參數(shù)資料
型號: TPS2070
廠商: Texas Instruments, Inc.
英文描述: "Pwr Controller for Bus/Self Pwrd Hub w/ 5V LDO Control
中文描述: 具有 5V LDO 控制、3.3V LDO、8 個電源開關(guān)、工作態(tài)低電平 BPMode Ind,用于總線/自供電集線器的功率控制器
文件頁數(shù): 12/29頁
文件大?。?/td> 472K
代理商: TPS2070
TPS2070, TPS2071
FOUR-PORT USB HUB POWER CONTROLLERS
SLVS287A
SEPTEMBER 2000
REVISED FEBRUARY 2001
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
VI(BP) = VI(SP) = 5 V
TA = 25
°
C
CL = 10
μ
F
RL = 10
t
time
ms
VI(EN)
(2 V/div)
VO(OUT)
(2 V/div)
VI(BP) = VI(SP) = 5V
TA = 25
°
C
CL = 10
μ
F
RL = 10
t
time
ms
VI(EN)
(2 V/div)
VO(out)
(2 V/div)
Figure 5. Turnon Delay and Rise Time
(SP Switch)
Figure 6. Turnoff Delay and Fall Time
(SP Switch)
0
2
4
6
8
10
12
14
16
18
20
0
2
4
6
8
10
12
14
16
18
20
0
4
8
12
16
t
time
ms
20
24
28
32
36
40
TA = 25
°
C
CL = 4.7
μ
F
RL = 33
VI(BP)
(2 V/div)
VO
3.3V_OUT)
(1 V/div)
Figure 7. Turnon Delay and Rise Time
(3.3V_OUT)
0
20
40
60
80
t
time
ms
100 120 140 160 180 200
TA = 25
°
C
CL = 4.7
μ
F
RL = 33
VI(BP)
(2 V/div)
VO
(3.3V_OUT)
(1 V/div)
Figure 8. Turnoff Delay and Fall Time
(3.3V_OUT)
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