Rainbow-electronics MAX3430 Manual do Utilizador descarregar pdf (Página 3)

MAX3430

±80V Fault-Protected, Fail-Safe,

1/4-Unit Load, +3.3V RS-485 Transceiver

_______________________________________________________________________________________ 3

DC ELECTRICAL CHARACTERISTICS (continued)

= +3.3V ±10%, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V

= +3.3V and T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RECEIVER LOGIC

RO Output High Voltage V

= -1.6mA

0.6

RO Output Low Voltage V

= 1mA 0.4 V

Three-State Output Current at

Receiver

OZR

0 ≤ V

≤ V

± 1µA

Receiver Input Resistance R

-7V ≤ V

≤ 12V 48 kΩ

Receiver Output Short-Circuit

Current

OSR

0 ≤ V

≤ V

±95 mA

CONTROL

Control Input High Voltage V

CIH

DE, RE 2.0 V

Control Input Low Voltage V

CIL

DE, RE 0.8 V

Input Current DE Current Latch

During First DE Rising Edge

80 µA

Input Current RE Current Latch

During First RE Rising Edge

80 µA

PROTECTION SPECIFICATIONS

= +3.3V ±10%, T

= T

MIN

to T

MAX

unless otherwise noted. Typical values are at V

= +3.3V and T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

ESD Protection A, B Human Body Model ±12 kV

SUPPLY CURRENT

No load, RE = 0, DE = V

, DI = 0 or V

3.5 10

Supply Current I

No load, RE = V

, DE = V

CC,

DI = 0 or V

3.0 8

Supply Current in Shutdown

Mode

SHDN

RE = V

, DE = 0 200 µA

1 2 3 4 5 6 7 8 ... 12 13

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