Product # PQ50050HPB50

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0005487 Rev. A

03/18/10

Page 4

Input:

Output:

Current:

Part No.:

PQ50050HPB50 Electrical Characteristics (continued)

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

DYNAMIC CHARACTERISTICS

Input Voltage Ripple Rejection

60

dB

120 Hz; fig. 17

120 Hz; fig. 17

Output Voltage during Load Current Transient

Step Change in Output Current (0.1 A/µs)

200

mV

50% to 75% to 50% Iout max; figure 9

50% to 75% to 50% Iout max; figure 9

Step Change in Output Current (5 A/µs)

300

mV

50% to 75% to 50% Iout max; figure 10

50% to 75% to 50% Iout max; figure 10

Settling Time

100

µs

To within 1% Vout nom

To within 1% Vout nom

Turn-On Transient

Turn-On Time

22

30

ms

Full load, Vout=90% nom.; Figs. 7 & 8

Full load, Vout=90% nom.; Figs. 7 & 8

Start-Up Inhibit Time

180

200

240

ms

-40oC to +125oC; Figure A

Output Voltage Overshoot

0

%

10,000 µF load capacitance, Iout = 0A

10,000 µF load capacitance, Iout = 0A

ISOLATION CHARACTERISTICS

Isolation Voltage (dielectric strength)

Isolation Voltage (dielectric strength)

2000

V

See Absolute Maximum Ratings

See Absolute Maximum Ratings

Isolation Resistance

30

MΩ

Isolation Capacitance (input to output)

Isolation Capacitance (input to output)

3300

pF

See Note 2

See Note 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

Maximum Baseplate Temperature

100

°C

Applies to baseplated units only

FEATURE CHARACTERISTICS

Switching Frequency

198

220

242

kHz

Regulation and isolation stages

ON/OFF Control (Option P)

Off-State Voltage

-2

0.8

V

On-State voltage

2.7

18

V

ON/OFF Control (Option N)

Off-State Voltage

2.7

18

V

On-State voltage

-2

0.8

V

ON/OFF Control (either Option)

Figures A, B

Pull-Up Voltage

Vin/6

15

V

Pull-Up Resistance

42

kΩ

Output Voltage Trim Range

-20

+10

%

Measured across Pins 9 & 5; Figure C

Output Voltage Remote Sense Range

+10

%

Measured across Pins 9 & 5

Output Over-Voltage Protection

115

120

125

%

Over full temp range; % of nominal Vout

Over-Temperature Shutdown OTP Trip Point

120

°C

Average PCB Temperature

Over-Temperature Shutdown Restart Hysteresis

10

°C

Load Current Scale Factor

1200

See App Note: Output Load Current Calc.

RELIABILITY CHARACTERISTICS

Calculated MTBF (Telcordia) TR-NWT-000332

2.13

106 Hrs. 75% load, 300LFM, 40 °C Ta

Calculated MTBF (MIL-217) MIL-HDBK-217F

1.3

106 Hrs. 75% load, 300LFM, 40 °C Ta

Field Demonstrated MTBF

106 Hrs. See our website for details

Note 1: For applications requiring reduced output voltage ripple and noise, consult SynQor application support e-mail: support@synqor.com

Note 2: Higher values of isolation capacitance can be added external to the module.