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IL41050TE

Isolated High-Speed CAN Transceiver

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IL41050

Isolated High-Speed CAN Transceiver

Functional Diagram

S

TxD

CANH

RxD

CANL

IL41050

VDD2 (V) TxD(1) S CANH CANL Bus State

4.75 to 5.25 ↓ Low(2) High Low Dominant

4.75 to 5.25 X High VDD2/2 VDD2/2 Recessive

4.75 to 5.25 ↑

X VDD2/2 VDD2/2 Recessive

<2V (no pwr) X

X 0<V<2.5 0<V<2.5 Recessive

2>VDD2<4.75 >2V X 0<V<2.5 0<V<2.5 Recessive

RxD

Low

High

High

High

High

Table 1. Function table.

Notes:

1. TxD input is edge triggered: ↑ = Logic Lo to Hi, ↓ = Hi to Lo

2. Valid for logic state as described or open circuit

X = don’t care

Features

• Single-chip isolated CAN/DeviceNet transceiver

• Fully compliant with the ISO 11898 CAN standard

• Best-in-class loop delay (180 ns typ.)

• 3.0 V to 5.5 V input power supplies

• >110-node fan-out

• High speed (up to 1 Mbps)

• 2,500 VRMS isolation (1 minute)

• Very low Electromagnetic Emission (EME)

• Differential signaling for excellent Electromagnetic Immunity (EMI)

• 30 kV/µs transient immunity

• Silent mode to disable transmitter

• Unpowered nodes do not disturb the bus

• Transmit data (TxD) dominant time-out function

• Edge triggered, non-volatile input improves noise performance

• Bus pin transient protection for automotive environment

• Thermal shutdown protection

• Short-circuit protection for ground and bus power

• −55°C to +125°C operating temperature

• 0.15" and 0.3" and 16-pin JEDEC-standard SOIC packages

• UL1577 and IEC 61010-2001 approved

Applications

• Noise-critical CAN

• Partially-powered CAN

• DeviceNet

• Factory automation

Description

The IL41050 is a galvanically isolated, high-speed CAN (Controller

Area Network) transceiver, designed as the interface between the

CAN protocol controller and the physical bus. The IL41050 provides

isolated differential transmit capability to the bus and isolated

differential receive capability to the CAN controller via NVE’s

patented* IsoLoop spintronic Giant Magnetoresistance (GMR)

technology.

Advanced features facilitate reliable bus operation. Unpowered nodes

do not disturb the bus, and a unique non-volatile programmable

power-up feature prevents unstable nodes. The devices also have a

hardware-selectable silent mode that disables the transmitter.

Designed for harsh CAN and DeviceNet environments, IL41050T

transceivers have transmit data dominant time-out, bus pin transient

protection, thermal shutdown protection, and short-circuit protection,

Unique edge-triggered inputs improve noise performance. Unlike

optocouplers or other isolation technologies, IsoLoop isolators have

indefinite life at high voltage.

IsoLoop® is a registered trademark of NVE Corporation.

*U.S. Patent number 5,831,426; 6,300,617 and others.

REV. J

NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 Fax: (952) 829-9189 www.IsoLoop.com ©NVE Corporation

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