參數(shù)資料
型號(hào): UPD720114GA-9EU-A
廠商: NEC Corp.
英文描述: MOS INTEGRATED CIRCUIT
中文描述: 馬鞍山集成電路
文件頁(yè)數(shù): 17/32頁(yè)
文件大?。?/td> 300K
代理商: UPD720114GA-9EU-A
Data Sheet S17462EJ2V0DS
17
μ
PD720114
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
4
5
ms
Figure 2-7. Over-current Response Timing
CSB(4:1)
PPB(4:1)
t
OC
Figure 2-8. CSB/PPB Timing
Bus Reset
Port power
supply ON
DEVICE
connection
inrush current
Output
cut-off
Overcurrent
generation
Hub power supply
Up port D+ line
PPB pin output
CSB pin input
CSB pin opration region
Bus power: Up port connection
Self power: Power supply ON
CSB active
period
CSB detection
delay time
4ms
4ms
4ms
4ms
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 4 ms duration at the CSB pin.
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