UPD720114K9-4E4-A Renesas Electronics America, UPD720114K9-4E4-A Datasheet - Page 20

• Manufacturer Part Number: UPD720114K9-4E4-A
• Manufacturer: Renesas Electronics America

Specifications of UPD720114K9-4E4-A

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Over-current Response Timing
18
CSB pin operation region
Over-current response time from CSB low
to PPB high (Figure 2-7)
Remark
Hub power supply
Up port D+ line
PPB pin output
CSB pin input
CSB(4:1)
PPB(4:1)
The active period of the CSB pin is in effect only when the PPB pin is ON.
There is a delay time of approximately 4 ms duration at the CSB pin.
Parameter
Bus power: Up port connection
Self power: Power supply ON
Figure 2-7. Over-current Response Timing
Port power
supply ON
t
Bus reset
OC
Symbol
Figure 2-8. CSB/PPB Timing
Data Sheet S17462EJ6V0DS
t
4 ms
OC
Condition
4 ms
inrush current
connection
CSB detection
Device
delay time
Min.
4
4 ms
Typ.
4 ms
CSB active
Max.
5
period
Overcurrent
μ
generation
Output
PD720114
cut-off
Unit
ms