HCPL-7800A#500 Avago Technologies US Inc., HCPL-7800A#500 Datasheet

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HCPL-7800A#500

Manufacturer Part Number
HCPL-7800A#500
Description
OPTOCOUPLER AMP 100KHZ TOL 8-SMD
Manufacturer
Avago Technologies US Inc.
Datasheet

Specifications of HCPL-7800A#500

Amplifier Type
Isolation
Number Of Circuits
1
-3db Bandwidth
100kHz
Current - Input Bias
500nA
Voltage - Input Offset
300µV
Current - Supply
10.9mA
Current - Output / Channel
16mA
Voltage - Supply, Single/dual (±)
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SMD Gull Wing
No. Of Amplifiers
1
Isolation Voltage
3750Vrms
Gain Non-linearity Max
0.004%
Slew Rate
10kV/us
Supply Voltage Range
4.5V To 5.5V
Input Offset Voltage
2mV
Bandwidth
100kHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Output Type
-
Gain Bandwidth Product
-
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant, Contains lead / RoHS non-compliant

Available stocks

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Part Number:
HCPL-7800A#500HCPL-7800A
Manufacturer:
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Quantity:
21 000
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HCPL-7800A#500HCPL-7800A
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HCPL-7800A#500
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Part Number:
HCPL-7800A#500HCPL-7800A-000E
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HCPL-7800A#500HCPL-7800A-000E
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AVAGO
Quantity:
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HCPL-7800A/HCPL-7800
Isolation Amplifer
Datasheet
Description
The HCPL-7800(A) isolation amplifier family was designed
for current sensing in electronic motor drives. In a typical
implementation, motor currents flow through an external
resistor and the resulting analog voltage drop is sensed
by the HCPL-7800(A). A differential output voltage is
created on the other side of the HCPL-7800(A) optical
isolation barrier. This differential output voltage is pro-
portional to the motor current and can be converted to
a single-ended signal by using an op-amp as shown in
the recommended application circuit. Since common-
mode voltage swings of several hundred volts in tens of
nanoseconds are common in modern switching inverter
motor drives, the HCPL-7800(A) was designed to ignore
very high common-mode transient slew rates (of at least
10 kV/µs).
The high CMR capability of the HCPL-7800(A) isolation
amplifier provides the precision and stability needed to
accurately monitor motor current in high noise motor
control environ-ments, providing for smoother control
(less “torque ripple”) in various types of motor control
applications.
The product can also be used for general analog signal
isolation applications requiring high accuracy, stability,
and linearity under similarly severe noise con-ditions.
For general applications, we recommend the HCPL-7800
(gain tolerance of ±3%). For precision applications Avago
Technologies offers the HCPL-7800A with part-to-part
gain tolerance of ±1%. The HCPL-7800(A) utilizes sigma
delta (Σ−∆) analog-to-digital converter technology,
chopper stabilized amplifiers, and a fully differential
circuit topology.
Together, these features deliver unequaled isolation-
mode noise rejection, as well as excellent offset and
gain accuracy and stability over time and temperature.
This performance is delivered in a compact, auto-insert-
able, industry standard 8-pin DIP package that meets
worldwide regulatory safety standards. (A gull-wing
surface mount option #300 is also available).

RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
Lead (Pb) Free
RoHS 6 fully
compliant
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.
NOTE: A 0.1 μF bypass capacitor must be connected
between pins 1 and 4 and between pins 5 and 8.
Features
• 15 kV/µs Common-Mode Rejection at V
• Compact, Auto-Insertable Standard 8-pin DIP Pack-
• 0.00025 V/V/°C Gain Drift vs. Temperature
• 0.3 mV Input Offset Voltage
• 100 kHz Bandwidth
• 0.004% Nonlinearity
• Worldwide Safety Approval: UL 1577 (3750 Vrms/1 min.)
• Advanced Sigma-Delta (Σ−∆) A/D Converter Technol-
• Fully Differential Circuit Topology
Applications
• Motor Phase and Rail Current Sensing
• Inverter Current Sensing
• Switched Mode Power Supply Signal Isolation
• General Purpose Current Sensing and Monitoring
• General Purpose Analog Signal Isolation
Functional Diagram
age
and CSA, IEC/EN/DIN EN 60747-5-2
ogy
GND1
V
V
V
DD1
IN+
IN-
1
2
3
4
I
DD1
+
-
SHIELD
+
-
I
DD2
8
7
6
5
V
V
V
GND2
DD2
OUT+
OUT-
CM
= 1000 V

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HCPL-7800A#500 Summary of contents

Page 1

... HCPL-7800(A). A differential output voltage is created on the other side of the HCPL-7800(A) optical isolation barrier. This differential output voltage is pro- portional to the motor current and can be converted to a single-ended signal by using an op-amp as shown in the recommended application circuit ...

Page 2

... MAX. 3.56 ± 0.13 (0.140 ± 0.005) 1.080 ± 0.320 (0.043 ± 0.013) Note: Initial or continued variation in the color of the HCPL-7800(A)’s white mold compound is normal and does not affect device performance or reliability.  Surface Gull Package Mount Wing ...

Page 3

Gull Wing Surface Mount Option 300 9.80 ± 0.25 (0.386 ± 0.010 7800 YYWW 1 2 1.19 (0.047) MAX. 1.080 ± 0.320 (0.043 ± 0.013) 2.54 (0.100) BSC DIMENSIONS IN MILLIMETERS (INCHES). TOLERANCES (UNLESS OTHERWISE SPECIFIED): NOTE: ...

Page 4

Maximum Solder Reflow Thermal Profile 300 PREHEATING RATE 3˚C + 1˚C/–0.5˚C/SEC. REFLOW HEATING RATE 2.5˚C ± 0.5˚C/SEC. 200 160˚C 150˚C 140˚C 3˚C + 1˚C/–0.5˚C 100 PREHEATING TIME 150˚ SEC ROOM TEMPERATURE Note: Use of ...

Page 5

... Regulatory Information The HCPL-7800(A) has been approved by the following organizations: IEC/EN/DIN EN 60747-5-2 Approved under: IEC 60747-5-2:1997 + A1:2002 EN 60747-5-2:2001 + A1:2002 DIN EN 60747-5-2 (VDE 0884 Teil 2): 2003-01. IEC/EN/DIN EN 60747-5-2 Insulation Characteristics Description Installation classification per DIN VDE 0110/1.89, Table 1 for rated mains voltage 300 Vrms ...

Page 6

Insulation and Safety Related Specifications Parameter Minimum External Air Gap (Clearance) Minimum External Tracking (Creepage) Minimum Internal Plastic Gap (Internal Clearance) Tracking Resistance (Comparative Tracking Index) Isolation Group Absolute Maximum Ratings Parameter Storage Temperature Operating Temperature Supply Voltage Steady-State Input ...

Page 7

... Min./Max. specifications are within the Recommended Operating Conditions. DD2 A Parameter Symbol Input Offset Voltage V OS Magnitude of Input Offset |DV /DT OS Change vs. Temperature Gain (HCPL-7800A Gain (HCPL-7800 Magnitude of V |DG/DT OUT Gain Change vs.Temperature V 200 mV Nonlinearity NL OUT 200 Magnitude of V |dNL OUT 200 200 mV Nonlinearity Change vs ...

Page 8

AC Electrical Specifications Unless otherwise noted, all typicals and figures are at the nominal operating conditions and T = 25°C; all Min./Max. specifications are within the Recommended Operating Conditions. DD2 A Parameter Symbol Min. ...

Page 9

... IN+ IN- voltage for more than 1µs. The HCPL-7800(A) will continue to func- tion if more than 10 kV/µs common mode slopes are applied, as long as the breakdown voltage limitations are observed. 15. Data sheet value is the differential amplitude of the transient at the output of the HCPL-7800(A) when with 40 ns rise and fall times is applied to both V 16 ...

Page 10

... V DD1 0.38 vs. V DD2 0.37 0.36 0.35 0.34 0.33 4.5 4.75 5.0 5.25 5 SUPPLY VOLTAGE - V DD Figure 3. Input Offset vs. Supply. V DD2 8 0.1 µ HCPL-7800 0.47 µF V OUT 8.035 8.03 8.025 8.02 8.015 8.01 -55 -35 - 105 T - TEMPERATURE - ¡C A Figure 4. Gain vs. Temperature. ...

Page 11

V DD1 8.026 vs. V DD2 8.024 4.5 4.75 5.0 5.25 5 SUPPLY VOLTAGE - V DD Figure 6. Gain vs. Supply. 4.2 3.4 2.6 1 1.0 -0.5 -0.3 -0.1 ...

Page 12

... V IN Figure 15. Propagation Delay Test Circuits. 78L05 IN OUT 1 0.1 0.1 µF µ Figure 16. CMTI Test Circuits DD2 8 0.1 µ DD2 8 0.1 µ HCPL-7800 150 pF PULSE GEN +15 V 0.1 µ OUT + MC34081 0.1 µF - 150 pF +15 V 0.1 µ OUT + MC34081 0.1 µ ...

Page 13

... R4 should be chosen to supply sufficient current from the existing floating supply. The voltage from the current sensing resistor (Rsense) is applied to the input of the HCPL- 7800(A) through an RC anti-aliasing filter (R2 and C2). Although the application circuit is relatively simple, a few recommendations should be followed to ensure optimal performance ...

Page 14

... HCPL-7800(A). The bypass capacitors are required because of the high-speed digital nature of the signals inside the HCPL-7800(A). A 0.01 µF bypass capacitor (C2) is also rec- ommended at the input due to the switched-capacitor nature of the input circuit. The input bypass capacitor ...

Page 15

... The Kelvin connections to the resistor should be brought together under the body of the resistor and then run very close to each other to the input of the HCPL-7800(A); this minimizes the loop area of the connection and reduces the possibility of stray magnetic fields from interfering with the measured signal ...

Page 16

... GND1 (pin 4), with the power-supply return path functioning as the sense line to the negative terminal of the current sense resistor. This allows a single pair of wires or PC board traces to connect the HCPL- 7800(A) circuit to the sense resistor. By referencing the input circuit to the negative side of the sense resistor, ...

Page 17

... C value of at least 100 pF works well.) 2.4: How do I ensure that the HCPL-7800(A) is not de- stroyed as a result of short circuit conditions which cause voltage drops across the sense resistor that exceed the rat- ings of the HCPL-7800(A)’ ...

Page 18

... V and V is close to 3.80 V. This equivalent to the output response at the condition that LED is completely off. 5.2: How long does the HCPL-7800(A) take to begin work- ing properly after power-up? Within 1 ms after V and V DD1 DD2 starts to work. But it takes longer time for output to settle down completely ...

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