Manufacturer Part No: HCNRE. Order Code: Technical Datasheet: HCNRE Datasheet. See all Technical Docs. Broadcom HCNRE: available from 15 distributors. Explore Optoelectronics on Octopart: the fastest source for datasheets, pricing, specs and . HCNR/HCNR is UL Recognized with Vrms for 1 minute per UL . Mount. Wing & Reel 1 Minute rating VIORM = Vpeak. Quantity. E.
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This allows the designer to make perf- ormance trade-off s that would otherwise be diffi cult Example Application Eatasheet The circuit shown in Figure 16 is a high-speed low-cost circuit designed for use in the feedback path of switchmode power supplies.
Diodes D1 and D2 help reduce hcr201-000e distortion by keeping both amplifiers active during both positive and negative portions of the input signal. Precision analog isolation amplifier. The input terminals of the op-amps and the photodiodes are connected in the circuit using Kelvin connections to help ensure the accuracy of the circuit.
Protective cut-out switches must be used to ensure that the safety limits are not exceeded.
Parameter Symbol Device Min. Input photodiode CTR vs. All other trademarks are the property of their respective owners. This output current generates a voltage across R3, which is then sensed by R2.
Data Sheet HCNR200 and HCNR201 High-Linearity Analog Optocouplers
CNR fig 8 Download datasheet Kb Share this page. Option datasheets are available. The lower gains, higher input currents and higher offset voltages affect the accuracy of the circuit, but not the way it operates. Because a photodiode can conduct current in only one direction, two diodes D1 and D2 are used to steer the input current to the appropriate terminal of input photodiode PD1 to allow bipolar input currents.
Contact your Avago sales representative or authorized distributor for information. Units Test Conditions Fig. Device considered a two-terminal device: IPD1 is equal to the current in R1 and is given by the following equation: However, an additional amplifier is used to provide an appropriate offset voltage to the other amplifiers that exactly cancels the diode voltage drops to maintain circuit accuracy.
As in the simpler circuits, the input amplifier adjusts the LED current so that both of its input terminals are at the same voltage. hcnr201-00e
HCNR datasheet & applicatoin notes – Datasheet Archive
The fi nal circuit shown in Figure 19 isolates a bipolar analog signal using only one optocoupler and generates two output signals: LED forward voltage vs. Isolator for thermo couples 4 mA to 20 mA loop isola. RoHS 6 fully compliant options available.
The output circuit does not directly generate an output voltage which is sensed by R2, it instead hcnd201-000e Q1 to generate an output current which flows through R3. Loop-powered mA current loop circuits.
High Speed High Precision 1. The feedback hcn2r01-000e acts to stabilize and linearize the light output of the LED. Elcodis is a trademark of Elcodis Company Ltd. The output photodiode produces a photocur rent. Dtaasheet Clearance L IO1 9. Page 3 Package Outline Drawings Because the basic circuit operation has not changed, the circuit still has good gain stability.
A Parameter Symbol Input-Output External Creepage L IO2 Package Outline Drawings For product information and a complete list of distributors, please go to our website: The relationship between the input optical power and the output current of a photodiode is very linear.
The basic optocoupler con- sists of an LED and two photodiodes. Datasyeet 19 The fi nal circuit shown in Figure 19 isolates a bipolar analog signal using only one optocoupler and generates two output signals: Option datasheets are available.
Test Parameter Symbol Device Min. Also notice that IPD1 is exactly proportional to VIN, giving a very linear relationship between the input voltage and the photodiode current.
The first circuit has the obvious advantage of requiring only one optocoupler; however, the offset performance of the circuit is dependent on the matching of IOS1 and IOS2 and is also dependent on the gain of the optocoupler. IORM peak Example 2: Gull Wing Surface Mount Option Specific performance will depend on circuit topology and components. Datasheeg the high-speed circuit discussed above, the ycnr201-000e and output circuits are stabilized by reducing the local loop gains of the input and output circuits.
Example Application Circuits The circuit shown K3 is calculated from the slope of the best fit line of IPD2 vs. An analysis similar to the one above yields the following expression relating output current to input voltage: HCNR fig 2 adtasheet.