IDT89HPES24NT3ZBBX8 IDT, Integrated Device Technology Inc, IDT89HPES24NT3ZBBX8 Datasheet - Page 14

• Manufacturer Part Number: IDT89HPES24NT3ZBBX8
• Description: IC PCI SW 24LANE 3PORT 420-SBGA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT89HPES24NT3ZBBX8

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 89HPES24NT3ZBBX8

Thermal Considerations
Recommended Operating Temperature
Power Consumption
Table 14.
is relevant to the thermal performance of the PES24NT3 switch.
IDT 89HPES24NT3 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 14.
Maximum power is measured under the following conditions: 70°C Ambient, 85% total link usage on all ports, maximum voltages defined in
All power measurements assume that the part is mounted on a 10 layer printed circuit board with 0 LFM airflow.
This section describes thermal considerations for the PES24NT3 (27mm
Port-A/Port-B/Port-C
Connected Lanes:
Number of
Note: The parameter
can vary with the number of board layers, size of the board, and airflow,
θ
θ
Symbol
JA
JA(effective)
T
8/4/4
8/8/8
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
JC
JB
Effective Thermal Resistance, Junction-to-Ambient
(1.0V supply)
Core (Watts)
Typ
0.59
0.68
Thermal Resistance, Junction-to-Board
Thermal Resistance, Junction-to-Case
θ
JA(eff)
Power Dissipation of the Device
Table 15 Thermal Specifications for PES24NT3, 27x27mm BXG420 Package
is not the absolute thermal resistance for the package as defined by JEDEC (JESD-51). Because resistance
Junction Temperature
Ambient Temperature
Max
0.84
0.95
Commercial
Parameter
Grade
(1.0V supply)
PCIe Digital
Typ
0.75
0.98
Table 13 PES24NT3 Operating Temperatures
(Watts)
Table 14 PES24NT3 Power Consumption
Max
1.08
1.43
14 of 31
(1.0V supply)
PCIe Analog
Typ
0.33
0.38
(Watts)
2
BXG420 package). The data in Table 15 below contains information that
Value
10.6
3.88
125
Max
8.5
7.6
6.8
0.7
70
0.42
0.48
θ
JA(eff)
is the effective thermal resistance. The values for effective
(1.5V supply)
PCIe Termin-
ation (Watts)
Typ
0.62
0.88
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
Max
0.78
1.01
°
C Ambient
Maximum for commercial-rated products
(3.3V supply)
0.002
0.002
Typ
I/O (Watts)
Conditions
1 m/S air flow
2 m/S air flow
Zero air flow
Maximum
Maximum
Max
0.01
0.01
January 5, 2009
Total (Watts)
Typ
2.92
2.3
Max
3.12
3.88