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TPS2074 Datasheet(PDF) 9 Page - Texas Instruments

Part No. TPS2074
Description  FOUR-PORT USB HUB POWER CONTROLLERS
Download  27 Pages
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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TPS2074 Datasheet(HTML) 9 Page - Texas Instruments

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TPS2074, TPS2075
FOUR-PORT USB HUB POWER CONTROLLERS
SLVS288A – SEPTEMBER 2000 – REVISED FEBRUARY 2001
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
thermal shutdown
PARAMETER
MIN
TYP
MAX
UNIT
TJ
Thermal shutdown
First
140
°C
TJ
Thermal shutdown
Second
150
°C
Hysteresis
First
15
°C
Hysteresis
Second
25
°C
IN
OUT
DUT
+
TEST CIRCUIT
Current
Meter
Figure 1. Current Limit Response
toff
tpd(off)
ton
tpd(on)
50%
50%
90%
90%
10%
10%
tr
tf
90%
90%
10%
10%
VI(ENx)
VO(OUTx)
VO(OUTx)
TIMING
Figure 2. Timing and Internal Voltage Regulator
Transition Waveforms
0
2
4
6
8
10
12
14
16
18
20
VI(BP) = 5 V
TA = 25°C
CL = 10 µF
RL = 50 Ω
t – time – ms
VI(EN)
(2 V/div)
VO(out)
(2 V/div)
VI(BP) = 5 V
TA = 25°C
CL = 10 µF
RL = 50 Ω
t – time – ms
VI(EN)
(2 V/div)
VO(OUT)
(2 V/div)
Figure 3. Turnon Delay and Rise Time
(BP Switch)
Figure 4. Turnoff Delay and Fall Time
(BP Switch)
0
2
4
6
8
10
12
141618
20


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