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HCPL-4200-000E

产品描述Logic Output Optocouplers 20mA Current Loop
产品类别光电子/LED    光电   
文件大小417KB,共13页
制造商Broadcom(博通)
标准
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HCPL-4200-000E概述

Logic Output Optocouplers 20mA Current Loop

HCPL-4200-000E规格参数

参数名称属性值
是否Rohs认证符合
包装说明0.300 INCH, ROHS COMPLIANT, DIP-8
Reach Compliance Codecompliant
ECCN代码EAR99
Base Number Matches1

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HCPL-4200
Optically Coupled 20 mA Current Loop Receiver
Data Sheet
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS
6 fully
compliant options available;
-xxxE
denotes a
lead-free
product
Description
The HCPL-4200 optocoupler is designed to operate as a
receiver in equipment using the 20 mA Current Loop. 20
mA current loop systems conventionally signal a logic
high state by transmitting 20 mA of loop current (MARK),
and signal a logic low state by allowing no more than a
few milliamperes of loop current (SPACE). Optical cou-
pling of the signal from the 20 mA current loop to the
logic output breaks ground loops and provides for a very
high common mode rejection. The HCPL-4200 aids in the
design process by providing guaranteed thresholds for
logic high state and logic low state for the current loop,
providing an LSTTL, TTL, or CMOS compatible logic in-
terface, and providing guaranteed common mode re-
jection. The buffer circuit on the current loop side of the
HCPL-4200 provides typically 0.8 mA of hysteresis which
increases the immunity to common mode and differen-
tial mode noise. The buffer also provides a controlled
amount of LED drive current which takes into account
any LED light output degradation. The internal shield al-
lows a guaranteed 1000 V/μs common mode transient
immunity.
Features
x
Data output compatible with LSTTL, TTL and CMOS
x
20 K Baud data rate at 1400 metres line length
x
Guaranteed On and Off thresholds
x
LED is protected from excess current
x
Input threshold hysteresis
x
Three-state output compatible with data buses
x
Internal shield for high Common Mode Rejection
x
Safety approval
UL recognized -3750 V rms, for 1 minute
CSA approved
x
Optically coupled 20 mA current loop transmitter,
HCPL-4100, also available
Applications
x
Isolated 20 mA current
x
Loop receiver in:
Computer peripherals
Industrial control equipment
Data communications equipment
Functional Diagram
A 0.1 μF bypass capacitor connected between pins 8 and 5 is recommended.
CAUTION: It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and/or degradation which may be induced by ESD.
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