89hpes48t12 Integrated Device Technology, 89hpes48t12 Datasheet - Page 18

• Manufacturer Part Number: 89hpes48t12
• Description: 48-lane, 12-port Pcie I/o Connectivity Switch
• Manufacturer: Integrated Device Technology

Thermal Considerations
Recommended Operating Temperature
Power Consumption
(and also listed below).
Table 13 (and also listed below).
that is relevant to the thermal performance of the PES48T12 switch.
IDT 89HPES48T12 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 PES48T12 (35mm
Number of active
8/8/8/8/8/8
Lanes per Port
θ
Symbol
JA(effective)
T
T
A(max)
J(max)
θ
θ
P
JB
JC
Watts
mA
Effective Thermal Resistance, Junction-to-Ambient
1.0V
Core Supply
Typ
2141
2.14
Thermal Resistance, Junction-to-Board
Thermal Resistance, Junction-to-Case
Power Dissipation of the Device
Table 16 Thermal Specifications for PES48T12, 35x35mm FCBGA1156 Package
Junction Temperature
Ambient Temperature
1.1V
Max
2635
2.89
Commercial
Parameter
Industrial
Grade
1.0V
PCIe Digital
Typ
2155
2.15
Table 14 PES48T12 Operating Temperatures
Supply
Table 15 PES48T12 Power Consumption
1.1V
Max
2657
2.92
18 of 47
1.0V
PCIe Analog
Typ
0.91
918
Supply
2
FCBGA1156 package). The data in Table 16 below contains information
Value
12.6
6.82
1.1V
125
Max
6.4
5.4
2.1
0.1
1127
70
1.24
1.5V
PCIe Termin-
Typ
1076
-40
ation Supply
1.6
0
°
Temperature
Units
°
C to +70
Watts
o
o
o
o
o
C to +85
C/W
C/W
C/W
C/W
C/W
o
o
C
C
1.575V
Max
1327
2.09
°
°
C Ambient
C Ambient
Maximum for commercial-rated products
3.3V
Typ
0.01
3.8
I/O Supply
Conditions
1 m/S air flow
2 m/S air flow
Zero air flow
Maximum
Maximum
3.6V
Max
0.01
3.8
Power
6.85W
April 16, 2008
Typ
Total
Power
9.16W
Max