TPS2070DAPR datasheet(15/29 Pages) TI

15 / 29 page

TPS2070, TPS2071

FOUR-PORT USB HUB POWER CONTROLLERS

SLVS287A – SEPTEMBER 2000 – REVISED FEBRUARY 2001

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

PARAMETER MEASUREMENT INFORMATION

789

VI(BP) = 5 V

TA = 25°C

BP_DIS = 5 V

t – time – ms

VO(PG)

(2 V/div)

(3.3V_OUT)

(1 V/div)

Figure 17. SP to BP Automatic

Switchover Disabled

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)

(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)

(DPO_RST)

(1 V/div)

Figure 19. SP to BP Automatic

Switchover Disabled

120 160 200 240 280 320 360 400

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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