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TPS2074 Datasheet(PDF) 13 Page - Texas Instruments

Part No. TPS2074
Description  FOUR-PORT USB HUB POWER CONTROLLERS
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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TPS2074 Datasheet(HTML) 13 Page - Texas Instruments

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TPS2074, TPS2075
FOUR-PORT USB HUB POWER CONTROLLERS
SLVS288A – SEPTEMBER 2000 – REVISED FEBRUARY 2001
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
01
2
3
4
5
6
789
10
VI(BP) = 5 V
TA = 25°C
BP_DIS = 5 V
t – time – ms
VO(PG)
(2 V/div)
VO
(3.3V_OUT)
(1 V/div)
Figure 17. SP to BP Automatic
Switchover Disabled
0
40
80
120 160 200 240 280 320 360 400
VI(BP) = 5 V
TA = 25°C
BP_DIS = 0 V or Open
t – time – ms
VO(PG)
(2 V/div)
VO
(DPO_RST)
(1 V/div)
Figure 18. SP to BP Automatic
Switchover Enabled
VI(BP) = 5 V
TA = 25°C
BP_DIS = 5 V
t – time – ms
VO(PG)
(2 V/div)
VO
(DPO_RST)
(1 V/div)
Figure 19. SP to BP Automatic
Switchover Disabled
0
40
80
120 160 200 240 280 320 360 400
0
100 200 300 400 500 600 700 800 900 1000
t – time –
µs
VI(BP)
∆VO
(3.3V_OUT)
(0.05 V/div)
5.25 V
4.25 V
Figure 20. Line Transient Response
TA = 25°C
CL (3.3 V–OUT) = 4.7 µF
IO (3.3 V–OUT) = 100 mA


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