Datasheet > ML145583

ML145583

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
LANSDALE		驱动器
页数	文件大小	规格书
7页	527K
描述
3.3 Volt Only Driver/Receiver with an Integrated Standby Mode RS 232/EIA-232-E and CCITT V.28

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ML145583 数据手册

ML145583

LANSDALE Semiconductor, Inc.

ESD PROTECTION

through the internal ESD protection diodes which are designed

to do just that. The key to protecting the IC is to shunt as much

of the energy to ground as possible before it enters the IC.

Figure 1 shows a technique which will clamp the ESD voltage

at approximately 15 V using the MMBZ15VDLT1. Any

residual voltage which appears on the supply pins is shunted to

ground through the capacitors C1and C2.

ESD protection on IC devices that have their pins accessible

to the outside world is essential. High static voltages applied to

the pins when someone touches them either directly or indi-

rectly can cause damage to gate oxides and transistor junctions

by coupling a portion of the energy from the I/O pin to the

power supply buses of the IC. This coupling will usually occur

C5+

C2+

GND

C5–

0.1

C2–

MMBZ15VDLT1 x 8

RIMON

C1+

C1–

STB

Rx1

DO1

Rx2

Rx3

Tx1

Rx4

Tx2

Rx5

Tx3

DO2

DO3

DI1

DO4

DI2

DO5

DI3

Figure 1. ESD Protection Scheme

Page 6 of 7

www.lansdale.com

Issue A

1...3 4 567

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