4
FN8037.7
June 10, 2010
Typical Operating Circuits
ISL4241E ISL4243E
26
V
CC
T1
OUT
T2
OUT
T3
OUT
T1
IN
T2
IN
T3
IN
T
1
T
2
T
3
0.1µF
+
0.1µF
+
0.1µF
12
11
6
7
10 8
28
23
27
31
V+
V-
C1+
C1-
C2+
C2-
+
0.1µF
29
30
R1
OUT
R1
IN
1
5kΩ
R2
OUT
R2
IN
217
5kΩ
R3
OUT
R3
IN
315
5kΩ
R4
OUT
R4
IN
414
5kΩ
R5
OUT
R5
IN
R
5
513
5kΩ
18
R2
OUTB
C
1
C
2
+
C
3
C
4
EN
SHDN
22
GND
21
+3.3V
+
0.1µF
19
24
V
CC
TTL/CMOS
LOGIC
RS-232
LEVELS
RS-232
LEVELS
R1
OUTB
20
R
1
R
2
R
3
R
4
LEVELS
26
V
CC
T1
OUT
T2
OUT
T3
OUT
T1
IN
T2
IN
T3
IN
T
1
T
2
T
3
0.1µF
+
0.1µF
+
0.1µF
12
11
6
7
10 8
28
23
27
31
V+
V-
C1+
C1-
C2+
C2-
+
0.1µF
29
30
R1
OUT
R1
IN
1
5kΩ
R2
OUT
R2
IN
217
5kΩ
R3
OUT
R3
IN
315
5kΩ
R4
OUT
R4
IN
414
5kΩ
R5
OUT
R5
IN
R
5
513
5kΩ
18
R2
OUTB
C
1
C
2
+
C
3
C
4
FORCEON
FORCEOFF
22
GND
21
+3.3V
+
0.1µF
19
24
V
CC
TTL/CMOS
LOGIC
RS-232
LEVELS
RS-232
LEVELS
R
1
R
2
R
3
R
4
20
INVALID
TO POWER
CONTROL
LEVELS
LOGIC
ISL4241E, ISL4243E
5
FN8037.7
June 10, 2010
Absolute Maximum Ratings Thermal Information
V
CC
to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
V+ to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
V- to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V to -7V
V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Input Voltages
T
IN
, FORCEOFF, FORCEON, EN, SHDN . . . . . . . . . -0.3V to 6V
R
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25V
Output Voltages
T
OUT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±13.2V
R
OUT
, INVALID. . . . . . . . . . . . . . . . . . . . . . . . -0.3V to V
CC
+0.3V
Short Circuit Duration
T
OUT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
ESD Rating . . . . . . . . . . . . See “ESD PERFORMANCE” on page 7
Thermal Resistance (Typical, Notes 1, 2)
θ
JA
(°C/W) θ
JC
(°C/W)
32 Ld QFN Package. . . . . . . . . . . . . . . 32 2.0
Maximum Storage Temperature Range. . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Operating Conditions
Temperature Range
ISL4241EIR, ISL4243EIR . . . . . . . . . . . . . . . . . . .-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.
NOTE:
1. θ
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, and Tech Brief TB389.
2. For θ
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Test Conditions: V
CC
= 3V to 5.5V, C
1
to C
4
= 0.1µF; Unless Otherwise Specified.
Typicals are at T
A
= +25°C
PARAMETER TEST CONDITIONS
TEMP
(°C)
MIN
(Note 4) TYP
MAX
(Note 4) UNITS
DC CHARACTERISTICS
Operating Voltage Range Full 2.7 - 5.5 V
Supply Current, Automatic
Power-down
All R
IN
Open, FORCEON = GND, FORCEOFF = V
CC
(ISL4243E Only)
25 - 3 300 nA
Full - 50 300 nA
Supply Current, Power-down All R
IN
Open, FORCEOFF = SHDN = GND 25 - 3 300 nA
Full - 50 300 nA
Supply Current,
Automatic Power-down Disabled
All Outputs Unloaded,
FORCEON = FORCEOFF
= SHDN = V
CC
, V
CC
= 3.0V
25 - 0.3 1.0 mA
Full - 0.3 1.5 mA
LOGIC AND TRANSMITTER INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold Low T
IN
, FORCEON, FORCEOFF, EN, SHDN Full - - 0.8 V
Input Logic Threshold High T
IN
, FORCEON, FORCEOFF, EN, SHDN, V
CC
= 3.6V Full 2.0 - - V
Input Leakage Current T
IN
, FORCEON, FORCEOFF, EN, SHDN Full - ±0.01 ±1.0 µA
Output Leakage Current FORCEOFF
= GND (ISL4243E) or EN = V
CC
(ISL4241E) Full - ±0.05 ±10 µA
Transmitter Input Hysteresis 25 - 0.5 - V
Output Voltage Low I
OUT
= 1.6mA Full - - 0.4 V
Output Voltage High I
OUT
= -1.0mA Full V
CC
- 0.6 V
CC
- 0.1 - V
AUTOMATIC POWER-DOWN (ISL4243E Only, FORCEON = GND, FORCEOFF = V
CC
)
Receiver Input Thresholds to
Enable Transmitters
ISL4243E Powers Up (see Figure 7) Full -2.7 - 2.7 V
Receiver Input Thresholds to
Disable Transmitters
ISL4243E Powers Down (see Figure7) Full -0.3 - 0.3 V
INVALID
Output Voltage Low I
OUT
= 1.6mA Full - - 0.4 V
INVALID Output Voltage High I
OUT
= -1.0mA Full V
CC
- 0.6 - - V
Receiver Threshold to Transmitters
Enabled Delay (t
WU
)
Full - 20 100 µs
ISL4241E, ISL4243E
6
FN8037.7
June 10, 2010
Receiver Positive or Negative
Threshold to INVALID
High Delay
(t
INVH
)
25 - 0.5 1 µs
Full - 0.9 1.5 µs
Receiver Positive or Negative
Threshold to INVALID
Low Delay
(t
INVL
)
25 - 30 50 µs
Full - 40 60 µs
RECEIVER INPUTS
Input Voltage Range Full -25 - 25 V
Input Threshold Low V
CC
= 3.0V Full - 1.0 0.6 V
Input Threshold High V
CC
= 3.6V Full 2.4 1.5 - V
Input Hysteresis 25 - 0.5 - V
Input Resistance Full 3 5 7 kΩ
TRANSMITTER OUTPUTS
Output Voltage Swing All Transmitter Outputs Loaded with 3kΩ to Ground Full ±5.0 ±5.4 - V
Output Resistance V
CC
= V+ = V- = 0V, Transmitter Output = ±2V Full 300 10M - Ω
Output Short-Circuit Current Full - ±35 ±60 mA
Output Leakage Current V
OUT
= ±12V, V
CC
= 0V or 3V to 5.5V,
Automatic Power-down or FORCEOFF
= SHDN = GND
Full - - ±25 µA
TIMING CHARACTERISTICS
Maximum Data Rate R
L
= 3kΩ, C
L
= 1000pF, One Transmitter Switching Full 250 500 - kbps
Receiver Propagation Delay Receiver Input to Receiver Output,
C
L
= 150pF
t
PHL
25 - 0.15 0.3 µs
Full - 0.2 0.35 µs
t
PLH
25 - 0.3 0.5 µs
Full - 0.35 0.55 µs
Receiver Skew t
PHL
- t
PLH
, C
L
= 150pF 25 - 120 250 ns
Full - 150 300 ns
Transmitter Propagation Delay Transmitter Input to Transmitter Output,
C
L
= 1000pF, R
L
= 3kΩ
t
PHL
25 - 0.75 1 µs
Full - 0.85 1.1 µs
t
PLH
25 - 0.8 1 µs
Full - 0.9 1.1 µs
Transmitter Skew t
PHL
- t
PLH
(Note 3), R
L
= 3kΩ, C
L
= 1000pF 25 - 50 200 ns
Full - 100 250 ns
Receiver Output Enable Time Normal Operation, R
L
= 1kΩ to 0.5V
CC
, C
L
= 15pF 25 - 200 350 ns
Full - 200 400 ns
Receiver Output Disable Time Normal Operation, R
L
= 1kΩ to 0.5V
CC
, C
L
= 15pF 25 - 350 500 ns
Full - 400 600 ns
Transmitter Output Enable Time Normal Operation, R
L
= 3kΩ, C
L
= 1000pF 25 - 25 40 µs
Full - 30 50 µs
Transmitter Output Disable Time Normal Operation, R
L
= 3kΩ, C
L
= 1000pF 25 - 2.5 4 µs
Full - 2.7 4 µs
Electrical Specifications Test Conditions: V
CC
= 3V to 5.5V, C
1
to C
4
= 0.1µF; Unless Otherwise Specified.
Typicals are at T
A
= +25°C (Continued)
PARAMETER TEST CONDITIONS
TEMP
(°C)
MIN
(Note 4) TYP
MAX
(Note 4) UNITS
ISL4241E, ISL4243E

ISL4243EIRZ

Mfr. #:
Manufacturer:
Renesas / Intersil
Description:
RS-232 Interface IC RS232 3V 3D/5R 15KV AUTODWN 32QFN IND
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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