PM8800 STMicroelectronics, PM8800 Datasheet - Page 11

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

PM8800A
Table 5.
(V
Power good indication
Auxiliary power
IN
Symbol
nPGD
AUX II
AUX I
= 48 V, VCC = open, T
Electrical characteristics - interface section (continued)
Hot-swap V
Hysteresis
Hot-swap V
for power good
nPGD current source
nPGD pull down
resistance
nPGD threshold
AUXI_IRL UVLO release
AUXI_IRL UVLO lock-out VIN falling
AUXI / IRL switch-over
threshold
Bias voltage
Lower threshold current
Upper threshold current
Parameter
DS
GS
required
A
= 25 °C unless otherwise specified).
V
Guaranteed by design
nPGD low; I = -5 mA
nPGD rising
VIN rising
V
I
AUXII
AUXI_IRL
DS
falling
= 0 to -250 µA
Test conditions
rising
1.45
11.5
1.7
25
15
0.85
Min
20
80
(1)
(1)
(1)
(1)
(1)
Electrical specifications
1.60
1.45
12.5
Typ
100
1.1
30
16
35
2
2
2
1.75
13.5
0.5
2.3
17
Max
120
1.4
35
50
(1)
(1)
(1)
(1)
(1)
Unit
µA
µA
µA
11/35
V
V
V
V
V
V
V
V
V