DataSheet.es    


PDF ISL83490 Data sheet ( Hoja de datos )

Número de pieza ISL83490
Descripción 3.3V/ Low Power/ High Speed or Slew Rate Limited/ RS-485/RS-422 Transceivers
Fabricantes Intersil Corporation　
Logotipo Intersil Corporation Logotipo



Hay una vista previa y un enlace de descarga de ISL83490 (archivo pdf) en la parte inferior de esta página.


Total 17 Páginas

No Preview Available ! ISL83490 Hoja de datos, Descripción, Manual

®
Data Sheet
ISL83483, ISL83485, ISL83488,
ISL83490, ISL83491
August 2004
FN6052.3
3.3V, Low Power, High Speed or Slew Rate
Limited, RS-485/RS-422 Transceivers
These Intersil RS-485/RS-422 devices are BiCMOS 3.3V
powered, single transceivers that meet both the RS-485 and
RS-422 standards for balanced communication. Unlike
competitive devices, this Intersil family is specified for 10%
tolerance supplies (3V to 3.6V).
The ISL83483 and ISL83488 utilize slew rate limited drivers
which reduce EMI, and minimize reflections from improperly
terminated transmission lines, or unterminated stubs in
multidrop and multipoint applications.
Data rates up to 10Mbps are achievable by using the
ISL83485, ISL83490, or ISL83491, which feature higher
slew rates.
Logic inputs (e.g., DI and DE) accept signals in excess of
5.5V, making them compatible with 5V logic families.
Receiver (Rx) inputs feature a “fail-safe if open” design,
which ensures a logic high output if Rx inputs are floating. All
devices present a “single unit load” to the RS-485 bus, which
allows up to 32 transceivers on the network.
Driver (Tx) outputs are short circuit protected, even for
voltages exceeding the power supply voltage. Additionally,
on-chip thermal shutdown circuitry disables the Tx outputs to
prevent damage if power dissipation becomes excessive.
The ISL83488, ISL83490, ISL83491 are configured for full
duplex (separate Rx input and Tx output pins) applications.
The ISL83488 and ISL83490 are offered in space saving 8
lead packages for applications not requiring Rx and Tx
output disable functions (e.g., point-to-point and RS-422).
Half duplex configurations (ISL83483, ISL83485) multiplex
the Rx inputs and Tx outputs to provide transceivers with Rx
and Tx disable functions in 8 lead packages.
Features
• Operate from a Single +3.3V Supply (10% Tolerance)
• Interoperable with 5V Logic
• High Data Rates. . . . . . . . . . . . . . . . . . . . . up to 10Mbps
• Single Unit Load Allows up to 32 Devices on the Bus
• Slew Rate Limited Versions for Error Free Data
Transmission (ISL83483, ISL83488) . . . . . .up to 250kbps
• Low Current Shutdown Mode (ISL83483, ISL83485,
ISL83491). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15nA
• -7V to +12V Common Mode Input Voltage Range
• Three State Rx and Tx Outputs (Except ISL83488,
ISL83490)
• 10ns Propagation Delay, 1ns Skew (ISL83485, ISL83490,
ISL83491)
• Full Duplex and Half Duplex Pinouts
• Current Limiting and Thermal Shutdown for driver
Overload Protection
• Pb-free available
Applications
• Factory Automation
• Security Networks
• Building Environmental Control Systems
• Industrial/Process Control Networks
• Level Translators (e.g., RS-232 to RS-422)
• RS-232 “Extension Cords”
PART
NUMBER
ISL83483
ISL83485
ISL83488
ISL83490
ISL83491
HALF/FULL
DUPLEX
Half
Half
Full
Full
Full
DATA RATE
(Mbps)
0.25
10
0.25
10
10
TABLE 1. SUMMARY OF FEATURES
SLEW-RATE RECEIVER/DRIVER QUIESCENT ICC
LIMITED?
ENABLE?
(mA)
Yes Yes
0.65
No Yes 0.65
Yes No
0.65
No No 0.65
No Yes 0.65
LOW POWER
SHUTDOWN?
Yes
Yes
No
No
Yes
PIN COUNT
8
8
8
8
14
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003, 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

1 page




ISL83490 pdf
ISL83483, ISL83485, ISL83488, ISL83490, ISL83491
Absolute Maximum Ratings
VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltages
DI, DE, RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +7V
Input/Output Voltages
A, B, Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8V to +12.5V
RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (VCC +0.5V)
Short Circuit Duration
Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Operating Conditions
Temperature Range
ISL834XXIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
Thermal Information
Thermal Resistance (Typical, Note 1)
θJA (oC/W)
8 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . .
170
8 Ld PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . .
140
14 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . .
130
14 Ld PDIP Package . . . . . . . . . . . . . . . . . . . . . . . .
105
Maximum Junction Temperature (Plastic Package) . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
(SOIC- Lead Tips Only)
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. θJA 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: VCC = 3V to 3.6V; Unless Otherwise Specified. Typicals are at VCC = 3.3V, TA = 25oC,
Note 2
PARAMETER
SYMBOL
TEST CONDITIONS
DC CHARACTERISTICS
Driver Differential VOUT (no load)
Driver Differential VOUT (with load)
Change in Magnitude of Driver
Differential VOUT for
Complementary Output States
VOD1
VOD2
∆VOD
RL = 100Ω (RS-422) (Figure 1A)
RL = 54Ω (RS-485) (Figure 1A)
RL = 60Ω, -7V ≤ VCM ≤ 12V (Figure 1B)
RL = 54Ω or 100Ω (Figure 1A)
Driver Common-Mode VOUT
Change in Magnitude of Driver
Common-Mode VOUT for
Complementary Output States
VOC
∆VOC
RL = 54Ω or 100Ω (Figure 1A)
RL = 54Ω or 100Ω (Figure 1A)
TEMP
(oC) MIN TYP MAX UNITS
Full -
Full 2
Full 1.5
Full 1.5
Full -
-
2.7
2.3
2.6
0.01
VCC
-
VCC
-
0.2
V
V
V
V
V
Full - 1.8 3 V
Full - 0.01 0.2 V
Logic Input High Voltage
Logic Input Low Voltage
Logic Input Current
Input Current (A, B)
Output Leakage Current (Y, Z)
(ISL83491)
Output Leakage Current (Y, Z)
in Shutdown Mode (ISL83491)
Receiver Differential Threshold
Voltage
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
VIH DE, DI, RE
VIL DE, DI, RE
IIN1 DE, DI
RE
Full 2 - - V
Full -
- 0.8 V
Full -2
-
2 µA
Full -25 - 25 µA
IIN2 DE = 0V, VCC = 0V or 3.6V
VIN = 12V Full
-
0.6
1 mA
VIN = -7V Full
-
-0.3 -0.8 mA
IIN3 RE = 0V, DE = 0V, VCC = 0V or 3.6V VIN = 12V Full
-
14 20 µA
VIN = -7V Full -20
-11
-
µA
IIN3 RE = VCC, DE = 0V, VCC = 0V or 3.6V VIN = 12V Full - 0.03 1 µA
VIN = -7V Full -1 -0.01
-
µA
VTH -7V ≤ VCM ≤ 12V
Full -0.2 - 0.2 V
∆VTH
VOH
VCM = 0V
IO = -4mA, VID = 200mV
VOL IO = -4mA, VID = 200mV
25 -
Full VCC -
0.4
Full -
50
-
-
- mV
-V
0.4 V
5

5 Page





ISL83490 arduino
ISL83483, ISL83485, ISL83488, ISL83490, ISL83491
Low Power Shutdown Mode (ISL83483, ISL83485,
ISL83491 Only)
These CMOS transceivers all use a fraction of the power
required by their bipolar counterparts, but the ISL83483,
ISL83485, ISL83491 include a shutdown feature that
reduces the already low quiescent ICC to a 15nA trickle.
They enter shutdown whenever the receiver and driver are
simultaneously disabled (RE = VCC and DE = GND) for a
period of at least 300ns. Disabling both the driver and the
receiver for less than 80ns guarantees that shutdown is not
entered.
Note that receiver and driver enable times increase when
these devices enable from shutdown. Refer to Notes 5-9, at
the end of the Electrical Specification table, for more
information.
Typical Performance Curves VCC = 3.3V, TA = 25oC, ISL83483 thru ISL83491; Unless Otherwise Specified
110 2.9
100 2.8
90 RDIFF = 100Ω
2.7
80
70 2.6
60 2.5
50 2.4
40
2.3
30 RDIFF = 54Ω
20 2.2
10 2.1
0
0 0.5 1 1.5 2 2.5 3 3.5
DIFFERENTIAL OUTPUT VOLTAGE (V)
FIGURE 6. DRIVER OUTPUT CURRENT vs DIFFERENTIAL
OUTPUT VOLTAGE
2
-40 -25
0 25 50
TEMPERATURE (oC)
75 85
FIGURE 7. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs
TEMPERATURE
160
140
120
Y OR Z = LOW
100
80
60
40
20
0
-20
Y OR Z = HIGH
-40
-60
-80
-100
-120
-7 -6 -4 -2 0 2 4 6
OUTPUT VOLTAGE (V)
8 10 12
FIGURE 8. DRIVER OUTPUT CURRENT vs SHORT CIRCUIT
VOLTAGE
800
ISL83483/85, DE = VCC, RE = X
750
700
ISL83483/85, DE = RE = GND; ISL83491, DE = X, RE = GND;
ISL83488/90
650
600
-40
-25
0 25 50
TEMPERATURE (oC)
75
FIGURE 9. SUPPLY CURRENT vs TEMPERATURE
85
11

11 Page







PáginasTotal 17 Páginas
PDF Descargar[ Datasheet ISL83490.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
ISL834903.3V/ Low Power/ High Speed or Slew Rate Limited/ RS-485/RS-422 TransceiversIntersil Corporation
Intersil Corporation
ISL834913.3V/ Low Power/ High Speed or Slew Rate Limited/ RS-485/RS-422 TransceiversIntersil Corporation
Intersil Corporation

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

 Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

 Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar