LTC2877HMSE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LTC2877HMSE#PBF is a 60 V fault-protected RS-485/RS-422 transceiver supporting PROFIBUS and operating from 3 V or 5 V logic supplies. It features differential Schmitt trigger inputs and a single driver/receiver channel in a small outline package. The device delivers robust industrial communication with ±60 V bus fault protection for harsh environments.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- LTC2877HMSE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.9700(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- ±60 V bus fault protection prevents damage from wiring faults and shorts in industrial RS-485 networks
- Dual 3 V and 5 V logic supply compatibility simplifies integration across mixed-voltage system designs
- Differential Schmitt trigger receiver inputs reject common-mode noise on long cable runs up to 1200 m
- PROFIBUS-compatible signaling supports multi-drop industrial networks with up to 32 unit loads per segment
Applications
The LTC2877HMSE#PBF is designed for PROFIBUS DP fieldbus networks, industrial automation controllers, and process control equipment where RS-485 cables may be exposed to high-voltage fault conditions exceeding ±60 V. It suits factory-floor motor drives, PLCs, and sensor interfaces that require reliable half-duplex differential communication over long cable runs in electrically noisy environments. The device also fits building automation systems and energy meters that demand fault-tolerant serial links between distributed nodes.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1664 |
| YTEOL | 10 |
| Additional Feature | ALSO OPERATE WITH 3V SUPPLY |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| High Level Input Current-Max | 0.00002A |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-422; EIA-485 |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Characteristics | DIFFERENTIAL |
| Output Low Current-Max | 0.003A |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Receive Delay-Max | 70ns |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 1.2mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Transmit Delay-Max | 50ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much bus fault voltage can the LTC2877HMSE#PBF withstand without damage?
The LTC2877HMSE#PBF is rated for ±60 V bus fault protection on its RS-485 differential lines, far exceeding the ±7 V common-mode range of standard transceivers. This allows the device to survive wiring mistakes, power-line inductive transients, and short circuits to supply rails in industrial installations without requiring external protection components.
Can the LTC2877HMSE#PBF operate from a 3.3 V microcontroller logic supply in a mixed-voltage design?
Yes, the LTC2877HMSE#PBF supports both 3 V and 5 V logic supply operation, allowing direct connection to 3.3 V microcontroller GPIO pins without level shifters. The RS-485 bus outputs remain compliant regardless of whether the logic supply is 3 V or 5 V, simplifying board design and reducing component count in mixed-voltage industrial systems.
What cable lengths and node counts does this transceiver support on a PROFIBUS segment?
The LTC2877HMSE#PBF meets PROFIBUS RS-485 specifications, supporting cable runs up to 1200 m at 9600 baud and up to 32 unit loads per segment before a repeater is needed. At higher baud rates such as 12 Mbit/s the maximum cable length reduces to approximately 100 m, consistent with standard PROFIBUS network topology rules for high-speed process automation.
How does the differential Schmitt trigger input improve noise rejection on long RS-485 cable runs?
The differential Schmitt trigger receiver applies hysteresis to the differential input voltage, requiring a threshold crossing of at least 200 mV to change state. This rejects common-mode noise and slow bus transitions induced on cables over 100 m, preventing false bit errors in environments with variable-frequency motor drives and switching power supplies generating significant electromagnetic interference.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $5.7529 | $575.29 |
| 250+ | $5.4000 | $1350.00 |
| 1000+ | $4.9700 | $4970.00 |
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