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參數(shù)資料
| 型號： | STHS2377L |
| 廠商： | 意法半導體 |
| 英文描述： | IEEE 802.3af PoE Powered Device (PD) Interface Controller(IEEE802.3af PoE PD(受電設備)接口控制器) |
| 中文描述： | IEEE 802.3af標準的PoE供電設備（PD）接口控制器（IEEE802.3af標準的PoE（私隱受電設備）接口控制器） |
| 文件頁數(shù)： | 14/20頁 |
| 文件大?。?/td> | 187K |
| 代理商： | STHS2377L |
Electrical parameters STHS237xA, STHS237xL
STHS237x
14/20
1.
Classification tested with exact resistor values. A 1% tolerance of classification resistor values is sufficient for compliance
with IEEE 802.3af classification current limits.
Percentage of the intial steady state RTN inrush current value, below which inrush is terminated and PG goes active.
Not tested in production.
Gradually increase V
RTN
from 0V until I
RTN
disappears.
2.
3.
4.
PG deglitch
Delay rising and falling PG
75
150
225
μs
V
PG(OL)
Output low voltage
I
PG
= 2mA, V
RTN
= 34V,
V
VDD
= 38V, V
RTN
falling
0.12
0.4
V
I
PG
= 2mA, V
RTN
= 0V, V
VDD
= 25V, for
STHS2376x V
UVLO
= 0V
0.12
0.4
V
I
OL(PG)
PG pin leakage current
V
VDD
= V
PG
= 57V, V
RTN
= 0V
0.1
1
μA
Undervoltage lockout (UVLO)
V
UVLO(R)
UVLO Thresholds,
STHS2375x
Voltage at V
DD
pin, V
VDD
rising
38.4
39.3
40.4
V
V
UVLO(F)
Voltage at V
DD
pin, V
VDD
falling
29.6
30.5
31.5
V
V
UVLO(H)
Hysteresis
8.3
8.8
9.1
V
V
UVL(R)
UVLO Thresholds,
STHS2376x
Voltage at UVLO pin, V
UVLO
rising
2.43
2.49
2.57
V
V
UVLO(F)
Voltage at UVLO pin, V
UVLO
falling
1.87
1.93
1.98
V
V
UVLO(H)
Hysteresis
0.53
0.56
0.58
V
V
UVLO(R)
UVLO Thresholds,
STHS2377x
Voltage at V
DD
pin, V
VDD
rising
34.1
35.1
36.0
V
V
UVLO(F)
Voltage at V
DD
pin, V
VDD
falling
29.7
30.5
31.4
V
V
UVLO(H)
Hysteresis
4.3
4.5
4.8
V
I
IL(UVLO)
UVLO pin leakage
current (STHS2376x
only)
V
UVLO
= 0 to 5V
–1
1
μA
Thermal shutdown
T
SHUTDOWN
Shutdown
temperature
(3)
,
temperature rising
140
°C
T
SHUTDOWN H
Hysteresis
(3)
20
°C
Supply current
I
DD
Operating current
250
450
μA
Table 6.
DC characteristics (continued)
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
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