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Tssop thermal characteristics, Cs8416, 28l tssop (4.4 mm body) package drawing – Cirrus Logic CS8416 User Manual

Page 57

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DS578F3

57

CS8416

Notes:

1. “D” and “E1” are reference datums and do not include mold flash or protrusions, but do include mold

mismatch and are measured at the parting line, mold flash or protrusions shall not exceed 0.20 mm per
side.

2. Dimension “b” does not include dambar protrusion/intrusion. Allowable dambar protrusion shall be

0.13 mm total in excess of “b” dimension at maximum material condition. Dambar intrusion shall not re-
duce dimension “b” by more than 0.07 mm at least material condition.

3. These dimensions apply to the flat section of the lead between 0.10 and 0.25 mm from lead tips.

TSSOP THERMAL CHARACTERISTICS

INCHES

MILLIMETERS

NOTE

DIM

MIN

NOM

MAX

MIN

NOM

MAX

A

--

--

0.47

--

--

1.20

A1

0.002

0.004

0.006

0.05

0.10

0.15

A2

0.03150

0.035

0.04

0.80

0.90

1.00

b

0.00748

0.0096

0.012

0.19

0.245

0.30

2

,

3

D

0.378 BSC

0.382 BSC

0.386 BSC

9.60 BSC

9.70 BSC

9.80 BSC

1

E

0.248

0.2519

0.256

6.30

6.40

6.50

E1

0.169

0.1732

0.177

4.30

4.40

4.50

1

e

--

0.026 BSC

--

--

0.65 BSC

--

L

0.020

0.024

0.029

0.50

0.60

0.75

µ

JEDEC #: MO-153

Controlling Dimension is Millimeters.

Parameter

Symbol

Min

Typ

Max

Units

Junction to Ambient Thermal Impedance

4 Layer Board

θ

JA

-

40

-

°C/Watt

28L TSSOP (4.4 mm BODY) PACKAGE DRAWING

E

N

1 2 3

e

b

2

A1

A2

A

D

SEATING

PLANE

E1

1

L

SIDE VIEW

END VIEW

TOP VIEW