MAX13050/MAX13052/MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
13
Maxim Integrated
tance. Place the resistor at RS as close as possible to
the MAX13052 to minimize any possible noise coupling
at the input.
Power Supply and Bypassing
The MAX13050/MAX13052/MAX13053/MAX13054
require no special layout considerations beyond com-
mon practices. Bypass V
CC and
V
CC
2 to GND with a
0.1µF ceramic capacitor mounted close to the IC with
short lead lengths and wide trace widths.
ESD Protection
ESD-protection structures are incorporated on CANH
and CANL to protect against ESD encountered during
handling and assembly. CANH and CANL inputs have
extra protection to protect against static electricity found
in normal operation. Maxim’s engineers have developed
state-of-the-art structures to protect these pins against
±8kV ESD Contact Discharge without damage. After an
ESD event, the MAX13050/MAX13052/MAX13053/
MAX13054 continue working without latchup. ESD pro-
tection can be tested in several ways. The CANH and
CANL inputs are characterized for protection to ±8kV
using the IEC 61000-4-2 Contact Discharge Method per
IBEE Test facility.
ESD Test Conditions
ESD performance depends on a number of conditions.
Contact Maxim for a reliability report that documents
test setup, methodology, and results.
Human Body Model
Figure 5 shows the IEC 61000-4-2 Contact Discharge
Model, and Figure 6 shows the current waveform it
generates when discharged into a low impedance. This
model consists of a 100pF capacitor charged to the
ESD voltage of interest, which is then discharged into
the device through a 1.5kΩ resistor.
