参数资料
型号: TPS2074
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24
封装: PLASTIC, SSOP-24
文件页数: 3/24页
文件大小: 389K
代理商: TPS2074
TPS2074, TPS2075
FOUR-PORT USB HUB POWER CONTROLLERS
SLVS288 – SEPTEMBER 2000
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
0
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2800
3200
3600
4000
VI(BP) = 5 V
TA = 25°C
CL(PG_DLY) = 0.47 F
t – time – ms
VO
(3.3V_OUT)
(2 V/div)
VO
(PG_DLY)
(2 V/div)
Figure 9. PG_DLY Rise Time With a 0.47-
F Capacitor
0
100 200 300 400 500 600 700 800 900 1000
VI(BP) = 5 V
TA = 25°C
CL(PG_DLY) = 0.47 F
t – time – ms
VO
(3.3V_OUT)
(2 V/div)
VO(PG)
(2 V/div)
Figure 10. Turnon Delay (3.3V_OUT to PG)
01
2
3
4
5
67
8
9
10
VI(BP) = 5 V
TA = 25°C
CL(PG_DLY) = 0.47 F
t – time – ms
VO
(3.3V_OUT)
(2 V/div)
VO(PG)
(2 V/div)
Figure 11. Turnoff Time (3.3V_OUT to PG)
01
2
3
4
5
67
89
10
VI(BP) = 5 V
TA = 25°C
t – time – ms
VI(EN)
(2 V/div)
IO(OUT)
(0.1A/div)
Figure 12. Short-Circuit Current (BP Switch),
Device Enabled Into Short
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