PM8800 STMicroelectronics, PM8800 Datasheet - Page 10

• Manufacturer Part Number: PM8800
• Description: Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller with support of external source
• Manufacturer: STMicroelectronics

Electrical specifications
3.2
10/35
Table 5.
(V
Detection and classification
Bias current
Under Voltage Lock-Out
Hot swap MOSFET
IN
V
V
Symbol
R
UVLO_R
UVLO_F
= 48 V, VCC = open, T
DSON
IIN
Electrical characteristic
Electrical characteristics - interface section
Signature enable
Signature resistance
Signature disable
classification turn on
Classification turn on
hysteresis
Classification turn-off
RCLASS voltage during
classification
Supply current during
classification
V
UVLO release
UVLO lock-out
UVLO hysteresis
MOSFET resistance
Default in-rush
current limit
Default in-rush
current limit
Default in-rush
current limit
Adjustable in-rush current
limit
Default DC current limit
Adjustable DC
current limit precision
IN
supply current
Parameter
A
= 25 °C unless otherwise specified).
V
V
V
V
V
V
V
V
15 V < V
1.5 V < V
R
R
IN
IN
IN
IN
IN
IN
IN
IN
AUXI_IRL
DCLL
rising
rising
rising
inside classification range
= 48 V; VCC = 10 V
rising
falling
> 30 V
= From 15.4 kΩ to 82 kΩ
IN
IN
Test conditions
= 82 kΩ
< 30 V
< 15 V
23.5
10.5
21.5
1.37
120
220
390
120
390
-15
30
Min
37
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
24.5
11.5
1.40
38.5
31.5
Typ
140
250
440
140
440
1.4
1.8
7.0
0.5
23
3
-
25.5
12.5
24.5
1.43
160
280
490
160
490
+15
1.5
40
Max
33.5
1
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
PM8800A
Unit
mA
mA
mA
mA
mA
mA
mA
kΩ
%
V
V
V
V
V
V
V
V
Ω