Industry-Standard High-Speed CAN

Transceivers with ±80V Fault Protection

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13

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-

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 1.5k

Ω resistor.