FN7607 Rev.2.00

Page 1 of 11

Oct 24, 2019

FN7607

Rev.2.00

Oct 24, 2019

ISL3298EMRTEP

16kV ESD Protected, +125°C, 3.0V to 5.5V, TDFN Packaged, Low Power

RS-485/RS-422 Transmitter

DATASHEET

The ISL3298EMRTEP is a ±16.5kV HBM ESD Protected (7kV

IEC61000 contact), 3.0V to 5.5V powered, single transmitter

for balanced communication using the RS-485 and RS-422

standards. This driver has very low bus currents (±40mA);

therefore, it presents less than a 1/8 unit load to the RS-485

bus. This allows more than 256 transmitters on the network

without violating the RS-485 specification 32 unit load

maximum, and without using repeaters.

Hot Plug circuitry ensures that the Tx outputs remain in a high

impedance state while the power supply stabilizes.

The driver on the ISL3298EMRTEP is not limited, so it can achieve

a 16Mbps data rate and is offered in the -55°C to +125°C

temperature range.

This devices also feature 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 a companion single RS-485 receiver in micro packages,

see the ISL3282EMRTEP datasheet.

Applications

• Clock distribution

• High node count systems

• Space constrained systems

•Security camera networks

• Building environmental control/lighting systems

• Industrial/process control networks

Related Literature

For a full list of related documents, visit our website:

• ISL3298EMRTEP device page

Features

• Specifications per DLA VID V62/10602

• Full mil-temp electrical performance from -55°C to +125°C

• Controlled baseline with one wafer fabrication site and one

assembly/test site

• Full homogeneous lot processing in wafer fab

• No combination of wafer fabrication lots in assembly

• Full traceability through assembly and test by date/trace

code assignment

• Enhanced process change notification

• Enhanced obsolescence management

• Eliminates need for up-screening a COTS component

• High ESD protection on RS-485 outputs ±16.5kV HBM

- IEC61000-4-2 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

•Hot plug - Tx output remains tri-state during power-up

• Low Tx leakage allows >256 devices on the Bus

• High data rates. . . . . . . . . . . . . . . . . . . . . . . . . . up to 16Mbps

• 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 output

• 5V tolerant logic input when VCC ≤5V

TABLE 1. SUMMARY OF FEATURES

PART

NUMBER

FUNCTION

DATA RATE

(Mbps)

SLEW-RATE

LIMITED?

HOT

PLUG?

VL

PIN?

TX

ENABLE?

MAXIMUM

QUIESCENT ICC

(µA)

LOW POWER

SHUTDOWN?

PIN

COUNT

ISL3298EMRTEP

1 Tx

16

NO

YES

YES

YES

150

YES

8-TDFN