PM8803 STMicroelectronics, PM8803 Datasheet - Page 13

• Manufacturer Part Number: PM8803
• Description: High efficiency integrated IEEE 802.3at PoE-PD interface and PWM controller type 2 PSE indicator, plus support for forward active clamp topology
• Manufacturer: STMicroelectronics

PM8803
3.3
Table 5.
Detection and classification
Bias current
Idd
Undervoltage lockout
V
V
Hot-swap MOSFET
R
UVLO_R
UVLO_F
DSON
Symbol
Electrical characteristics
VDD = 48 V, VC = not loaded, Cvc = 1 µF, VB = not loaded, Cvb = 1 µF,
GAT1 and GAT2 = not loaded, T
Values in Bolded type apply over the full operating ambient temperature range.
Electrical characteristics - interface section
Signature enable
Signature pull-down
resistance
Signature disable
Classification enable
Classification turn-off
Mark event threshold /
Classification turn-off
Classification reset
threshold
CLS voltage
CLS max current
capability
VDD supply current
during detection
VDD supply current
during classification
VDD supply current
during mark event
UVLO release
UVLO lockout
UVLO hysteresis
MOSFET resistance
Default inrush current
limit
Default DC current limit
Parameter
VDD rising
VDD rising
VIN rising
VIN falling
within signature range
VDD rising
VDD rising
VDD falling
VDD falling
within classification range with
44 mA load
within classification range with CLS
pin grounded
VDD = 8 V
Doc ID 018559 Rev 1
A
= 25 °C unless otherwise specified.
Test conditions
Min.
10.3
11.3
21.5
500
125
590
1.3
3.5
50
34
30
9
3
Electrical specifications
Typ.
10.8
23.0
0.45
150
900
800
140
640
1.4
12
10
65
35
31
4
4
Max.
1200
1100
11.3
12.7
24.5
36.5
32.5
350
155
690
1.5
1.5
4.5
11
80
10
5
1
Unit
mA
mA
mA
μA
μA
μA
13/34
Ω
Ω
V
V
V
V
V
V
V
V
V
V