DATASHEET
ISL3293E, ISL3294E, ISL3295E ISL3296E, ISL3297E,
ISL3298E
FN6544
Rev 3.00
September 25, 2015
The Intersil ISL3293E, ISL3294E, ISL3295E, ISL3296E,
Features
ISL3297E, ISL3298E are ±16.5kV HBM ESD Protected (7kV
• 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
IEC61000 contact), 3.0V to 5.5V powered, single transmitters
for balanced communication using the RS-485 and RS-422
standards. These drivers have very low bus currents (±40mA),
so they present 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’s 32 unit load maximum, and
without using repeaters.
• Specified for +125°C operation (V ≤ 3.6V only)
CC
• Logic supply pin (V ) eases operation in mixed supply
L
systems (ISL3296E through ISL3298E only)
Hot Plug circuitry ensures that the Tx outputs remain in a high
impedance state while the power supply stabilizes.
• 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
The ISL3293E, ISL3294E, ISL3296E, ISL3297E 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
ISL3295E and ISL3298E are not limited, so they can achieve the
20Mbps data rate. All versions are offered in industrial and
extended industrial (-40°C to +125°C) temperature ranges.
• Low quiescent supply current. . . . . . . . . . . . . . . 150µA (max)
- Very low shutdown supply current . . . . . . . . . . . 1µA (max)
• -7V to +12V common-mode output voltage range
(V ≤ 3.6V only)
CC
• Current limiting and thermal shutdown for driver overload
A 26% smaller footprint is available with the ISL3296E,
ISL3297E, ISL3298E’s TDFN package. These devices also
protection (V ≤ 3.6V only)
CC
• Tri-statable Tx outputs
feature a logic supply pin (V ) that sets the switching points of
L
• 5V tolerant logic inputs when V ≤5V
the DE and DI inputs to be compatible with a lower supply
voltage in mixed voltage systems.
CC
• Pb-free (RoHS compliant)
For companion single RS-485 receivers in micro packages,
please see the ISL3280E, ISL3281E, ISL3282E, ISL3283E,
ISL3284E datasheet.
Applications
• Clock distribution
• High node count systems
• Space constrained systems
• Security camera networks
• Building environmental control/lighting systems
• Industrial/process control networks
TABLE 1. SUMMARY OF FEATURES
DATA
TX
MAXIMUM
RATE SLEW RATE HOT
V
ENABLE? QUIESCENT LOW POWER
PIN
L
PART NUMBER
FUNCTION (Mbps) LIMITED? PLUG? PIN? (Note 11)
I
(µA)
SHUTDOWN?
YES
COUNT
CC
150
ISL3293E (No longer available or supported,
recommended replacement: ISL32613E)
1 Tx
0.25
YES
YES
YES
YES
NO
NO
NO
YES
6 Ld SOT
6 Ld SOT
ISL3294E (No longer available or supported,
recommended replacement: ISL32614E)
1 Tx
0.5
YES
YES
150
YES
ISL3295E
1 Tx
1 Tx
20
NO
YES
YES
150
150
YES
YES
6 Ld SOT
ISL3296E
0.25
YES
YES YES
YES YES
YES YES
8 Ld TDFN
(No longer available or supported)
ISL3297E
1 Tx
1 Tx
0.5
20
YES
NO
YES
YES
150
150
YES
YES
8 Ld TDFN
8 Ld TDFN
(No longer available or supported)
ISL3298E
FN6544 Rev 3.00
Page 1 of 17
September 25, 2015