Product Brief

WM2002

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Product Brief, September 2013, Rev 4.1

5

PIN

NAME

TYPE

DESCRIPTION

42

IREFR

Analogue

Input/Output

Current reference resistor connection

43

DBVDD

Supply

Digital buffer supply

44

DNC

n/a

Do Not Connect

45

DGND

Supply

Digital supplies ground

46

DGND

Supply

Digital supplies ground

47

DGND

Supply

Digital supplies ground

48

DGND

Supply

Digital supplies ground

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously

operating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are

given under Electrical Characteristics at the test conditions specified.

ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically

susceptible to damage from excessive static voltages. Proper ESD precautions must be taken

during handling and storage of this device.

Wolfson tests its package types according to IPC/JEDEC J-STD-020 for Moisture Sensitivity to determine acceptable

storage conditions prior to surface mount assembly. These levels are:

MSL1 = unlimited floor life at <30

C / 85% Relative Humidity. Not normally stored in moisture barrier bag.

MSL2 = out of bag storage for 1 year at <30

C / 60% Relative Humidity. Supplied in moisture barrier bag.

MSL3 = out of bag storage for 168 hours at <30

C / 60% Relative Humidity. Supplied in moisture barrier bag.

The Moisture Sensitivity Level for each package type is specified in “Ordering Information”.

CONDITION

MIN

MAX

BATTVDD

-0.3V

+1.8V

SYSVDD, MICVDD, LDO1VDD, DBVDD

-0.3V

+3.6V

PROGVDD

-0.3V

+6.75V

Voltage range digital inputs

DGND - 0.3V

DBVDD + 0.3V

Voltage range analogue inputs

AGND - 0.3V

LDO3VOUT + 0.25V

-40ºC

+85ºC

Storage temperature after soldering

-65ºC

+150ºC