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參數(shù)資料
| 型號(hào)： | PD69101ILQ |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, PQCC24 |
| 封裝： | 4 X 5 MM, ROHS COMPLIANT, PLASTIC, QFN-24 |
| 文件頁數(shù)： | 13/18頁 |
| 文件大小： | 448K |
| 代理商： | PD69101ILQ |
1 Port PSE PoE PD69101 Controller
Dynamic Characteristics
The PD69101 utilizes three current level thresholds (Imin, Icut, Ilim) and three timers (Tmin, Tcut, Tlim).
Loads that consume Ilim current for more than Tlim are labeled as 'short circuit state' and shutdown.
Loads that dissipate more than Icut for longer than Tcut are labeled as ‘overloads’ and are shutdown.
If output power is below Imin for more than Tmin, the PD is labeled as ‘no-load’ and is shutdown.
WWW
.
Automatic recovery from over-load and no-load conditions is attempted every TOVLREC periods (typically 1 second).
Output power is limited to Ilim, which is a maximum peak current allowed at the port.
Microse
m
i
Table 1: IEEE802.3 AF Mode Parameters
PARAMETER
CONDITIONS
MI N.
TYP.
MAX.
UNIT
Automatic Recovery from No-
load Shutdown
TUDLREC value, measured from port shutdown
point (can be modified through control port)
1
Sec
Cutoff timers Accuracy
Typical accuracy of Tcut
2
ms
.CO
M
Inrush Current
IInrsh
For t=50 ms, Cload=180 uF max.
400
450
mA
Output Current Operating
Range
Iport
Continuous operation after startup
period.
10
375
mA
Output Power Available
Operating Range
Pport
Continuous operation after startup
period, at port output.
0.57
15.4
W
Imin1
Must disconnect for T greater than
TUVL
0
5
mA
Off mode Current
Imin2
May or may not disconnect where
T is greater than TUVL
5
7.5
10
mA
PD Power Maintenance
Request Drop-out Time Limit
TPMDO
Buffer period to handle transitions
300
400
ms
Over-load Current Detection
Range
Icut
Time limited to TOVL
350
400
mA
Over Load Time Limit
TOVL
50
75
ms
Turn On Rise Time
Trise
From 10% to 90% of Vport
(Specified for PD load consisting of 100 uF
capacitor in parallel to 200
Ω).
15
us
Turn Off Time
Toff
From Vport to 2.8 Vdc
500
ms
Time Maintain Power
Signature
TMPS
DC modulation time for DC
disconnect
49
ms
PD69101
Copyright 2009
Microsemi
Rev. 1.1, 08-March-10
Analog Mixed Signal Group
2381 Morse Avenue, Irvine, CA 92614, USA; Within the USA: (800) 713-4113, Outside the USA: (949) 221-7100 Fax: (949) 756-0308
4
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