Technical Specification
10
9
8
Input:
Outputs:
Current:
Package:
36-75 V
5.0 V/ 3.3 V
10 A
Quarter-brick
Iout (A)
7
6
5
4
3
10
25
40
55
70
85
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
Ambient Air Temperature (°C)
Figure 1:
-48V output (maximum power) derating curves vs. ambient air tem-
perature for airflow rates of 100 LFM through 400 LFM with air flowing across
the converter from pin 7 to pin 1 (48 Vin, 3.3V mgmt power output @ 1.5 A).
4.0
Figure 2:
Thermal plot of converter at 6.2A load current from -48V out-
put (298W) with 55
°
C air flowing at the rate of 200 LFM. Air is flowing
across the converter from pin 7 to pin 1 (48 Vin, 3.3V output @ 1.5 A).
3.5
3.0
Iout (A)
2.5
2.0
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
1.5
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
1.0
10
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 3:
3.3V output (maximum power) derating curves vs. ambient air tem-
perature for airflow rates of 100 LFM through 400 LFM with air flowing across
the converter from pin 7 to pin 1 (48 Vin, main output power output @ 4 A).
Figure 4:
Thermal plot of converter at 2.9A load current from 3.3V out-
put (9.6W) with 55
°
C air flowing at the rate of 200 LFM. Air is flowing
across the converter from pin 7 to pin 1 (48 Vin, -48V output @ 4 A).
Figure 5:
48V hot-swap turn-on transient (100uF electrolytic filter
capacitor CF). Top trace: VRTN_OUT w.r.t. -48V_OUT (20V/div),
Bottom trace: Input Feed Current (2A/div).
Product # IQ65033QMA10
Phone 1-888-567-9596
Figure 6:
8.70ms zero volt transient (564uF electrolytic hold-up capaci-
tor CH, 100uF electrolytic filter capacitor CF). Ch 1: Input Feed A/B
Voltage (20V/div). Ch 2: VRTN_OUT w.r.t. -48V_OUT (20V/div). Ch 3:
HU_CAP w.r.t. -48V_OUT (20V/div). Ch 4: 3.3V_OUT (200mV/div).
Doc.# 005-IQ5033S Rev. G
05/04/09
Page 6
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