MAX4838EXT-T Ver la hoja de datos (PDF) - Maxim Integrated

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componentes Descripción

Fabricante

MAX4838EXT-T

Overvoltage Protection Controllers with Status FLAG

Maxim Integrated 

Overvoltage Protection Controllers with

Status FLAG

Table 1. MOSFET Suggestions

PART

Si9936DY

Si5904DC

Si1426DH

FDC6305N

FDS8926A

FDG315N

IRF7752

IRF7303

IRF7607

CONFIGURATION/

PACKAGE

Dual/SO8

Dual/1206-8

Single/SC70-6

Dual/SSOT-6

Dual/SO8

Single/SC70-6

Dual/TSSOP-8

Dual/SO8

Single/Micro-8

VDS MAX (V)

30

30

30

20

30

30

30

30

20

RON AT 4.5V

(mΩ)

80

143

115

80

20

160

36

80

30

MANUFACTURER

Vishay Siliconix

www.vishay.com

402-563-6866

Fairchild Semiconductor

www.fairchildsemi.com

207-775-8100

International Rectifier

www.irf.com

310-322-3331

Human Body Model

Figure 8 shows the Human Body Model and Figure 9

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 inter-

est, which is then discharged into the device through a

1.5kΩ resistor.

IEC 1000-4-2

Since January 1996, all equipment manufactured and/or

sold in the European community has been required to

meet the stringent IEC 1000-4-2 specification. The IEC

1000-4-2 standard covers ESD testing and performance

of finished equipment; it does not specifically refer to

integrated circuits. The MAX4838–MAX4841 help users

design equipment that meets Level 3 of IEC 1000-4-2,

without additional ESD-protection components.

The main difference between tests done using the

Human Body Model and IEC 1000-4-2 is higher peak

current in IEC 1000-4-2. Because series resistance is

lower in the IEC 1000-4-2 ESD test model (Figure 10),

the ESD-withstand voltage measured to this standard is

generally lower than that measured using the Human

Body Model. Figure 11 shows the current waveform for

the ±8kV IEC 1000-4-2 Level 4 ESD Contact Discharge

test. The Air-Gap test involves approaching the device

with a charger probe. The Contact Discharge method

connects the probe to the device before the probe is

energized.

RC

1MΩ

RD

1.5kΩ

CHARGE-CURRENT-

LIMIT RESISTOR

DISCHARGE

RESISTANCE

HIGH-

VOLTAGE

DC

SOURCE

Cs

100pF

STORAGE

CAPACITOR

Figure 8. 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 9. Human Body Model Current Waveform

8 _______________________________________________________________________________________

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