MAX13410E

RS-485 Transceiver with Integrated Low-Dropout Regulator and AutoDirection Control

Industry's First Transceiver Integrating a Low-Dropout Regulator and AutoDirection, Eliminating the Need for a Control Channel


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Description

The MAX13410E–MAX13415E are half-duplex RS-485-/RS-422-compatible transceivers optimized for isolated applications. These devices feature an internal low-dropout regulator (LDO), one driver, and one receiver. The internal LDO allows the part to operate from an unregulated power supply of up to 28V. The AutoDirection feature reduces the number of optical isolators needed in isolated applications. Other features include enhanced ESD protection, fail-safe circuitry, slew-rate limiting, and full-speed operation.

The MAX13410E–MAX13415E internal LDO generates a 5V ±10% power supply that is used to power its internal circuitry. The MAX13412E–MAX13415E bring the 5V to an output VREG that allows the user to power additional external circuitry with up to 20mA to further reduce external components. The MAX13410E/MAX13411E do not have a 5V output and come in industry-compatible pinouts. This allows easy replacement in existing designs.

The MAX13410E–MAX13415E feature a 1/8-unit load receiver input impedance, allowing up to 256 transceivers on the bus. All driver outputs are ESD protected using the Human Body Model. These devices also include fail-safe circuitry (MAX13410E/MAX13411E/MAX13414E/MAX13415E only), guaranteeing a logic-high receiver output when the receiver inputs are open or shorted. The receiver outputs a logic-high when the transmitter on the terminated bus is disabled (high impedance).

The MAX13412E/MAX13413E feature Maxim's proprietary AutoDirection control. This architecture eliminates the need for the DE and active-low RE control signals. In isolated applications, this reduces the cost and size of the system by reducing the number of optical isolators required.

The MAX13410E/MAX13412E/MAX13414E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free transmission up to 500kbps. The MAX13411E/MAX13413E/MAX13415E are not slew-rate limited, allowing transmit speeds up to 16Mbps.

The MAX13410E–MAX13415E are available in an 8-pin SO package with an exposed paddle to improve power dissipation, and operate over the extended -40°C to +85°C temperature range.

Design Solution: Simplify Your Industrial Interface by Eliminating RS-485 Control Lines ›

MAX13410E, MAX13411E, MAX13412E, MAX13413E: Functional Diagrams MAX13410E, MAX13411E, MAX13412E, MAX13413E: Functional Diagrams Enlarge+

Key Features

  • Wide +6V to +28V Input Supply Range
  • +5V Output Supplies Up to 20mA to External Circuitry
  • Internal LDO
  • Low 65µA (typ) Shutdown Supply Current
  • Extended ESD Protection
    • ±15kV Human Body Model (MAX13412E/MAX13413E)
    • ±14kV Human Body Model (MAX13410E/MAX13411E)
  • 1/8-Unit Load, Allowing Up to 256 Transceivers on the Bus
  • -40°C to +85°C Operating Temperature Range
  • Fail-Safe
  • Slew-Rate Limited and Full-Speed Versions
  • Up to 16Mbps Data Rate on Full-Speed Versions

Applications/Uses

  • Industrial Equipment
  • Isolated RS-485 Interfaces
  • Telecomm Equipment
  • Utility Meters

See parametric specs for RS-485/RS-422 Line Driver/Receivers (208)


Part NumberTx/RxDuplexVSUPPLY
(V)
ICC
(mA)
Data Rate
(kbps)
ESD Protection
(±kV)
Tx ENRx ENICC (Shutdn.)
(µA)
Rx/Tx on BusRx Failsafe w/ InputsSlew Rate LimitingOper. Temp.
(°C)
Package/PinsBudgetary
Price
typmintypSee Notes
MAX13410E 1Tx + 1RxHalf6 to 28550014YesYes45256Open or ShortedYes-40 to +85
SOIC (N)/8
$2.18 @1k
MAX13411E 1600014No
SOIC (N)/8
$2.18 @1k
MAX13412E 50015Yes
SOIC (N)/8
$2.11 @1k
MAX13413E 1600015Yes
SOIC (N)/8
$2.11 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Request Reliability Report for: MAX13410E 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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