TPS2070 datasheet(14/29 Pages) TI

Part #	TPS2070

Description	FOUR-PORT USB HUB POWER CONTROLLERS

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Manufacturer	TI [Texas Instruments]

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14 / 29 page

TPS2070, TPS2071

FOUR-PORT USB HUB POWER CONTROLLERS

SLVS287A – SEPTEMBER 2000 – REVISED FEBRUARY 2001

14

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

PARAMETER MEASUREMENT INFORMATION

012

3

4

5

67

89

10

VI(BP) = VI(SP) = 5 V

TA = 25°C

t – time – ms

VI(EN)

(2 V/div)

IO(OUT)

(0.5 A/div)

Figure 13. Short-Circuit Current (SP Switch),

Device Enabled Into Short

01

2

3

4

5

67

89

10

VI(BP) = VI(SP) = 5 V

TA = 25°C

t – time – ms

VO(OC)

(2 V/div)

IO(OUT)

(0.5 A/div)

Figure 14. OC Response (SP Switch),

Device Enabled Into Short

01

2

3

4

5

67

8

9

10

VI(BP) = 5 V

TA = 25°C

t – time – ms

VO(OC)

(2 V/div)

IO(OUT)

(0.1 A/div)

Figure 15. OC Response (BP Switch),

Device Enabled Into Short

VI(BP) = 5 V

TA = 25°C

BP_DIS = 0 V or Open

CL(3.3 V_OUT) = 4.7 µF

RL(3.3 V_OUT) = 33 Ω

CL(PG_DLY) = 0.47 µF

t – time – ms

VO(PG)

(2 V/div)

VO

(3.3V_OUT)

(1 V/div)

Figure 16. SP to BP Automatic

Switchover Enabled

0

2

4

6

8

10

12

14

16

18

20

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