Quad, ±16.5kV ESD Protected, 3.0V to 5.5V, Low Power, RS-422 Transmitters
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Overview
Description
The ISL32172E, ISL32272E, ISL32174E, and ISL32179E are ±16. 5kV IEC61000-4-2 ESD protected, 3. 0V to 5. 5V powered, QUAD transmitters for balanced communication using the RS-422 standard. These drivers have very low output leakage currents (±10µA), so they present a low load to the RS-422 bus. The driver (Tx) outputs are tri-statable and incorporate a hot plug feature to keep them disabled during power-up and power-down. The ISL32172E and ISL32272E have a common EN/EN, the ISL32174E has a two channel EN12/EN34, and the ISL32179E has a versatile combination of individual and group channel enables (see Table 1). Only the ISL32179E driver can be slew-rate limited, and only at the data rate of 0. 46Mbps. Drivers on the other versions are not limited, so they can achieve 10Mbps or 32Mbps data rates. All versions are offered in industrial and extended industrial (-40°C to +125°C) temperature ranges. The ISL32179E's QFN package has a 50% smaller footprint compared to the TSSOP. The ISL32179E also features a logic supply pin (VL) that sets the switching points of the enable and DI inputs to be compatible with a lower supply voltage in mixed voltage systems. Two speed select pins allow the ISL32179E to be configured for 460kbps, 10Mbps, or 32Mbps data rates. Individual channel and group enable pins increase the ISL32179E's flexibility.
Features
- IEC61000 ESD protection on RS-422 outputs: ±16.5kV
- Class 3 ESD level on all other pins: 12kV HBM
- High machine model ESD level on all pins: 700V
- Wide supply range: 3.0V to 5.5V
- Specified for +125°C operation
- Available in industry standard pinouts (ISL32172E, ISL32272E, ISL32174E) or in a space saving QFN (ISL32179E) with added features
- Logic supply pin (VL) eases operation in mixed supply systems (ISL32179E only)
- User-selectable data rate (ISL32179E only)
- Hot plug Tx outputs remain tri-stated during power-up and power-down
- Low Tx leakage allows > 256 devices on the bus
- High data rates: up to 32Mbps
- Low quiescent supply current: 0.8mA (maximum)
- Low shutdown supply current: 60µA
- Current limiting and thermal shutdown for driver overload protection
- Tri-statable Tx outputs
- 5V tolerant logic inputs when VCC ≤ 5V
- Pb-free (RoHS compliant)
Applications
Applications
- Telecom Equipment
- Motor Controllers / Encoders
- Programmable Logic controllers
- Industrial/Process Control Networks
Documentation
| Title | Type | Date | |
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PDF1.47 MB
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Datasheet
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PDF365 KB
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Application Note
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PDF207 KB
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Application Note
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PDF474 KB
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Application Note
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PDF366 KB
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Application Note
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PDF178 KB
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Application Note
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PDF513 KB
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Application Note
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PDF826 KB
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Application Note
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PDF443 KB
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Application Note
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PDF582 KB
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Application Note
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PDF440 KB
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Application Note
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PDF338 KB
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Application Note
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PDF365 KB
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Application Note
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PDF375 KB
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Application Note
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Brochure
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PDF2.95 MB
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Brochure
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PDF1.17 MB
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End Of Life Notice
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PDF156 KB
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Other
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PDF253 KB
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Other
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PDF254 KB
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Other
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PDF106 KB
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Product Advisory
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PDF266 KB
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Product Change Notice
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PDF398 KB
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Product Change Notice
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PDF108 KB
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Product Change Notice
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PDF121 KB
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Product Change Notice
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PDF120 KB
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Product Change Notice
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PDF438 KB
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Report
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Technical Brief
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PDF188 KB
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Technical Brief
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White Paper
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Design & Development
Software & Tools
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Product Options
Processing table
ISL32174EFVZ Active Samples Available |
TSSOP | Tube | 1920 | Get Samples, |
| TSSOP | Reel | 2500 |
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