DS3251+ Maxim Integrated Products, DS3251+ Datasheet - Page 71

• Manufacturer Part Number: DS3251+
• Description: IC LIU DS3/E3/STS-1 144-CSBGA
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS3251+

• Number Of Drivers/receivers: 1/1
• Protocol: DS3
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 144-CSBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

20.
Table 20-A. Thermal Properties, Natural Convection
Note 1: The package is mounted on a four - layer JEDEC standard test board with no airflow and dissipating maximum power.
Note 2: Theta - JA ( θ
Table 20-B. Theta-JA (θ
21.
Maxim/Dallas Semiconductor cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim/Dallas Semiconductor product.
No circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications without notice at any time.
M a x i m I n t e g r a t e d P r o d u c t s , 1 2 0 S a n G a b r i e l D r i v e , S u n n y v a l e , C A 9 4 0 8 6 4 0 8 - 7 3 7 - 7 6 0 0
Ambient Temperature (Note 1)
Junction Temperature
Theta-JA (θ
Psi-JB
Psi-JT
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REVISION
FORCED AIR (METERS PER
031805
061705
030106
with no airflow and dissipating maximum power.
THERMAL INFORMATION
REVISION HISTORY
JA
SECOND)
), Still Air (Note 2)
JA
) is the junction to ambient thermal resistance, when the package is mounted on a four - layer JEDEC standard test board
2.5
PARAMETER
New Product Release (DS3254)
New Product Release (DS3251/DS3252/DS3253)
Added requirement that ALE pin must be high when using the SPI interface: Figure 4-1 (at the
bottom), the second paragraph of Section 5, Table 6-F, the first paragraph of Section 15.2,
Table 18-A, Figure 18-3, Figure 18-6, Figure 18-9, and Figure 18-12.
0
1
JA
) vs. Airflow
© 2006 Maxim Integrated Products • Printed USA
THETA-JA (θ
22.4°C/W
19.0°C/W
17.2°C/W
71 of 71
-40°C
-40°C
MIN
DESCRIPTION
JA
)
22.4°C/W
9.2°C/W
1.6°C/W
TYP
—
—
DS3251/DS3252/DS3253/DS3254
+125°C
+85°C
MAX