DATASHEET
ISL3293E, ISL3294E, ISL3295E ISL3296E, ISL3297E,
ISL3298E
The Intersil
ISL3293E, ISL3294E, ISL3295E, ISL3296E,
ISL3297E, ISL3298E
are ±16.5kV HBM ESD Protected (7kV
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.
Hot Plug circuitry ensures that the Tx outputs remain in a high
impedance state while the power supply stabilizes.
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.
A 26% smaller footprint is available with the ISL3296E,
ISL3297E, ISL3298E’s TDFN package. These devices also
feature a logic supply pin (V
L
) 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.
FN6544
Rev 3.00
September 25, 2015
Features
• 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 (V
CC
≤
3.6V only)
• Logic supply pin (V
L
) eases operation in mixed supply
systems (ISL3296E through 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
(V
CC
≤
3.6V only)
• Current limiting and thermal shutdown for driver overload
protection (V
CC
≤
3.6V only)
• Tri-statable Tx outputs
• 5V tolerant logic inputs when V
CC
≤5V
• Pb-free (RoHS compliant)
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
TX
MAXIMUM
DATA
RATE SLEW RATE HOT
V
L
ENABLE? QUIESCENT LOW POWER
I
CC
(µA)
SHUTDOWN?
FUNCTION (Mbps) LIMITED? PLUG? PIN? (Note
11)
1 Tx
1 Tx
1 Tx
1 Tx
1 Tx
1 Tx
0.25
0.5
20
0.25
0.5
20
YES
YES
NO
YES
YES
NO
YES
YES
YES
YES
YES
YES
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
150
150
150
150
150
150
YES
YES
YES
YES
YES
YES
PIN
COUNT
6 Ld SOT
6 Ld SOT
6 Ld SOT
8 Ld TDFN
8 Ld TDFN
8 Ld TDFN
PART NUMBER
ISL3293E (No longer available or supported,
recommended replacement: ISL32613E)
ISL3294E (No longer available or supported,
recommended replacement: ISL32614E)
ISL3295E
ISL3296E
(No longer available or supported)
ISL3297E
(No longer available or supported)
ISL3298E
FN6544 Rev 3.00
September 25, 2015
Page 1 of 17
ISL3293E, ISL3294E, ISL3295E ISL3296E, ISL3297E, ISL3298E
Pin Configurations
ISL3293E, ISL3294E, ISL3295E
(6 LD SOT-23)
TOP VIEW
DI 1
V
CC
2
D
6
5
4
Y
GND
Z
ISL3296E, ISL3297E, ISL3298E
(8 LD TDFN)
TOP VIEW
V
L
DE
DI
GND
1
2
3
4
D
8
7
6
5
V
CC
Z
Y
GND
DE 3
NOTE: BOTH GND PINS MUST BE CONNECTED
Truth Tables
TRANSMITTING
INPUTS
DE (Note
11)
1
1
0
NOTE: *Shutdown Mode
DI
1
0
X
Z
0
1
High-Z *
OUTPUTS
Y
1
0
High-Z *
Pin Descriptions
PIN
NAME
DE
FUNCTION
Driver output enable. The driver outputs, Y and Z, are enabled by
bringing DE high, and are high impedance when DE is low. If the
driver enable function isn’t needed, connect DE to V
CC
(or V
L
)
through a 1kΩ to 3kΩ resistor.
Driver input. A low on DI forces output Y low and output Z high.
Similarly, a high on DI forces output Y high and output Z low.
Ground connection. This is also the potential of the TDFN
thermal pad.
±15kV HBM, ±7kV IEC61000 (contact method) ESD Protected
RS-485/422 level, noninverting transmitter output.
±15kV HBM, ±7kV IEC61000 (contact method) ESD Protected
RS-485/422 level, inverting transmitter output.
System power supply input (3.0V to 5.5V). On devices with a V
L
pin powered from a separate supply, power-up V
CC
first.
Logic-level supply which sets the V
IL
/V
IH
levels for the DI and DE
pins (ISL3296E, ISL3297E, ISL3298E only). If V
L
and V
CC
are
different supplies, power-up this supply after V
CC
, and keep
V
L
≤
V
CC
.
DI
GND
Y
Z
V
CC
V
L
FN6544 Rev 3.00
September 25, 2015
Page 2 of 17
ISL3293E, ISL3294E, ISL3295E ISL3296E, ISL3297E, ISL3298E
Ordering Information
PART NUMBER
(Notes
1, 2, 3)
PART
MARKING
(Note
4)
TEMP.
RANGE
(°C)
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
PACKAGE
(RoHS
Compliant)
6 Ld SOT-23
6 Ld SOT-23
6 Ld SOT-23
6 Ld SOT-23
6 Ld SOT-23
6 Ld SOT-23
8 Ld TDFN
8 Ld TDFN
8 Ld TDFN
8 Ld TDFN
8 Ld TDFN
8 Ld TDFN
PKG.
DWG. #
P6.064
P6.064
P6.064
P6.064
P6.064
P6.064
L8.2x3A
L8.2x3A
L8.2x3A
L8.2x3A
L8.2x3A
L8.2x3A
ISL3293EFHZ-T
293F
(No longer available or supported, recommended replacement: ISL32613E)
ISL3293EIHZ-T
293I
(No longer available or supported, recommended replacement: ISL32613E)
ISL3294EFHZ-T
294F
(No longer available or supported, recommended replacement: ISL32614E)
ISL3294EIHZ-T
294I
(No longer available or supported, recommended replacement: ISL32614E)
ISL3295EFHZ-T
ISL3295EIHZ-T
ISL3296EFRTZ-T (No longer available or supported)
ISL3296EIRTZ-T (No longer available or supported)
ISL3297EFRTZ-T (No longer available or supported)
ISL3297EIRTZ-T (No longer available or supported)
ISL3298EFRTZ-T
ISL3298EIRTZ-T (No longer available or supported)
NOTES:
295F
295I
96F
96I
97F
97I
98F
98I
1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
2. Please refer to
TB347
for details on reel specifications.
3. For Moisture Sensitivity Level (MSL), please see product information page for
ISL3293E, ISL3294E, ISL3295E, ISL3296E, ISL3297E, ISL3298E.
For
more information on MSL, please see tech brief
TB363.
4. SOT-23 “PART MARKING” is branded on the bottom side.
FN6544 Rev 3.00
September 25, 2015
Page 3 of 17
ISL3293E, ISL3294E, ISL3295E ISL3296E, ISL3297E, ISL3298E
Typical Operating Circuits
+3.3V TO 5V
+
1
V
CC
ISL3281E
3 RO
5 RE
A
R
B
6
4
R
T
6
4
Y
Z
D
0.1µF
0.1µF
+
2
V
CC
ISL329xE
DI 1
DE 3
GND
2
+3.3V
GND
5
FIGURE 1. NETWORK WITH ENABLES
+3.3V TO 5V
+
1
V
CC
ISL3280E
3 RO
A
R
B
5
4
R
T
6
4
Y
Z
0.1µF
0.1µF
+
+3.3V
1kΩ TO 3kΩ
Note 10
3
2
V
CC
ISL329xE
D
DE
DI 1
GND
2
GND
5
FIGURE 2. NETWORK WITHOUT ENABLE
2.5V
6
V
L
+3.3V TO 5V
+
4
V
CC
ISL3282E
0.1µF
0.1µF
+
+3.3V
8
V
CC
ISL3298E
R
T
1.8V
1
V
L
V
CC
LOGIC
DEVICE
(µP, ASIC,
UART)
V
CC
LOGIC
DEVICE
(µP, ASIC,
UART)
1 RO
7 RE
A
R
B
5
8
6
7
Y
Z
D
DI 3
DE 2
GND
2
NOTE: IF POWERED FROM SEPARATE SUPPLIES,
POWER-UP V
CC
BEFORE V
L
GND
4, 5
FIGURE 3. NETWORK WITH VL PIN FOR INTERFACING TO LOWER VOLTAGE LOGIC DEVICES
FN6544 Rev 3.00
September 25, 2015
Page 4 of 17
ISL3293E, ISL3294E, ISL3295E ISL3296E, ISL3297E, ISL3298E
Absolute Maximum Ratings
V
CC
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
V
L
to GND (ISL3296E thru ISL3298E Only) . . . . . . . . -0.3V to (V
CC
+ 0.3V)
Input Voltages
DI, DE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
Output Voltages
Y, Z (V
CC
≤
3.6V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8V to +13V
Y, Z (V
CC
> 3.6V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to V
CC
+0.5V
Short-circuit Duration
Y, Z (V
CC
≤
3.6V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Y, Z (V
CC
> 3.6V,
Note 13)
. . . . . . . . . . . . . . . . . . . . . . . . . 1s at <300mA
ESD Rating . . . . . . . . . . . . . . . . . . See Electrical Specifications on
page 6
Thermal Information
Thermal Resistance (Typical)
JA
(°C/W)
JC
(°C/W)
6 Ld SOT-23 Package (Note
5)
. . . . . . . . . .
177
N/A
8 Ld TDFN Package (Notes
6, 7).
. . . . . . . .
65
8
Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see
TB493
Operating Conditions
Temperature Range
F Suffix (V
CC
≤
3.6V only). . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C
I Suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
5.
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief
TB379
for details.
6.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief
TB379.
7. For
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
PARAMETER
DC CHARACTERISTICS
Driver Differential V
OUT
Test Conditions: V
CC
= 3.0V to 5.5V, V
L
= V
CC
(ISL3296E, ISL3297E, ISL3298E only), typicals are at
T
A
= +25°C, unless otherwise specified. (Note
8)
SYMBOL
V
OD
TEST CONDITIONS
R
L
= 100Ω (RS-422)
(Figure
4A)
R
L
= 54Ω (RS-485)
(Figure
4A)
No load
R
L
= 60Ω, -7V
≤
V
CM
≤
12V (Figure
4B)
Change in Magnitude of Driver
Differential V
OUT
for
Complementary Output States
Driver Common-mode V
OUT
Change in Magnitude of Driver
Common-mode V
OUT
for
Complementary Output States
Input High Voltage (DI, DE)
V
OD
R
L
= 54Ω or 100Ω (Figure
4A)
V
CC
≥
3.15V
V
CC
≥
4.5V
V
CC
≥
3.0V
V
CC
≥
4.5V
TEMP
(°C)
Full
Full
Full
Full
Full
Full
Full
MIN
(Note
12)
2
3
1.5
2.5
-
1.5
-
TYP
(Note
14)
2.3
3.8
2
3.4
-
2, 3.4
0.01
MAX
(Note
12)
-
-
V
CC
V
CC
V
CC
-
0.2
V
V
UNIT
V
V
V
V
V
OC
V
OC
R
L
= 54Ω or 100Ω
(Figure
4A)
V
CC
≤
3.6V
V
CC
≤
5.5V
Full
Full
Full
-
-
-
2
-
0.01
3
3.2
0.2
V
V
V
R
L
= 54Ω or 100Ω (Figure
4A)
V
IH1
V
IH2
V
IH3
V
IH4
V
IH5
V
IH6
V
L
= V
CC
if ISL3296E,
ISL3297E, ISL3298E
V
CC
≤
3.6V
V
CC
≤
5.5V
Full
Full
Full
Full
Full
25
2.2
3
2
1.65
0.7*V
L
-
-
-
-
-
-
0.5*V
L
-
-
-
-
-
-
V
V
V
V
V
V
2.7V
≤
V
L
< 3.0V (ISL3296E, ISL3297E,
ISL3298E only)
2.3V
≤
V
L
< 2.7V (ISL3296E, ISL3297E,
ISL3298E only)
1.6V
≤
V
L
< 2.3V (ISL3296E, ISL3297E,
ISL3298E only)
1.35V
≤
V
L
< 1.6V (ISL3296E, ISL3297E,
ISL3298E only)
FN6544 Rev 3.00
September 25, 2015
Page 5 of 17
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