Datasheet

LAN8720A/LAN8720AI
DS00002165B-page 52  2016 Microchip Technology Inc.
5.0 OPERATIONAL CHARACTERISTICS
5.1 Absolute Maximum Ratings*
Supply Voltage (VDDIO, VDD1A, VDD2A) (Note 5-1) ...............................................................................-0.5V to +3.6V
Digital Core Supply Voltage (VDDCR) (Note 5-1) ......................................................................................-0.5V to +1.5V
Ethernet Magnetics Supply Voltage ................................................................................................
...........-0.5V to +3.6V
Positive voltage on signal pins, with respect to ground (Note 5-2)..............................................................................+6V
Negative voltage on signal pins, with respect to ground (Note 5-3)......................................................................... -0.5V
Positive voltage on XTAL1/CLKIN, with respect to ground ...........................................................................
...........+3.6V
Positive voltage on XTAL2, with respect to ground.................................................................................
.................+2.5V
Ambient Operating Temperature in Still Air (T
A
)............................................................................................... Note 5-40
Storage Temperature..............................................................................................................
............... .-55
o
C to +150
o
C
Junction to Ambient (

JA
)................................................................................................................................. .59.8
o
C/W
Junction to Case (

JC
)...................................................................................................................................... .12.6
o
C/W
Lead Temperature Range ...........................................................................................Refer to JEDEC Sp
ec. J-STD-020
HBM ESD Performance per JEDEC JESD22-A114.........................................................................................
...Class 3A
IEC61000-4-2 Contact Discharg
e ESD Performance (Note 5-5) ............................................................................+/-8kV
IEC61000-4-2 Air-Gap Discharge ESD Performance (Note 5-5) ..........................................................................+/-15kV
Latch-up Performance per EIA/JESD 78.............................................................................................
............. .+/-150mA
Note 5-1 When
powering this device from laboratory or system power supplies, it is important that the absolute
maximum ratings not be exceeded or device failure can result. Some power supplies exhibit voltage
spikes on their outputs when AC power is switched on or off. In addition, voltage transients on the
AC power line may appear on the DC output. If this possibility exists, it is suggested that a clamp
circuit be used.
Note 5-2 This rat
ing does not apply to the following pins: XTAL1/CLKIN, XTAL2, RBIAS.
Note 5-3 This rat
ing does not apply to the following pins: RBIAS.
Note 5-4 0
o
C to +85
o
C for extended commercial version, -40
o
C to +85
o
C for industrial version.
Note 5-5 Perf
ormed by independent 3rd party test facility.
*Stresses exceeding those listed in this section could cause permanent damage to the device. This is a stress rating
onl
y. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Functional
operation of the device at any condition exceeding those indicated in Section 5.2, "Operating Conditions**", Section 5.1,
"Absolute Maximum Ratings*", or any other applicable section of this specification is not implied. Note, device signals
are
NOT 5 volt tolerant unless specified otherwise.
5.2 Operating Conditions**
Supply Voltage (VDDIO)..........................................................................................................................+1.62V to +3.6V
Analog Port Supply Voltage (VDD1A, VDD2A) .......................................................................................
..+3.0V to +3.6V
Digital Core Supply Voltage (VDDCR) .............................................................................................
..... +1.08V to +1.32V
Ethernet Magnetics Supply Voltage ................................................................................................
........+2.25V to +3.6V
Ambient Operating Temperature in Still Air (T
A
)................................................................................................. Note 5-4
**Proper operation of the device is guaranteed only within the ra
nges specified in this section. After the device has com-
pleted power-up, VDDIO and the magnetics power supply must maintain their voltage level with +/-10%. Varying the
volt
age greater than +/-10% after the device has completed power-up can cause errors in device operation.
Note: Do not
drive input signals without power supplied to the device.