HCPL-7520-300E Avago Technologies US Inc., HCPL-7520-300E Datasheet - Page 11
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HCPL-7520-300E
Manufacturer Part Number
HCPL-7520-300E
Description
OPTOCOUPLER, ANALOG, 3750VRMS
Manufacturer
Avago Technologies US Inc.
Datasheet
1.HCPL-7520-000E.pdf
(16 pages)
Specifications of HCPL-7520-300E
No. Of Channels
1
Optocoupler Output Type
Analog
Input Current
16mA
Output Voltage
6V
Opto Case Style
SMD
No. Of Pins
8
Operating Temperature Range
-40°C To +85°C
Isolation Voltage
3.75kV
Amplifier Type
Isolation
Number Of Circuits
1
-3db Bandwidth
100kHz
Current - Input Bias
600nA
Voltage - Input Offset
600µV
Current - Supply
11.7mA
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
Bandwidth
100kHz
Common Mode Ratio
15000
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Slew Rate
-
Gain Bandwidth Product
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HCPL-7520-300E
Manufacturer:
AVAGO
Quantity:
1 400
Part Number:
HCPL-7520-300E
Manufacturer:
AVAGO/安华高
Quantity:
20 000
Application Information
Power Supplies and Bypassing
The recommended supply connections are shown in
Figure 16. A floating power supply (which in many ap-
plications could be the same supply that is used to
drive the high-side power transistor) is regulated to 5 V
using a simple zener diode (D1); the value of resistor 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-7520 through an RC anti-aliasing filter (R2 and
C2). Although the application circuit is relatively simple,
a few recom- mendations should be followed to ensure
optimal performance.
The power supply for the HCPL -7520 is most often
obtained from the same supply used to power the
power transistor gate drive circuit. If a dedicated supply
is required, in many cases it is possible to add an ad-
ditional winding on an existing transformer. Otherwise,
some sort of simple isolated supply can be used, such
as a line powered transformer or a high-frequency DC-
DC converter.
Figure 16. Recommended supply and sense resistor connections.
11
MOTOR
R
+
SENSE
R1
-
HV+
HV-
GATE DRIVE
39 Ω
CIRCUIT
R2
5.1 V
D1
R4
0.1 µF
C1
0.01 µF
+
-
C2
FLOATING
POSITIVE
SUPPLY
An inexpensive 78L05 three-terminal regulator can also
be used to reduce the floating supply voltage to 5 V. To
help attenuate high- frequency power supply noise or
ripple, a resistor or inductor can be used in series with
the input of the regulator to form a low-pass filter with
the regulator’s input bypass capacitor.
1
2
3
4
V
V
V
GND1
DD1
IN+
IN-
HCPL-7520