LTC2851 LINER [Linear Technology], LTC2851 Datasheet - Page 15

• Manufacturer Part Number: LTC2851
• Description: 20Mbps RS485 Transceivers
• Manufacturer: LINER [Linear Technology]

packaGe DescripTion
Please refer to
http://www.linear.com/designtools/packaging/
3.60 ±0.05
TOP MARK
2.20 ±0.05
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
(NOTE 6)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
PIN 1
0.200 REF
NOTE:
1. DRAWING PROPOSED TO BE A VARIATION OF VERSION
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
ON THE TOP AND BOTTOM OF PACKAGE
(WGED) IN JEDEC PACKAGE OUTLINE M0-229
0.25 ±0.05
1.70 ±0.05
4.00 ±0.10
3.30 ±0.05
(2 SIDES)
2.50 REF
(Reference LTC DWG # 05-08-1695 Rev D)
12-Lead Plastic DFN (4mm × 3mm)
0.50 BSC
0.70 ±0.05
DE/UE Package
0.75 ±0.05
3.00 ±0.10
(2 SIDES)
PACKAGE OUTLINE
for the most recent package drawings.
0.00 – 0.05
R = 0.05
TYP
BOTTOM VIEW—EXPOSED PAD
0.25 ±0.05
1.70 ±0.10
6
7
R = 0.115
3.30 ±0.10
2.50 REF
TYP
LTC2859/LTC2861
0.50 BSC
12
1
0.40 ±0.10
PIN 1 NOTCH
R = 0.20 OR
0.35 × 45°
CHAMFER
(UE12/DE12) DFN 0806 REV D
15
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