ISL4489E Datasheet, PDF (4/12 Pages) Intersil Corporation – Low Power, High Speed and Slew Rate Limited, Full Duplex, RS-485/RS-422 Transceivers

ISL4489E, ISL4491E
Absolute Maximum Ratings
V_CC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltages
DI, DE, RE . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (V_CC +0.5V)
Input/Output Voltages
A, B, Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8V to +12.5V
RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (V_CC +0.5V)
Short Circuit Duration
Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table
Thermal Information
Thermal Resistance (Typical, Note 1)
θ_JA (°C/W)
14 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . .
128
Maximum Junction Temperature (Plastic Package) . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300°C
(Lead Tips Only)
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to 85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1. θ_JA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications Test Conditions: V_CC = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at V_CC = 5V, T_A = 25°C,
Note 2
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
(°C) MIN
TYP MAX UNITS
DC CHARACTERISTICS
Driver Differential V_OUT (no load)
Driver Differential V_OUT (with load)
V_OD1
V_OD2
R = 50Ω (RS-422) (Figure 1)
R = 27Ω (RS-485) (Figure 1)
Full
-
Full
2
-
V_CC
V
3
-
V
Full 1.5
2.3
5
V
Change in Magnitude of Driver
Differential V_OUT for
Complementary Output States
∆V_OD R = 27Ω or 50Ω (Figure 1)
Full
-
0.01 0.2
V
Driver Common-Mode V_OUT
Change in Magnitude of Driver
Common-Mode V_OUT for
Complementary Output States
V_OC
∆V_OC
R = 27Ω or 50Ω (Figure 1)
R = 27Ω or 50Ω (Figure 1)
Full
-
-
3
V
Full
-
0.01 0.2
V
Logic Input High Voltage
Logic Input Low Voltage
Logic Input Current
Input Current (A, B) (Note 5)
Driver Three-State (high
impedance) Output Current (Y, Z)
Receiver Differential Threshold
Voltage
V_IH
V_IL
I_IN1
I_IN2
I_OZD
DE, DI, RE
DE, DI, RE
DI
DE, RE
DE = 0V, V_CC = 0V or
4.5 to 5.5V
-7V ≤ V_O ≤ 12V
V_IN = 12V
V_IN = -7V
V_TH -7V ≤ V_CM ≤ 12V
Full
2
-
-
V
Full 0.8
-
-
V
Full
-2
-
2
µA
Full -40
-
40
µA
Full
-
-
130 µA
Full -100
-
-
µA
Full -100
-
100 µA
Full -0.2
-
0.2
V
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State (high impedance)
Receiver Output Current
Receiver Input Resistance
No-Load Supply Current (Note 3)
Driver Short-Circuit Current,
V_O = High or Low
Receiver Short-Circuit Current
∆V_TH
V_OH
V_OL
I_OZR
V_CM = 0V
I_O = -4mA, V_ID = 200mV
I_O = -4mA, V_ID = 200mV
0.4V ≤ V_O ≤ 2.4V
R_IN
I_CC
I_OSD1
-7V ≤ V_CM ≤ 12V
ISL4489E, DE, DI, RE = 0V or V_CC
ISL4491E, DE, DI, RE = 0V or V_CC
DE = V_CC, -7V ≤ V_Y or V_Z ≤ 12V (Note 4)
I_OSR 0V ≤ V_O ≤ V_CC
25
-
70
-
mV
Full 3.5
-
-
V
Full
-
-
0.4
V
Full
-
-
±1
µA
Full
92
120
-
kΩ
Full
-
140 190 µA
Full
-
370 460 µA
Full 35
-
250 mA
Full
7
-
85
mA
4
FN6074.2