PM5381-BI PMC-Sierra, Inc., PM5381-BI Datasheet - Page 585

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PM5381-BI

Manufacturer Part Number
PM5381-BI
Description
ATM UNI, Single Channel ATM PHY Interface for 2488.32Mbps
Manufacturer
PMC-Sierra, Inc.
Datasheet

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The following tables show the thermal resistance vs. air flow if the S/UNI-2488 is not used with a heat
sink. In this application, one must be careful to keep the long-term junction temperature at or below
105°C.
Airflow
q
JEDEC
board
Junction-to-Top Thermal Resistance, q
Junction-to-Board Thermal Resistance, q
1.
2.
3.
4.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000489, Issue 4
JA
(°C/W)
The minimum ambient temperature requirement for Outside Plant Equipment meets the minimum ambient
temperature requirement for Industrial Equipment
Short-term is used as defined in Telcordia Technologies Generic Requirements GR-63-Core Core
q
q
JESD 51-8 and q
SEMI Standard G30-88
JA
JB
, the total junction to ambient thermal resistance, is measured according to JEDEC Standard JESD51 (2S2P)
, the junction-to-board thermal resistance, is obtained by simulating conditions described in JEDEC Standard
Table 47 Thermal Resistance vs. Air Flow
Table 48 Device Compact Model
Power depends upon the operating mode. To obtain power information, refer to ‘High’ power
values in Section 16 Power Information.
Notes
Natural
Convection
12.6
JT
, the junction-to-top thermal resistance, is obtained by simulating conditions described in
200 LFM
10.2
JT
JB
0.4°C/W
6.1°C/W
4
400 LFM
9.0
3
S/UNI-2488 Telecom Standard Product Datasheet
Top
Junction
Board
q
q
JT
JB
Compact
Device
Model
Released
585

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