ISL32272E Quad, ±16.5kV ESD Protected, 3.0V to 5.5V, Low Power, RS-422 Transmitters

ISL32272E

Quad, ±16.5kV ESD Protected, 3.0V to 5.5V, Low Power, RS-422 Transmitters

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	ISL32272EFBZ	Details
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Datasheet
	ISL32272E
	Quad, ±16.5kV ESD Protected, 3.0V to 5.5V, Low Power, RS-422 Transmitters

# of Tx

# of Rx

Devices Allowed on Bus

256

Half/Full Duplex

N/A

High ESD

Yes-IEC61000

Hot Plug

Yes

Data Rate (Mbps)

Slew Rate Limited

Tx/Rx Enable

Yes - Group Enables

I_S EN/DIS (µA)

600

SHDN I_CC (µA)

N/A

V_CC Range (V)

3.0 to 5.5

V_L Pin

V_CC (min) (V)

V_CC (max) (V)

5.5

Product Information

Key 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 ('172/'174) or in a Space Saving QFN (ISL32179E) with Added Features
Logic Supply Pin (V_L) Eases Operation in Mixed Supply Systems (ISL32179E Only)
User Selectable Data Rate (ISL32179E Only)
Hot Plug - Tx Outputs Remain Three-state 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 (Max)
- Low Shutdown Supply Current 60μA
Current Limiting and Thermal Shutdown for Driver Overload Protection
Tri-statable Tx Outputs
5V Tolerant Logic Inputs When V_CC ≤ 5V
Pb-Free (RoHS Compliant)

Description

The Intersil ISL32x7xE 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.

Driver (Tx) outputs are tri-statable, and incorporate a hot plug feature to keep them disabled during power-up and down. Versions are available with a common EN/EN ('172 pinout), a two channel EN12/EN34 ('174 pinout), or a versatile combination of individual and group channel enables.

The ISL32372E, ISL32374E utilize slew rate limited drivers which reduce EMI, and minimize reflections from improperly terminated transmission lines, or from unterminated stubs in multidrop and multipoint applications. Drivers on the other versions are not limited, so they can achieve the 10Mbps or 32Mbps data rates. All versions are offered in Industrial and Extended Industrial (-40°C to +125°C) temperature ranges.

A 50% smaller footprint (compared to the TSSOP) is available with the ISL32179E's QFN package. This device also features a logic supply pin (V_L), 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 user to select from three slew rate options for 460kbps, 10Mbps, or 32Mbps data rates. Individual channel and group enable pins increase the ISL32179E's flexibility.

Pricing / Packaging / Samples / Ordering

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	Part No.	Design-In Status	Temp.	Package	MSL	Price US $

	ISL32272EFBZ	Active	Full-Range Ind	16 Ld SOIC	2	1.73

	ISL32272EFBZ-T	Active	Full-Range Ind	16 Ld SOIC T+R	2	1.73

	ISL32272EFVZ	Active	Full-Range Ind	16 Ld TSSOP	2	1.73

	ISL32272EFVZ-T	Active	Full-Range Ind	16 Ld TSSOP T+R	2	1.73

	ISL32272EIBZ	Active	Ind	16 Ld SOIC	2	1.60

	ISL32272EIBZ-T	Active	Ind	16 Ld SOIC T+R	2	1.60

	ISL32272EIVZ	Coming Soon	Ind	16 Ld TSSOP	2	1.60

	ISL32272EIVZ-T	Coming Soon	Ind	16 Ld TSSOP T+R	2	1.60

The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.
MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020
SMD = Standard Microcircuit Drawing

Technical Documentation

Datasheet(s):
Quad, ±16.5kV ESD Protected, 3.0V to 5.5V, Low Power, RS-422 Transmitters
Technical Homepage:
Interface ICs

Tools And Support
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Application Block Diagrams

Applications

Telecom Equipment
Motor Controllers/Encoders
Programmable Logic controllers
Industrial/Process Control Networks

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Parametric Table

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