參數(shù)資料
型號(hào): UPD720113GK-9EU
廠商: NEC Corp.
英文描述: USB 2.0 HUB CONTROLLER
中文描述: USB 2.0集線器控制器
文件頁(yè)數(shù): 17/32頁(yè)
文件大?。?/td> 362K
代理商: UPD720113GK-9EU
Data Sheet S16618EJ3V0DS
17
μ
PD720113
Over-current Response Timing
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Over-current response time from CSB
low to PPB high (Figure 2-7)
t
OC
500
625
μ
s
Figure 2-7. Over-current Response Timing
CSB(7:1)
PPB(7:1)
t
OC
Figure 2-8. CSB/PPB Timing
Bus reset
500
μ
s
500
μ
s
500
μ
s
500
μ
s
Hub power supply
PPB pin output
CSB pin input
CSB pin operation region
Up port D
+
line
Port power
supply ON
Output
cut-off
Overcurrent
generation
CSB detection
delay time
CSB active
period
Device
connection
inrush current
Bus power: Up port connection
Self power: Power supply ON
Remark
The active period of the CSB pin is in effect only when the PPB pin is ON.
There is a delay time of approximately 500
μ
s duration at the CSB pin.
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