Features
- High ESD protection on RS-485 outputs ±16.5kV HBM
- IEC 61000-4-2 contact test method ±7kV
- Class 3 ESD level on all other pins >8kV HBM
- Specified for +125°C operation (VCC ≤ 3.6V only)
- Logic supply pin (VL) eases operation in mixed supply systems (ISL3298E only)
- Hot plug - Tx outputs remain three-state during power-up
- Low Tx leakage allows >256 devices on the bus
- High data rates up to 20Mbps
- Low quiescent supply current 150µA (max)
- Very low shutdown supply current 1µA (max)
- -7V to +12V common-mode output voltage range (VCC ≤ 3.6V only)
- Current limiting and thermal shutdown for driver overload protection (VCC ≤ 3.6V only)
- Tri-statable Tx outputs
- 5V tolerant logic inputs when VCC ≤5V
ISL3295E_ISL3298E Functional Diagram
Description
A 26% smaller footprint is available with the ISL3298E TDFN package. This device also features a logic supply pin (VL) that sets the switching points of the DE and DI inputs to be compatible with a lower supply voltage in mixed voltage systems. For companion single RS-485 receivers in micro packages, please see the ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E datasheet.
Parameters
| Attributes | Value |
|---|---|
| Temp. Range (°C) | -40 to +125°C |
| Devices Allowed on Bus | 256 |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TDFN | 2.0 x 3.0 x 0.75 | 8 | 0.5 |
Application Block Diagrams
 | AC Drive & General Purpose Inverter System This system provides a basic configuration and essential components for AC drives and general purpose (GP) inverters. |
Additional Applications
- Clock distribution
- High node count systems
- Space-constrained systems
- Security camera networks
- Building environmental control/lighting systems
- Industrial/process control networks
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| Part Number | Status | Samples | Stock | RoHS | Package | Budgetary Price (USD) | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pb (Lead) Free | Pb Free Category | MOQ | Temp. Range (°C) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ISL3298EFRTZ-T | Active | Available | In Stock | RoHS:EN | TDFN | 1ku | $0.63 | 8# | Reel | 3 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | 6000 | -40 to +125°C | MALAYSIA | USA |
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- TrainingPDF 719 KB R15TB0008EU0100 Rev.1.00 Dec 18, 2023
- TrainingPDF 762 KB R15TB0007EU0100 Rev.1.00 Dec 04, 2023
- TrainingPDF 208 KB R15TB0004EU0100 Rev.1.00 Oct 26, 2023
- TrainingPDF 405 KB R15TB0003EU0100 Rev.1.00 Jun 26, 2023
- TrainingPDF 239 KB R15TB0002EU0100 Rev.1.00 Jun 21, 2023
- Application NotePDF 365 KB AN1978 Apr 12, 2023AI-generated Summary: The document details surge protection circuits for RS-485 transceivers, focusing on Level 4 (4kV) protection using gas discharge tubes (GDTs) for higher overvoltage and overcurrent tolerance. It compares protection schemes by component count, board area, and cost, highlighting that higher-level protection increases complexity and expense. The BOMs for Level 3 and Level 4 circuits list components such as transceivers, bidirectional TVS diodes, transient blocking units, thyristors or GDTs, and resistors. The GDT switching characteristic explains how it diverts transient currents to ground by transitioning from high impedance to a crowbar current path. Simpler protection can be achieved with overvoltage protected transceivers.
- Application NotePDF 207 KB an1985 Aug 19, 2022AI-generated Summary: Transient protection for RS-485 transceivers involves careful TVS diode design to prevent damage from high surge currents. Internal ESD structures in the ISL3152E share transient current with external TVS diodes, risking damage without current-limiting resistors. Using thick-film resistors under 200 ohms between TVS and transceiver limits surge current while minimizing bus voltage attenuation. Recommended PCB layout includes low-inductance ground and Vcc planes, 0603 resistors for wave or reflow soldering, and proper component placement to reduce inductance and enhance protection.
- Application NotePDF 474 KB AN1979 Aug 16, 2022AI-generated Summary: The document explains surge protection using Renesas’ Overvoltage Protected (OVP) transceivers with various protection schemes. It details the use of TVS diodes and thyristors to protect data lines against surge currents while maintaining low capacitance for high data rates. Different configurations address various common-mode voltage ranges and surge levels, ensuring compliance with IEC61000-4-5 standards. The paper includes calculations for peak protection voltages and discusses device characteristics and combinations for robust surge protection in industrial applications.
- Technical BriefPDF 188 KB R70TB0002EU0100 Rev.1.00 May 17, 2022
- Product Change NoticePDF 326 KB May 21, 2021
- Application NotePDF 178 KB r15an0002eu-rs-485-transient-protection Oct 28, 2019
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- Application NotePDF 365 KB AN1978 Apr 12, 2023AI-generated Summary: The document details surge protection circuits for RS-485 transceivers, focusing on Level 4 (4kV) protection using gas discharge tubes (GDTs) for higher overvoltage and overcurrent tolerance. It compares protection schemes by component count, board area, and cost, highlighting that higher-level protection increases complexity and expense. The BOMs for Level 3 and Level 4 circuits list components such as transceivers, bidirectional TVS diodes, transient blocking units, thyristors or GDTs, and resistors. The GDT switching characteristic explains how it diverts transient currents to ground by transitioning from high impedance to a crowbar current path. Simpler protection can be achieved with overvoltage protected transceivers.
- Application NotePDF 207 KB an1985 Aug 19, 2022AI-generated Summary: Transient protection for RS-485 transceivers involves careful TVS diode design to prevent damage from high surge currents. Internal ESD structures in the ISL3152E share transient current with external TVS diodes, risking damage without current-limiting resistors. Using thick-film resistors under 200 ohms between TVS and transceiver limits surge current while minimizing bus voltage attenuation. Recommended PCB layout includes low-inductance ground and Vcc planes, 0603 resistors for wave or reflow soldering, and proper component placement to reduce inductance and enhance protection.
- Application NotePDF 474 KB AN1979 Aug 16, 2022AI-generated Summary: The document explains surge protection using Renesas’ Overvoltage Protected (OVP) transceivers with various protection schemes. It details the use of TVS diodes and thyristors to protect data lines against surge currents while maintaining low capacitance for high data rates. Different configurations address various common-mode voltage ranges and surge levels, ensuring compliance with IEC61000-4-5 standards. The paper includes calculations for peak protection voltages and discusses device characteristics and combinations for robust surge protection in industrial applications.
- Application NotePDF 178 KB r15an0002eu-rs-485-transient-protection Oct 28, 2019
- White PaperIndustrial PC designs increasingly demand compact form factors and flexible communication interfaces. This paper explores how modern dual-protocol transceivers support both RS-232 and RS-485 standards while offering high integration and advanced configuration options. It also presents application examples that illustrate their versatility in industrial systems.View More (13)
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- Product Change NoticePDF 326 KB May 21, 2021
- Product Change NoticePDF 398 KB PCN15046 Jan 07, 2016
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- TrainingPDF 719 KB R15TB0008EU0100 Rev.1.00 Dec 18, 2023
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Knowledge Base
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What is your recommended replacement for ISL3297E?
Question: What is your recommended replacement for ISL3297E? Answer: We recommend ISL3298EFRTZ-T. The package and pinouts are the same as the ISL3297E. The difference is the ISL3297E utilizes a slew rate limited driver which reduce EMI, and minimize reflections from improperly terminated transmission lines, or from unterminated stubs in ...
-
What is your recommended replacement for ISL3296E?
Question: What is your recommended replacement for ISL3296E? Answer: We recommend ISL3298EFRTZ-T. The package and pinouts are the same as the ISL3296E. The difference is the ISL3296E utilizes a slew rate limited driver which reduce EMI, and minimize reflections from improperly terminated transmission lines, or from unterminated stubs in ...
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