Rainbow-electronics MAX4951 Manual de usuario descargar pdf (Pagina 8)

MAX4951

Human Body Model

The MAX4951 is characterized for ±5.5kV ESD protec-

tion using the Human Body Model (MIL-STD-883,

Method 3015). Figure 1 shows the Human Body Model

and Figure 2 shows the current waveform it generates

when discharged into a low impedance. This model

consists of a 100pF capacitor charged to the ESD volt-

age of interest that is then discharged into the device

through a 1.5kΩ resistor.

Power-Supply Sequencing

Caution: Do not exceed the absolute maximum rat-

ings because stresses beyond the listed ratings

may cause permanent damage to the device.

Proper power-supply sequencing is recommended for

all devices. Always apply V

before applying signals,

especially if the signal is not current limited.

SATA I/SATA II Bidirectional Re-Driver

8 _______________________________________________________________________________________

Figure 2. Human Body Current Waveform

100%

90%

36.8%

TIME

CURRENT WAVEFORM

PEAK-TO-PEAK RINGING

(NOT DRAWN TO SCALE)

10%

AMPS

CHARGE-CURRENT

LIMIT RESISTOR

DISCHARGE

RESISTANCE

STORAGE

CAPACITOR

100pF

1MΩ

1500Ω

HIGH-

VOLTAGE

SOURCE

DEVICE

UNDER

TEST

Figure 1. Human Body ESD Test Model

1 2 3 4 5 6 7 8 9

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Rainbow-electronics MAX4951 Manual de usuario Pagina 8

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