89HPES8T5ZHBCG IDT, 89HPES8T5ZHBCG Datasheet - Page 15

• Manufacturer Part Number: 89HPES8T5ZHBCG
• Description: Interface - I/O Expanders
• Manufacturer: IDT

Specifications of 89HPES8T5ZHBCG

• Product Category: Interface - I/O Expanders
• Rohs: yes
• Part # Aliases: IDT89HPES8T5ZHBCG

Thermal Considerations
Recommended Operating Temperature
Power Consumption
(and also listed below).
Table 13 (and also listed below).
relevant to the thermal performance of the PES8T5 switch.
IDT 89HPES8T5 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 PES8T5 (19mm
Number of active
Lanes per Port
4/1/1/1/1
1/1/1/1/1
Note: The parameter
can vary with the number of board layers, size of the board, and airflow,
θ
θ
JA
Symbol
JA(effective)
T
T
given above are based on a 10-layer, standard height, full length (4.3”x12.2”) PCIe add-in card.
A(max)
J(max)
θ
θ
P
JB
JC
Watts
Watts
mA
mA
Effective Thermal Resistance, Junction-to-Ambient
1.0V
0.641
0.632
Core Supply
Typ
641
632
Thermal Resistance, Junction-to-Board
Thermal Resistance, Junction-to-Case
θ
JA(eff)
Power Dissipation of the Device
Table 16 Thermal Specifications for PES8T5, 19x19 mm BCG324 Package
Junction Temperature
is not the absolute thermal resistance for the package as defined by JEDEC (JESD-51). Because resistance
Ambient Temperature
1.1V
0.871
0.818
Max
792
744
Commercial
Parameter
Grade
1.0V
0.637
0.574
PCIe Digital
Typ
637
574
Supply
Table 14 PES8T5 Operating Temperatures
Table 15 PES8T5 Power Consumption
1.1V
Max
0.805
0.735
732
668
15 of 31
1.0V
PCIe Analog
0.331
0.325
Typ
331
325
2
Supply
BCG324 package). The data in Table 16 below contains information that is
Value
21.8
15.1
13.9
11.4
1.1V
125
Max
0.387
0.381
5.1
2.4
70
352
346
θ
JA(eff)
is the effective thermal resistance. The values for effective
1.5V
0.302
0.206
PCIe Termin-
Typ
ation Supply
201
137
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
0.354
0.244
°
225
155
C Ambient
Maximum for commercial-rated products
3.3V
0.003
0.003
Typ
I/O Supply
1
1
Conditions
1 m/S air flow
2 m/S air flow
Zero air flow
Maximum
Maximum
0.0035
3.6V
Max
0.004
1
1
March 27, 2008
Power
1.75W
1.9W
Typ
Total
Power
Max
2.4W
2.2W