DA9220 datasheet(59/62 Pages) DIALOG

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DA9220

High-Performance Dual-Channel DC-DC Converter

Datasheet

Revision 2.1

17-Sep-2020

CFR0011-120-00

59 of 62

6.2

Moisture Sensitivity Level

The moisture sensitivity level (MSL) is an indicator for the maximum allowable time period (floor

lifetime) in which a moisture sensitive plastic device, once removed from the dry bag, can be

exposed to an environment with a specified maximum temperature and a maximum relative humidity

before the solder reflow process. The MSL classification is defined in Table 61.

For detailed information on MSL levels refer to the IPC/JEDEC standard J-STD-020, which can be

downloaded from http://www.jedec.org.

The DA9220 package is qualified for MSL1.

Table 61: MSL Classification

MSL Level

Floor Lifetime

Conditions

MSL 1

Unlimited

≤30 °C / 85 % RH

6.3

WLCSP Handling

Manual handling of WLCSP packages should be reduced to the absolute minimum. In cases where it

is still necessary, a vacuum pick-up tool should be used. In extreme cases plastic tweezers could be

used, but metal tweezers are not acceptable, since contact may easily damage the silicon chip.

Removal of a WLCSP package will cause damage to the solder balls. Therefore a removed sample

cannot be reused.

WLCSP packages are sensitive to visible and infrared light. Precautions should be taken to properly

shield the chip in the final product.

6.4

Soldering Information

Refer to the IPC/JEDEC standard J-STD-020 for relevant soldering information. This document can

be downloaded from http://www.jedec.org.

DA9220 Datasheet(PDF) 59 Page - Dialog Semiconductor