MAX9546 データシートの表示（PDF） - Maxim Integrated

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MAX9546

Differential Video Interface Chipset

Maxim Integrated 

MAX9546/MAX9547

Differential Video Interface Chipset

±15kV ESD Protection

As with all Maxim devices, ESD-protection structures are

incorporated on all pins to protect against electrostatic

discharges encountered during handling and assem-

bly. The driver outputs and receiver inputs have extra

protection against static electricity. Maxim’s engineers

developed state-of-the-art structures to protect these pins

against ESD of ±15kV without damage. The ESD struc-

tures withstand high ESD in all states: normal operation

and powered down. After an ESD event, the MAX9546/

MAX9547 keep working without latchup. ESD protection

can be tested in various ways; the driver outputs and

receiver inputs of this product family are characterized for

protection to ±15kV using the Human Body Model. Other

ESD test methodologies include IEC 1000-4-2 Contact

Discharge and IEC 1000-4-2 Air-Gap Discharge (formerly

IEC 801-2).

ESD Test Conditions

ESD performance depends on a variety of conditions.

Contact Maxim for a reliability report that documents test

setup, test methodology, and test results.

Human Body Model

Figure 5 shows the Human Body Model, and Figure

6 shows the current waveform it generates when dis-

charged into a low impedance. This model consists of a

100pF capacitor charged to the ESD voltage of interest,

which is then discharged into the test device through a

1.5kΩ resistor.

RC

1MΩ

RD

1.5kΩ

CHARGE-CURRENT-

LIMIT RESISTOR

DISCHARGE

RESISTANCE

HIGH-

VOLTAGE

DC

SOURCE

Cs

100pF

STORAGE

CAPACITOR

Figure 5. Human Body ESD Test Model

DEVICE

UNDER

TEST

IP 100%

90%

AMPERES

36.8%

10%

0

0 tRL

Ir

PEAK-TO-PEAK RINGING

(NOT DRAWN TO SCALE)

TIME

tDL

CURRENT WAVEFORM

Figure 6. Human Body Current Waveform

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