cy8c9520a Cypress Semiconductor Corporation., cy8c9520a Datasheet - Page 22

• Manufacturer Part Number: cy8c9520a
• Description: 20-, 40-, And 60-bit Io Expander With Eeprom
• Manufacturer: Cypress Semiconductor Corporation.

Thermal Impedances
Table 28. Thermal Impedances per Package
a. T
Solder Reflow Peak Temperature
Table 29 lists the minimum solder reflow peak temperature to achieve good solderability.
Table 29. Solder Reflow Peak Temperature
Document Number: 38-12036 Rev. *B
a. Higher temperatures may be required based on the solder melting point. Typical temperatures for solder are 220+/-5
paste. Refer to the solder manufacturer specifications.
J
= T
A
+ POWER x θ
100 TQFP
Package
28 SSOP
48 SSOP
JA
100 TQFP
28 SSOP
48 SSOP
Package
Minimum Peak Temperature
240
220
220
o
o
o
C
C
C
a
Typical θ
CY8C9520A, CY8C9540A
101
69
48
Maximum Peak Temperature
o
o
o
C with Sn-Pb or 245+/-5
o
C/W
C/W
C/W
JA
a
260
260
260
o
o
o
C
C
C
CY8C9560A
o
C with Sn-Ag-Cu
Page 22 of 24
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