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ISL33354E Datasheet, PDF (6/23 Pages) Intersil Corporation – Full fail-safe (open/short) RS-485/422 port 2 Rx
ISL33354E, ISL33357E
Absolute Maximum Ratings (TA = +25°C)
VCC to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltages
All Except A, B, RxIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V
Input/Output Voltages
A, B, RxIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -25V to +25V
Y, Z, TxOUT (Note 5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . -12.5V to +12.5V
RO, RxOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (VCC + 0.5V)
Output Short-Circuit Duration
Y, Z, TxOUT, RxOUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indefinite
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . See Specification Table on page 7
Latch-Up (per JESD78, Level 2, Class A). . . . . . . . . . . . . . . . . . . . . . . +85°C
Thermal Information
Thermal Resistance (Typical)
JA (°C/W) JC (°C/W)
28 Ld SSOP Package (Notes 7, 9) . . . . . . . . 60
36
40 Ld QFN Package (Notes 6, 8) . . . . . . . . . 32
2.5
Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . -65°C to +150°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493
Recommended Operating Conditions
Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
RS-485 Tx Load . . . . . . . . . . . . . . . . . . . . . . One or two 120Ω Terminations
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. One output at a time, IOUT ≤ 100mA for ≤10 mins.
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. JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
8. For JC, the “case temp” location is the center of the exposed metal pad on the package underside.
9. For JC, the “case temp” location is taken at the package top center.
Electrical Specifications Test Conditions: VCC = 4.5V to 5.5V, C1 - C4 = 0.1µF, unless otherwise specified. Typicals are at VCC = 5V,
TA = +25°C (Note 10). Boldface limits apply across the operating temperature range, -40°C to +85°C.
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP MIN
MAX
(°C) (Note 15) TYP (Note 15) UNIT
DC CHARACTERISTICS - RS-485 DRIVER (Port 2)
Driver Differential VOUT (No Load)
Driver Differential VOUT (with Load)
VOD1
VOD2
R = 50Ω (RS-422) (Figure 2)
R = 27Ω (RS-485) (Figure 2)
Full
-
-
VCC
V
Full
2.5
3.1
-
V
Full
2.2
2.7
5
V
Change in Magnitude of Driver
Differential VOUT for
Complementary Output States
VOD3 RD = 60Ω, R = 375Ω, VCM = -7V to 12V (Figure 2) Full
2
2.7
5
V
VOD R = 27Ω or 50Ω (Figure 2)
Full
-
0.01
0.2
V
Driver Common-Mode VOUT
Change in Magnitude of Driver
Common-Mode VOUT for
Complementary Output States
VOC
VOC
R = 27Ω or 50Ω (Figure 2) (Note 14)
R = 27Ω or 50Ω (Figure 2) (Note 14)
Full
-
-
3.1
V
Full
-
0.01
0.2
V
Driver Short-Circuit Current,
VOUT = High or Low
IOS
-7V ≤ (VY or VZ) ≤ 12V (Note 12)
Full
35
-
250
mA
Driver Three-State Output Leakage
Current (Y, Z)
IOZ
Outputs disabled,
VCC = 0V or 5.5V
VOUT = 12V Full
-
-
500
µA
VOUT = -7V
Full
-200
-
-
µA
DC CHARACTERISTICS - RS-232 DRIVER (PORT 1)
Driver Output Voltage Swing
VO
All TOUTS loaded with 3kΩ to ground
Driver Output Short-Circuit Current
IOS
VOUT = 0V
DC CHARACTERISTICS - LOGIC PINS (i.e., DRIVER AND CONTROL INPUT PINS)
Full
±5
+6/-7
-
V
Full
-60
25/-35
60
mA
Input High Voltage
VIH
Input Low Voltage
VIL
Full
2
Full
-
1.6
-
V
1.4
0.8
V
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6
FN8775.1
October 21, 2016