89hpes32t8 Integrated Device Technology, 89hpes32t8 Datasheet - Page 17

• Manufacturer Part Number: 89hpes32t8
• Description: 32-lane, 8-port Pcie I/o Expansion Switch
• Manufacturer: Integrated Device Technology

Recommended Operating Temperature
Power Consumption
(and also listed below).
Table 13 (and also listed below).
Thermal Considerations
relevant to the thermal performance of the PES32T8 switch.
IDT 89PES32T8 Data Sheet
Typical power is measured under the following conditions: 25°C Ambient, 35% total link usage on all ports, typical voltages defined in Table 13
Maximum power is measured under the following conditions: 70°C Ambient, 85% total link usage on all ports, maximum voltages defined in
This section describes thermal considerations for the PES32T8 (31mm
Number of active
8/8/8/4/4 or
Lanes per Port
8/8/4/4/4
8/8/8/8
Note: Parameter
vary with the number of board layers, size of the board, and airflow,
given above are based on a 10-layer, standard height, full length (4.3”x12.2”) PCIe add-in card.
θ
Symbol
JA(effective)
T
T
A(max)
J(max)
θ
θ
P
JC
JB
Watts
Watts
mA
mA
Effective Thermal Resistance, Junction-to-Ambient
θ
JA(eff)
1.0V
Core Supply
Typ
0.89
888
800
0.8
Thermal Resistance, Junction-to-Board
Thermal Resistance, Junction-to-Case
Power Dissipation of the Device
is not the absolute thermal resistance for the package as defined by JEDEC (JESD-51). Because resistance can
Table 16 Thermal Specifications for PES32T8, 31x31 mm BXG500 Package
Junction Temperature
Ambient Temperature
1.1V
Max
1014
1.15
1.07
973
Commercial
Parameter
Grade
1.0V
1499
1284
PCIe Digital
Typ
1.28
1.5
Table 14 PES32T8 Operating Temperatures
Supply
Table 15 PES32T8 Power Consumption
1.1V
Max
1660
1471
1.83
1.61
17 of 37
1.0V
PCIe Analog
Typ
0.61
0.56
611
556
Supply
2
BXG500 package). The data in Table 16 below contains information that is
Value
θ
JA(eff)
1.1V
125
Max
9.3
7.6
6.8
0.7
5.0
70
0.69
0.65
627
590
6
is the effective thermal resistance. The values for effective
1.5V
PCIe Termin-
Typ
1.14
0.92
ation Supply
763
613
0
°
Temperature
Units
C to +70
Watts
o
o
o
o
o
C/W
C/W
C/W
C/W
C/W
o
o
C
C
1.575V
Max
1.31
°
832
697
1.1
C Ambient
Maximum for commercial-rated products
3.3V
0.004
0.003
Typ
I/O Supply
1
1
Conditions
1 m/S air flow
2 m/S air flow
Zero air flow
Maximum
Maximum
3.6V
0.004
0.003
Max
1
1
March 25, 2008
Power
3.56W
4.1W
Typ
Total
Power
Max
5.0W
4.4W
θ
JA