PM8800 STMicroelectronics, PM8800 Datasheet - Page 13

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

PM8800A
Note:
Table 6.
(
Thermal shutdown
VCC regulation
V
IN
VCC
Symbol
= 48 V, VCC = open, T
VCC
ICC
UVLO
2
3
1
Electrical characteristics - SMPS section
These values applies over the full operating temperarure range.
Device thermal limitations could limit useful operating range.
The V
additional external V
Peak sink current
Shutdown temp.
Th. shutdown Hyst.
Internal default
Current capability
Internal default
UVLO, release
Internal default;
UVLO, lock-out
V
V
dropout
CC
CC
supply current
regulator
CC
Parameter
regulator is intended for internal use only as bias supply of PM8800A; any
A
= 25 °C unless otherwise specified).
CC
current has to be limited within the specified max current limit.
C
Guaranteed by design
1
Guaranteed by design
2
VIN = 48 V; VCC = open
VIN = 48 V; GD = open
V
V
V
ICC = 5 mA; GD = open
st
nd
CC
CC
CC
LOAD
level; Inrush phase only;
Level; guaranteed by design
rising; wrt VCC
falling
= 10 V
= 3.3 nF;
Test conditions
-400
6.4
Min
8
(1)
(1)
(1)
Electrical specifications
1200
Typ
130
160
8.3
6.7
30
4
2
8.6
7.1
10
Max
-50
(1)
(1)
(1)
Unit
mA
mA
mV
mA
°C
°C
°C
13/35
V
V
V