PQ50090QGB11 datasheet(6/13 Pages) SYNQOR | Input under-voltage lockout disables converter at low input voltage

Part No.	PQ50090QGB11

Description	Input under-voltage lockout disables converter at low input voltage

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Manufacturer	SYNQOR [SynQor Worldwide Headquarters]

Direct Link	http://www.synqor.com

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6 / 13 page

Technical Specification

Product # PQ50090QGB11

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0005485 Rev. A

03/29/10

Page 6

Input:48V

Output:9.0V

Current:11A

Part No.:PQ50090QGB11

0

2

4

6

8

10

12

25

40

55

70

85

Ambient Air Temperature(°C)

400LFM(2.0m/s)

300LFM(1.5m/s)

200LFM(1.0m/s)

100LFM(0.5 m/S)

Semiconductor junction temperature is

within 1°C of surface temperature

PQ50090QGB11 Datasheet Figures

60

65

70

75

80

85

90

95

100

0

1

2

3

4

5

6

7

8

9

10

11

Load Current (A)

44 Vin

48 Vin

52 Vin

0

2

4

6

8

10

12

14

0

1

2

3

4

5

6

7

8

9

10

11

Load Current (A)

44 Vin

48 Vin

52 Vin

Figure 1: Efficiency at nominal output voltage vs. load current for minimum,

nominal, and maximum input voltage at 25°C.

Figure 2: Power dissipation at nominal output voltage vs. load current for

minimum, nominal, and maximum input voltage at 25°C.

Figure 3: Maximum output power-derating curve vs. ambient air temperature

for airflow rates of 100LFM through 400LFM with air flowing from pin 3 to pin

1 (nominal input voltage).

Figure 4: Thermal plot of converter at 11A load current (99W) with 70°C

baseplate temperature. Air is flowing across the converter from pin 3 to pin 1

(nominal input voltage).

Figure 5: Turn-on transient at full load (resistive load) (4 ms/div).

Ch 1: Vout (2 V/div)

Ch 2: ON/OFF input (5 V/div)

Figure 6: Turn-on transient at zero load (4ms/div).

Ch 1: Vout (2V/div)

Ch 2: ON/OFF input (5V/div)

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PQ50090QGB11 Datasheet(PDF) 6 Page - SynQor Worldwide Headquarters

PQ50090QGB11 Datasheet(HTML) 6 Page - SynQor Worldwide Headquarters

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