Datasheet > MAX231

MAX231

更新时间： 2023-12-20 18:44:47

品牌	Logo	应用领域
亚德诺 - ADI		驱动驱动器
页数	文件大小	规格书
39页	2524K
描述
+5V供电、多通道RS-232驱动器/接收器

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数据手册

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MAX231 数据手册

MAX220–MAX249

+5V-Powered, Multichannel

RS-232 Drivers/Receivers

Electrical Characteristics—MAX220/222/232A/233A/242/243 (continued)

= +5V ±10%, C1–C4 = 0.1μF‚ MAX220, C1 = 0.047μF, C2–C4 = 0.33μF, T = T

to T

‚ unless otherwise noted.) (Note 3)

MIN

MAX

PARAMETER

CONDITIONS

MIN

TYP

0.5

0.6

MAX UNITS

MAX222/MAX232A/MAX233/

MAX242/MAX243

, Figure 2

PHLR

MAX220

Receiver Propagation Delay RS-232 to TLL

(Normal Operation)

µs

MAX222/MAX232A/MAX233/

MAX242/MAX243

PLHR

MAX220

0.8

0.5

, Figure 2

MAX242

µs

Receiver Propagation Delay RS-232 to TLL

(Shutdown)

PHLS

MAX242

2.5

Receiver-Output Enable Time

Receiver-Output Disable Time

MAX242, Figure 3

125

160

500

MAX222/MAX242, 0.1µF caps

(includes charge-pump start-

up), Figure 4

Transmitter-Output Enable Time

(SHDN Goes High)

250

600

µs

Transmitter-Output Disable Time

(SHDN Goes Low)

MAX222/MAX242,

0.1µF caps, Figure 4

MAX222/MAX232A/MAX233/

MAX242/MAX243

300

2000

100

Transmitter + to - Propagation Delay

Diﬀerence (Normal Operation)

- t

PHLT PLHT

MAX220

MAX222/MAX232A/MAX233/

MAX242/MAX243

Receiver + to - Propagation Delay

Diﬀerence (Normal Operation)

- t

PHLR PLHR

MAX220

225

Note 3: All units are production tested at hot. Specifications over temperature are guaranteed by design.

Note 4: MAX243 R2OUT is guaranteed to be low when R2IN ≥ 0V or is unconnected.

Typical Operating Characteristics

MAX220/MAX222/MAX232A/MAX233A/MAX242/MAX243

AVAILABLE OUTPUT CURRENT

MAX222/MAX242

vs. DATA RATE

ON-TIME EXITING SHUTDOWN

OUTPUT VOLTAGE vs. LOAD CURRENT

+10V

1µF

V+

OUTPUT LOAD CURRENT

FLOWS FROM V+ TO V-

1µF CAPS

EITHER V+ OR V- LOADED

V+

0.1µF CAPS

ALL CAPS

1µF

+5V

0.1µF

= +5V

NO LOAD ON

TRANSMITTER OUTPUTS

(EXCEPT MAX220, MAX233A)

SHDN

= +5.25V

= +4.75V

ALL CAPS

0.1µF

V- LOADED, NO LOAD ON V+

0.1µF

-2

1µF CAPS

1µF

-4

-6

0.1µF CAPS

V-

-8

V-

V+ LOADED, NO LOAD ON V-

10 15 20 25

LOAD CURRENT (mA)

-10

-10V

500ms/div

DATA RATE (kb/s)

Maxim Integrated

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www.maximintegrated.com

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