MAX3246ECBX-T(2010) Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

MAX3246ECBX-T
(Rev.:2010)

±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V, Up to 1Mbps, True RS-232 Transceivers

Maxim Integrated 

MAX3222E/MAX3232E/MAX3237E/

MAX3241E/MAX3246E

±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V,

Up to 1Mbps, True RS-232 Transceivers

Table 1. MAX3222E/MAX3237E/MAX3241E/

MAX3246E Shutdown and Enable Control

Truth Table

SHDN EN

T_OUT

R_OUT

R_OUTB

(MAX3237E/

MAX3241E)

0

0

High

impedance

Active

Active

0

1

High

impedance

High

impedance

Active

1

0

Active

Active

Active

1

1

Active

High

impedance

Active

ESD protection can be tested in various ways; the

transmitter outputs and receiver inputs for the

MAX3222E/MAX3232E/MAX3241E/MAX3246E are

characterized for protection to the following limits:

• ±15kV using the Human Body Model

• ±8kV using the Contact Discharge method specified

in IEC 1000-4-2

• ±9kV (MAX3246E only) using the Contact Discharge

method specified in IEC 1000-4-2

• ±15kV using the Air-Gap Discharge method speci-

fied in IEC 1000-4-2

RC

1MΩ

CHARGE-CURRENT-

LIMIT RESISTOR

RD

1500Ω

DISCHARGE

RESISTANCE

HIGH-

VOLTAGE

DC

SOURCE

Cs

100pF

STORAGE

CAPACITOR

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 4a. Human Body ESD Test Model

Figure 4b. Human Body Model Current Waveform

RC

50MΩ to 100MΩ

RD

330Ω

CHARGE-CURRENT-

LIMIT RESISTOR

DISCHARGE

RESISTANCE

HIGH-

VOLTAGE

DC

SOURCE

Cs

150pF

STORAGE

CAPACITOR

Figure 5a. IEC 1000-4-2 ESD Test Model

Maxim Integrated

DEVICE-

UNDER-

TEST

I

100%

90%

10%

tr = 0.7ns to 1ns

t

30ns

60ns

Figure 5b. IEC 1000-4-2 ESD Generator Current Waveform

11

Share Link: