Cirrus Logic CS43L21 - Manual (Page 63)

DS723F1 63
CS43L21
13.PACKAGE DIMENSIONS
1. Dimensioning and tolerance per ASME Y 14.5M-1995.
2. Dimensioning lead width applies to the plated terminal and is measured between 0.20 mm and 0.25 mm
from the terminal tip.
THERMAL CHARACTERISTICS
INCHES MILLIMETERS NOTE
DIM MIN NOM MAX MIN NOM MAX
A -- -- 0.0394 -- -- 1.00 1
A1 0.0000 -- 0.0020 0.00 -- 0.05 1
b 0.0071 0.0091 0.0110 0.18 0.23 0.28 1 , 2
D 0.1969 BSC 5.00 BSC 1
D2 0.1280 0.1299 0.1319 3.25 3.30 3.35 1
E 0.1969 BSC 5.00 BSC 1
E2 0.1280 0.1299 0.1319 3.25 3.30 3.35 1
e 0.0197 BSC 0.50 BSC 1
L 0.0118 0.0157 0.0197 0.30 0.40 0.50 1
JEDEC #: MO-220
Controlling Dimension is Millimeters.
Parameter Symbol Min Typ Max Units
Junction to Ambient Thermal Impedance 2 Layer Board
4 Layer Board 
JA
-
- 52
38 -
-
°C/Watt
Side View
A1
Bottom View Top View
A
Pin #1 Corner
D
E
D2 L
b e Pin #1 Corner
E2
32L QFN (5 X 5 mm BODY) PACKAGE DRAWING