ISL4485E Datasheet, PDF (3/11 Pages) Intersil Corporation – ±15kV ESD Protected, 20Mbps, 5V, Low Power, RS-485/RS-422 Transceiver

ISL4485E
Absolute Maximum Ratings
V_CC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltages
DI, DE, RE . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (V_CC +0.5V)
Input / Output Voltages
A / Y, B / 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 (^oC/W)
8 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . .
170
Maximum Junction Temperature (Plastic Package) . . . . . . . 150^oC
Maximum Storage Temperature Range . . . . . . . . . -65^oC to 150^oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300^oC
(Lead Tips Only)
Operating Conditions
Temperature Range
ISL4485EIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40^oC to 85^oC
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
Typicals are at V_CC =
= 4.5V
5V, T_A
to
=
5.5V; Unless
25^oC, Note 2
Otherwise
Specified.
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
(^oC) 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)
Receiver Differential Threshold
Voltage
V_IH
DE, DI, RE
V_IL
DE, DI, RE
I_IN1
DE, DI, RE
I_IN2
DE = 0V, V_CC = 0V or V_IN = 12V
4.5 to 5.5V
V_IN = -7V
V_TH -7V ≤ V_CM ≤ 12V
Full
2
-
-
V
Full
-
-
0.8
V
Full -25
-
25
µA
Full
-
-
1
mA
Full
-
-
-0.8 mA
Full -0.2
-
0.2
V
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State (high impedance)
Receiver Output 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
25
-
70
-
mV
Full 3.5
4
-
V
Full
-
0.1
0.4
V
Full
-
-
±1
µA
Receiver Input Resistance
No-Load Supply Current, (Note 3)
R_IN
-7V ≤ V_CM ≤ 12V
I_CC
DI, RE = 0V or V_CC
DE = V_CC
DE = 0V
Full 12
25
-
kΩ
Full
-
700 900 µA
Full
-
500 565 µA
Driver Short-Circuit Current,
V_O = High or Low
Receiver Short-Circuit Current
I_OSD1 DE = V_CC, -7V ≤ V_Y or V_Z ≤ 12V, (Note 4)
I_OSR 0V ≤ V_O ≤ V_CC
Full 35
Full
7
-
250 mA
-
85
mA
3