Input:

Input:

Output:

Output:

Current:

Current:

ackage:

35-75 V

35-75 V

12 V

12 V

4 A

4 A

Eighth-brick

Eighth-brick

T

pecification

Product # PQ60120EML04

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2EM612E Rev. C

04/25/06

Page 6

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

0

25

40

55

70

85

Ambient Air Temperature (

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

50 LFM (0.25 m/s)

Figure 7: Maximum output power-derating curves vs. ambient air tem-

perature for airflow rates of 50 LFM through 400 LFM with air flowing

from input to output (nominal input voltage).

Figure 8: Thermal plot of converter at 4.2 amp load current (50W) with

verter from input to output (nominal input voltage).

Figure 9: Turn-on transient at full load (resistive load) (10 ms/div).

Input voltage pre-applied. Ch 1: Vout (5V/div); Ch 2: ON/OFF input

(5V/div)

Figure 10: Turn-on transient at zero load (10 ms/div).

Ch 1: Vout (5V/div)

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

of Iout(max); dI/dt = 0.1A/µs). Load cap: 10µF, 100 m

Ω

ESR tantalum capacitor

and 1µF ceramic capacitor. Ch 1: Vout (200mV/div), Ch 2: Iout (1A/div).

50% of Iout(max): dI/dt = 5A/µs). Load cap: 470µF, 30 m

Ω

ESR tantalum

capacitor and 1µF ceramic cap. Ch 1: Vout (200mV/div), Ch 2: Iout (1A/div).

Semiconductor junction temperature is

within 1°C of surface temperature