MAX13443EASA+T

Part: MAX13442E/MAX13443E/MAX13444E — Maxim Integrated

Type: ±15kV ESD-Protected, ±80V Fault-Protected, Fail-Safe RS-485/J1708 Transceivers

Description: Fault-protected RS-485 and J1708 transceivers featuring ±80V (MAX13442E/MAX13444E) or ±60V (MAX13443E) protection from signal faults, supporting data rates up to 10Mbps (MAX13443E) or 250kbps (MAX13442E/MAX13444E), with true fail-safe inputs and ±15kV ESD protection.

Operating Conditions:

• Supply voltage: +4.75V to +5.25V
• Operating temperature: -40°C to +125°C
• Common-mode input range: -7V to +12V

Absolute Maximum Ratings:

• Max supply voltage: +7V
• Max bus pin voltage (A, B): ±80V (MAX13442E/MAX13444E), ±60V (MAX13443E)
• Max junction temperature: +150°C

Key Specs:

• Data Rate (MAX13443E): 10 Mbps
• Data Rate (MAX13442E/MAX13444E): 250 kbps
• Fault Protection (MAX13442E/MAX13444E): ±80 V
• Fault Protection (MAX13443E): ±60 V
• ESD Protection (A, B, Human Body Model): ±15 kV
• Receiver Input Resistance: 48 kΩ
• Transceivers on Bus: 128
• Receiver-Differential Threshold Voltage: -200 mV to -50 mV
• Supply Current (Normal Operation, MAX13443E): 10 mA (max)

Features:

• ±15kV ESD Protection
• ±80V Fault Protection (±60V MAX13443E)
• Guaranteed 10Mbps Data Rate (MAX13443E)
• Hot-Swappable for Telecom Applications
• True Fail-Safe Receiver Inputs
• Enhanced Slew-Rate-Limiting Facilitates Error-Free Data Transmission (MAX13442E/MAX13444E)
• Allow Up to 128 Transceivers on the Bus
• -7V to +12V Common-Mode Input Range
• ±6mA FoldBack Current Limit
• Industry-Standard Pinout

Applications:

• RS-422/RS-485 Communications
• Truck and Trailer Applications
• Industrial Networks
• Telecommunications Systems
• Automotive Applications
• HVAC Controls

Package:

• 8-pin SO

• ±15kV ESD Protection
• ±80V Fault Protection (±60V MAX13443E)
• Guaranteed 10Mbps Data Rate (MAX13443E)
• Hot-Swappable for Telecom Applications
• True Fail-Safe Receiver Inputs
• Enhanced Slew-Rate-Limiting Facilitates Error-Free Data Transmission (MAX13442E/MAX13444E)
• Allow Up to 128 Transceivers on the Bus
• -7V to +12V Common-Mode Input Range
• ±6mA FoldBack Current Limit
• Industry-Standard Pinout

• RS-422/RS-485 Communications
• Truck and Trailer Applications
• Industrial Networks

MAX13443EASA+T Pinout

Package: 8-SOIC (0.154", 3.90mm Width)

Notes

• This is a single-channel RS-485 transceiver in 8-SOIC package.
• RE (pin 2) is active-low receiver enable; DE (pin 3) is active-high driver enable.
• Pins A (6) and B (7) form the differential RS-485 bus pair.
• VCC (pin 8) and GND (pin 5) are power supply pins.

(V CC = +4.75V to +5.25V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5V and T A = +25°C.)

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Note 1: During normal operation, a termination resistor must be connected between A and B in order to guarantee overvoltage protection up to the absolute maximum rating of this device. When not in operation, these devices can withstand fault voltages up to the maximum rating without a termination resistor and will not be damaged.

Stresses beyond those listed under 'Absolute Maximum Ratings' may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

SO

Junction-to-Ambient Thermal Resistance (θ

JA ) ........132°C/W Junction-to-Case Thermal Resistance (θ JC ) ...............38°C/W

Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial .

For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . Note that a '+', '#', or '-' in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.