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ISL32704EVAL2Z PDF预览

ISL32704EVAL2Z

更新时间: 2022-06-24 15:40:05
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瑞萨 - RENESAS /
页数 文件大小 规格书
14页 743K
描述
Ultra-Low EMI, Smallest Package Isolated RS-485 Transceiver

ISL32704EVAL2Z 数据手册

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DATASHEET  
ISL32704E  
FN8860  
Rev.4.00  
Feb 12, 2018  
Ultra-Low EMI, Smallest Package Isolated RS-485 Transceiver  
The ISL32704E is a galvanically isolated, differential bus  
Features  
transceiver designed for bidirectional data transmission and  
meeting the RS-485 and RS-422 standards for balanced  
communication. Each of the bus terminals, A and B, is  
protected against ±15kV ESD strikes without latch-up.  
• 4Mbps data rate  
• 2.5kV  
isolation per UL 1577  
RMS  
• 600V  
working voltage per VDE 0884  
RMS  
The device uses Giant Magnetoresistance (GMR) as isolation  
technology. A unique ceramic/polymer composite barrier  
provides excellent isolation and virtually unlimited barrier life.  
• 3V to 5V power supplies  
• Single unit load receiver input  
• Driver drives up to 150 unit loads  
The part is available in a 16 Ld QSOP package offering  
unprecedented miniaturization, and in a 16 Ld wide-body SOIC  
package providing true 8 millimeter creepage distance.  
• 50kV/µs (typical), 30kV/µs (minimum) common-mode  
transient immunity  
• 44000 years barrier life  
The ISL32704E delivers a minimum differential output voltage  
of 1.5V into a 54Ω differential load for excellent data integrity  
over long cable lengths.  
• 15kV ESD bus-pin protection  
• Thermal shutdown protection  
• -40°C to +85°C temperature range  
• Meets or exceeds ANSI RS-485  
• 16 Ld QSOP and 0.3” true 8mm 16 Ld SOIC packages  
• UL 1577 recognized  
The device is compatible with 3V and 5V input supplies,  
allowing interface to standard microcontrollers without  
additional level shifting.  
Current limiting and thermal shutdown features protect  
against output short circuits and bus contention that may  
cause excessive power dissipation. Receiver inputs feature a  
“fail-safe if open” design, ensuring a logic high R-output if A/B  
are floating.  
• VDE V0884-10 certified  
Applications  
• Factory automation  
Related Literature  
For a full list of related documents, visit our website  
ISL32704E product page  
• Security networks  
• Building environmental control systems  
• Industrial/process control networks  
• Level translators (i.e., RS-232 to RS-485)  
Isolation  
Barrier  
Isolation  
3.3V  
5V  
5V  
3.3V  
Barrier  
100n  
100n  
100n  
100n  
1
16  
16  
1
VDD1  
VDD2  
VDD2  
VDD1  
11  
15  
12  
9
11  
15  
12  
9
VDD2X  
ISODE  
XDE  
A
VDD2X  
ISODE  
XDE  
A
2
4
5
6
2
4
5
6
542R  
135R  
542R  
R
R
RE  
DE  
D
RE  
DE  
D
120R  
10  
13  
10  
13  
B
B
ISOR  
GND2  
14  
ISOR  
GND2  
14  
GND1  
GND1  
3
3
ISL32704EIAZ  
ISL32704EIAZ  
Isolation  
Barrier  
Isolation  
3.3V  
5V  
5V  
3.3V  
Barrier  
100n  
100n  
100n  
100n  
1
16  
VDD2  
16  
VDD2  
1
542R  
135R  
VDD1  
VDD1  
3
4
5
6
3
4
5
6
R
R
12  
13  
10  
12  
13  
10  
A
A
120R  
RE  
DE  
D
RE  
DE  
D
B
B
ISODE  
ISODE  
542R  
GND1  
2,8  
GND2  
GND2  
GND1  
2,8  
9,15  
9,15  
ISL32704EIBZ  
ISL32704EIBZ  
FIGURE 1. TYPICAL ISOLATED HIGH-SPEED RS-485 APPLICATIONS  
FN8860 Rev.4.00  
Feb 12, 2018  
Page 1 of 14  

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