PMBT3904QA - 40 V, 200 mA NPN switching transistor - 艾金森 Dratk PQMD12 - NPN/PNP resistor-equipped transistors; R1?=?47?kΩ,?R2?=?47?kΩ - 艾金森 Dratk PZU6.2B2 - Single Zener diodes in a SOD323F package - 艾金森 Dratk PBSS5320D - 20 V low VCEsat PNP transistor - 艾金森 Dratk PZU5.1B1A - Single Zener diodes - 艾金森 Dratk PMBT3904VS - 40 V, 200 mA NPN/NPN switching transistor - 艾金森 Dratk PBSS5320T - 20 V, 3 A PNP low VCEsat (BISS) transistor - 艾金森 Dratk PZU5.1B2A - Single Zener diodes - 艾金森 Dratk PQMD13 - NPN/PNP resistor-equipped transistors; R1?=?4.7?k?,?R2?=?47?k? - 艾金森 Dratk PZU6.2B3 - Single Zener diodes in a SOD323F package - 艾金森 Dratk PMBT3906 - PNP switching transistor - 艾金森 Dratk PQMD16 - NPN/PNP resistor-equipped transistors; R1?=?22?k?,?R2?=?47?k? - 艾金森 Dratk PZU6.8B - Single Zener diodes in a SOD323F package - 艾金森 Dratk PZU5.1B2L - Single Zener diodes - 艾金森 Dratk PBSS5320X - 20 V, 3 A PNP low VCEsat (BISS) transistor - 艾金森 Dratk PMBT3906M - 40 V, 200 mA PNP switching transistor - 艾金森 Dratk PZU6.8B1 - Single Zener diodes in a SOD323F package - 艾金森 Dratk PQMH2 - NPN/NPN resistor-equipped transistors; R1?=?47?k?,?R2?=?47?k? - 艾金森 Dratk PBSS5330PA - 30 V, 3 A PNP low VCEsat (BISS) transistor - 艾金森 Dratk PZU5.1B3A - Single Zener diodes - 艾金森 Dratk PMBT3906MB - 40 V, 200 mA PNP switching transistor - 艾金森 Dratk PZU6.8B2 - Single Zener diodes in a SOD323F package - 艾金森 Dratk PBSS5330PAS - 30 V, 3 A PNP low VCEsat (BISS) transistor - 艾金森 Dratk PQMH9 - NPN/NPN resistor-equipped transistors; R1?=?10?k?,?R2?=?47?k? - 艾金森 Dratk PZU5.1BA - Single Zener diodes - 艾金森 Dratk PMBT3906VS - 40 V, 200 mA PNP/PNP switching transistor - 艾金森 Dratk PZU6.8B3 - Single Zener diodes in a SOD323F package - 艾金森 Dratk PBSS5330X - 30 V, 3 A PNP low VCEsat (BISS) transistor - 艾金森 Dratk PQMH10 - NPN/NPN resistor-equipped transistors; R1?=?2.2?k?,?R2?=?47?k? - 艾金森 Dratk PZU7.5B - Single Zener diodes in a SOD323F package - 艾金森 Dratk PZU5.1BL - Single Zener diodes - 艾金森 Dratk PMBT3946VPN - 40 V, 200 mA NPN/PNP switching transistor - 艾金森 Dratk PBSS5350D - 50 V, 3 A PNP low VCEsat (BISS) transistor - 艾金森 Dratk PZU5.6B1A - Single Zener diodes - 艾金森 Dratk PQMH11 - NPN/NPN resistor-equipped transistors; R1?=?10?k?,?R2?=?10?k? - 艾金森 Dratk PZU7.5B1 - Single Zener diodes in a SOD323F package - 艾金森 Dratk PMBT4401 - NPN switching transistor - 艾金森 Dratk PZU5.6B2A - Single Zener diodes - 艾金森 Dratk PBSS5350T - 50 V, 3 A PNP low VCEsat (BISS) transistor - 艾金森 Dratk PQMH13 - NPN/NPN resistor-equipped transistors; R1?=?4.7?k?,?R2?=?47?k? - 艾金森 Dratk PZU7.5B2 - Single Zener diodes in a SOD323F package - 艾金森 Dratk PMBT4401YS - 40 V, 600 mA, double NPN switching transistor - 艾金森 Dratk PBSS5350TH - 50 V, 3 A PNP low VCEsat (BISS) transistor - 艾金森 Dratk PRMB11 - 50 V, 100 mA PNP/PNP Resistor-Equipped double Transistors (RET) - 艾金森 Dratk PZU5.6B2L - Single Zener diodes - 艾金森 Dratk PZU7.5B3 - Single Zener diodes in a SOD323F package - 艾金森 Dratk PMBT4403 - 40 V, 600 mA, PNP switching transistor - 艾金森 Dratk PZU8.2B - Single Zener diodes in a SOD323F package - 艾金森 Dratk PBSS5350X - 50 V, 3 A PNP low VCEsat (BISS) transistor - 艾金森 Dratk PZU5.6B3A - Single Zener diodes - 艾金森 Dratk
ISL43485
3.3V, Half Duplex, 30Mbps, RS-485/RS-422 Transceiver

热度 119

The Intersil ISL43485 is a high speed BiCMOS 3.3V powered, single transceiver that meets both the RS-485 and RS-422 standards for balanced communication. Unlike some competitive devices, this Intersil transceiver is specified for 10% tolerance supplies (3V to 3.6V).

Data rates up to 30Mbps are achievable by using this transceiver, which features higher slew rates.

Logic inputs (e.g., DI and DE) accept signals in excess of 5.5V, making them compatible with 5V logic families.

Receiver (Rx) inputs feature a "fail-safe if open" design, which ensures a logic high output if Rx inputs are floating, and the ISL43485 presents a "single unit load" to the RS-485 bus, which allows up to 32 transceivers on the network.

Driver (Tx) outputs are short circuit protected, even for voltages exceeding the power supply voltage. Additionally, on-chip thermal shutdown circuitry disables the Tx outputs to prevent damage if power dissipation becomes excessive.

  • High Data Rate up to 30Mbps
  • Operates from a Single +3.3V Supply (10% Tolerance)
  • Interoperable with 5V Logic
  • Single Unit Load Allows up to 32 Devices on the Bus
  • Low Current Shutdown Mode 15nA
  • -7V to +12V Common Mode Input Voltage Range
  • Three State Rx and Tx Outputs
  • 10ns Propagation Delay, 1ns Skew
  • Half Duplex Pinout
  • Current Limiting and Thermal Shutdown for driver Overload Protection
  • Pb-Free Available (RoHS Compliant)
    • SCSI "Fast 20" Drivers and Receivers
    • Factory Automation
    • Data Loggers
    • Security Networks
    • Building Environmental Control Systems
    • Industrial/Process Control Networks
    • Level Translators
 
Alternatives
Parameters ISL43485 ISL83485 ISL83483 ISL83490
Key FeatureHigh Speed Low Cost Low Cost Low Cost
# of Tx1 1 1 1
# of Rx1 1 1 1
Devices Allowed on Bus32 32 32 32
Half/Full DuplexHalf Half Half Full
High ESD?No No No No
Hot PlugNo No No No
Data Rate30 Mbps 10 Mbps 0.25 Mbps 10 Mbps
VCC (min)3 V 3 V 3 V 3 V
VCC (max)3.6 V 3.6 V 3.6 V 3.6 V
Slew Rate LimitedNo No Yes No
Tx/Rx EnableYes Yes Yes No
IS Enabled/Disabled750/650 μA 750/650 μA 750/650 μA 650 μA
SHDN ICC0.015 μA 0.015 μA 0.015 μA N/A μA
VL PinNo No No No
Qualification LevelStandard Standard Standard Standard

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