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参数资料
| 型号： | ISL4485EIB |
| 厂商： | INTERSIL CORP |
| 元件分类： | 通用总线功能 |
| 英文描述： | 【15kV ESD Protected, 20Mbps, 5V, Low Power, RS-485/RS-422 Transceiver |
| 中文描述： | LINE TRANSCEIVER, PDSO8 |
| 封装： | PLASTIC, MS-012AA, SOIC-8 |
| 文件页数： | 8/11页 |
| 文件大小： | 403K |
| 代理商： | ISL4485EIB |
8
temperature drops about 15 degrees. If the contention
persists, the thermal shutdown / reenable cycle repeats until
the fault is cleared. Receivers stay operational during
thermal shutdown.
ESD Protection
All pins on these interface devices include class 3 Human
Body Model (HBM) ESD protection structures, but the
RS-485 pins (driver outputs and receiver inputs) incorporate
advanced structures allowing them to survive ESD events in
excess of
±
15kV HBM. The RS-485 pins are particularly
vulnerable to ESD damage because they typically connect to
an exposed port on the exterior of the finished product.
Simply touching the port pins, or connecting a cable, can
cause an ESD event that might destroy unprotected ICs.
These new ESD structures protect the device whether or not
it is powered up, protect without allowing any latchup
mechanism to activate, and without degrading the RS-485
common mode range of -7V to +12V. This built-in ESD
protection eliminates the need for board level protection
structures (e.g., transient suppression diodes), and the
associated, undesirable capacitive load they present.
Human Body Model Testing
As the name implies, this test method emulates the ESD
event delivered to an IC during human handling. The tester
delivers the charge stored on a 100pF capacitor through a
1.5k
current limiting resistor into the pin under test. The
HBM method determines an ICs ability to withstand the ESD
events typically present during handling and manufacturing.
The RS-485 pin survivability on this high ESD device has
been characterized to be in excess of
±
15kV, for discharges
to GND.
Typical Performance Curves
V
CC
= 5V, T
A
= 25
o
C; Unless Otherwise Specified
FIGURE 7. DRIVER AND RECEIVER WAVEFORMS DRIVING
300 FEET OF CABLE (DOUBLE TERMINATED)
FIGURE 8. DRIVER AND RECEIVER WAVEFORMS DRIVING
450 FEET OF CABLE (DOUBLE TERMINATED)
FIGURE 9. DATA RATE vs DIFFERENTIAL CAPACITANCE
FIGURE 10. SUPPLY CURRENT vs TEMPERATURE
TIME (20ns/DIV)
-3
R
1.5
3
-1.5
0
A - B
0
5
R
0
5
D
DI
RO
DRIVER+CABLE DELAY
(~450ns)
TIME (20ns/DIV)
-3
R
1.5
3
-1.5
0
A - B
0
5
R
0
5
D
DI
RO
DRIVER+CABLE DELAY
(~650ns)
DIFFERENTIAL CAPACITANCE (pF)
D
5001000 2000 3000 4000 5000 6000 7000 8000 9000 10000
0
5
10
15
20
25
30
R
DIFF
= 54
-40
0
TEMPERATURE (
o
C)
50
85
I
C
μ
A
-25
25
75
400
450
500
550
600
650
700
750
DE = V
CC
, RE = X
DE = GND, RE = X
ISL4485E
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL4485EIB-T | 功能描述:IC TXRX 1TX/1RX 5V RS-485 8-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 供应商设备封装:16-PDIP 包装:管件 |
| ISL4485EIBZ | 功能描述:RS-422/RS-485 接口 IC 8LD 15KV HBM 5V RS-485 20 MBPS TRAN RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| ISL4485EIBZ-T | 功能描述:RS-422/RS-485 接口 IC 8LD 15KV HBM 5V RS-485 20 MBPS TR RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| ISL4486 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:5V, Ultra High Speed, PROFIBUS, RS-485/RS-422 Transceivers |
| ISL4486IB | 功能描述:IC TXRX 5V RS-485 40MBPS 8-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 供应商设备封装:16-PDIP 包装:管件 |
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