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BQ57120EZB38 Datasheet(PDF) 7 Page - SynQor Worldwide Headquarters

Part No. BQ57120EZB38
Description  Output over-voltage protection
Download  13 Pages
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Maker  SYNQOR [SynQor Worldwide Headquarters]
Homepage  http://www.synqor.com
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BQ57120EZB38 Datasheet(HTML) 7 Page - SynQor Worldwide Headquarters

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Product # BQ57120EZB38
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006442 Rev. D
02/17/16
Page 7
Input:
40-65V
Output:
12.0V
Current:
38A
Package:
Eighth-brick
0
5
10
15
20
25
30
35
40
25
40
50
60
70
85
Ambient Air Temperature (ºC)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0
100
200
300
400
500
25
40
50
60
70
85
Ambient Air Temperature (ºC)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
Figure 7: Maximum output current derating curve vs. ambient air temperature
(with both baseplate and ¼” heat sink) at different airflow rates with air flowing
from output to input (nominal input voltage).
Figure 8: Maximum output power derating curve vs. ambient air temperature
(with both baseplate and ¼” heat sink) at different airflow rates with air flowing
from output to input (nominal input voltage).
Figure 9: Turn-on transient at 100% load (resistive load) (5ms/div). Load cap:
5mF output capacitance. Input voltage pre-applied. Ch 1: ON/OFF input (2 V/
div). Ch 2: Vout (2V/div).
Figure 10: Turn-on transient at zero load (5ms/div). Load cap: 5mF output
capacitance. Ch 1: ON/OFF input (2 V/div). Ch 2: Vout (2V/div).
Figure 11: Output voltage response to step-change in load current (50%-75%-
50% of Iout(max); dI/dt = 0.1A/µs). Load cap: 15µF tantalum cap and 1µF
ceramic cap. Ch 1: Vout (500mV/div), Ch 2: Iout (20A/div).
Figure 12: Output voltage response to step-change in load current (50%-75%-
50% of Iout(max): dI/dt = 1A/µs). Load cap: 15µF, 30 mΩ ESR tantalum cap
and 1µF ceramic cap. Ch 1: Vout (500 mV/div), Ch 2: Iout (20A/div).
Technical Figures


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