Isolation Voltage

Input to Output

2250

V

Operating Temperature

-40

100

°C

Storage Temperature

-45

125

°C

Voltage at ON/OFF input pin

-2

18

V

INPUT CHARACTERISTICS

Operating Input Voltage Range

35

48

75

V

Input Under-Voltage Lockout

Turn-On Voltage Threshold

32.0

33.0

34.0

V

Turn-Off Voltage Threshold

30.0

31.0

32.0

V

Lockout Voltage Hysteresis

1.5

2.0

2.5

V

Maximum Input Current

21

A

100% Load, 35V Vin, trimmed up 10%

No-Load Input Current

180

230

mA

Disabled Input Current (Option N)

5

8

mA

Disabled Input Current (Option P)

20

30

40

mA

Response to Input Transient

4

V

0.50V/μs input transient, full load, 100μF load cap

Input Reflected Ripple Current

30

mA

RMS thru 4.7μH inductor

Input Terminal Ripple Current

250

mA

RMS

Recommended Input Fuse

40

A

Fast acting external fuse recommended

Recommended External Input Capacitance

220

µF

Typical ESR 0.1-0.2Ω; Figure 13

Input Filter Component Values (L\C)

0.75\11

µH\µF Internal values

OUTPUT CHARACTERISTICS

Output Voltage Set Point

27.16

28.00

28.84

V

Output Voltage Regulation

Over Line

±0.25

%

See note 1

Over Load

±0.25

%

See note 1

Over Temperature

-420

420

mV

Total Output Voltage Range

27.30

28.70

V

Over sample, line, load, temperature & life

Output Voltage Ripple and Noise

20MHz bandwidth; see Note 2

Peak-to-Peak

170

340

mV

Full load

RMS

45

90

mV

Full load

Operating Output Current Range

0

21.5

A

Subject to thermal derating

Output DC Current-Limit Inception

23.0

25.0

27.5

A

Output Voltage 10% Low

Output DC Current-Limit Shutdown Voltage

11.2

V

See note 3

Back-Drive Current Limit while Enabled

7

A

Negative current drawn from output

Back-Drive Current Limit while Disabled

0

3

4

mA

Negative current drawn from output

Maximum Output Capacitance Electrolytic

5

mF

Nominal Vout at full load (resistive load)

EFFICIENCY

100% Load

94

%

Figures 1 - 2

50% Load

95

%

Figures 1 - 2

Technical Specifications