pca9546abs NXP Semiconductors, pca9546abs Datasheet - Page 22

• Manufacturer Part Number: pca9546abs
• Description: 4-channel I2c Switch With Reset
• Manufacturer: NXP Semiconductors

Philips Semiconductors
14. Abbreviations
PCA9546A_4
Product data sheet
[3]
[4]
[5]
[6]
[7]
[8]
[9]
Table 12.
Acronym
CDM
ESD
HBM
IC
I
LSB
MM
MSB
PCB
SMBus
2
C-bus
These transparent plastic packages are extremely sensitive to reflow soldering conditions and must on no
account be processed through more than one soldering cycle or subjected to infrared reflow soldering with
peak temperature exceeding 217 C
body peak temperature must be kept as low as possible.
These packages are not suitable for wave soldering. On versions with the heatsink on the bottom side, the
solder cannot penetrate between the printed-circuit board and the heatsink. On versions with the heatsink
on the top side, the solder might be deposited on the heatsink surface.
If wave soldering is considered, then the package must be placed at a 45 angle to the solder wave
direction. The package footprint must incorporate solder thieves downstream and at the side corners.
Wave soldering is suitable for LQFP, QFP and TQFP packages with a pitch (e) larger than 0.8 mm; it is
definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.
Wave soldering is suitable for SSOP, TSSOP, VSO and VSSOP packages with a pitch (e) equal to or larger
than 0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
Image sensor packages in principle should not be soldered. They are mounted in sockets or delivered
pre-mounted on flex foil. However, the image sensor package can be mounted by the client on a flex foil by
using a hot bar soldering process. The appropriate soldering profile can be provided on request.
Hot bar soldering or manual soldering is suitable for PMFP packages.
Abbreviations
Description
Charged Device Model
ElectroStatic Discharge
Human Body Model
Integrated Circuit
Inter-Integrated Circuit bus
Least Significant Bit
Machine Model
Most Significant Bit
Printed-Circuit Board
System Management Bus
Rev. 04 — 29 August 2006
10 C measured in the atmosphere of the reflow oven. The package
4-channel I
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
2
C-bus switch with reset
PCA9546A
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