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WM8321 数据表(PDF) 14 Page - Wolfson Microelectronics plc |
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WM8321 数据表(HTML) 14 Page - Wolfson Microelectronics plc |
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14 / 253 page  WM8321 Production Data w PD, February 2012, Rev 4.0 14 5 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-020B 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 WM8321 has been classified as MSL3. CONDITION MIN MAX OTP Programming Supply (PROGVDD) -0.3V 7.0V System supply (PVDD1, PVDD2, PVDD3) -0.3V 7.0V Input voltage for LDO regulators -0.3V 7.0V Input voltage for DC-DC converters -0.3V 7.0V Digital buffer supply (DBVDD1, DBVDD2) -0.3V 4.5V Voltage range for digital inputs -0.3V DBVDD + 0.3V Operating Temperature Range, TA -40 C +85 C Junction Temperature, TJ -40 C +125 C Thermal Impedance Junction to Ambient, θJA 24 C/W Storage temperature prior to soldering 30 oC max / 60% RH max Storage temperature after soldering -65 C +150 C Soldering temperature (10 seconds) +260 C Note: These ratings assume that all ground pins are at 0V. |
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