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PDF HCPL-7510 Data sheet ( Hoja de datos )
| Número de pieza | HCPL-7510 | |
| Descripción | Isolated Linear Sensing IC | |
| Fabricantes | Agilent Technologies | |
| Logotipo |  |
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Agilent HCPL-7510
Isolated Linear Sensing IC
Data Sheet
Description
The HCPL-7510 isolated linear
current sensing IC family is
designed for current sensing in
low-power electronic motor
drives. In a typical
implementation, motor current
flows through an external
resistor and the resulting
analog voltage drop is sensed
by the HCPL-7510. An output
voltage is created on the other
side of the HCPL-7510 optical
isolation barrier. This single-
ended output voltage is
proportional to the motor
current. Since common-mode
voltage swings of several
hundred volts in tens of
nanoseconds are common in
modern switching inverter
motor drives, the HCPL-7510
was designed to ignore very
high common-mode transient
slew rates (of at least 10 kV/
µs).
The high CMR capability of the
HCPL-7510 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.
Functional Diagram
IDD1
VDD1 1
IDD2
8 VDD2
VIN+ 2
VIN– 3
+
–
+ 7 VOUT
– 6 VREF
GND1 4
SHIELD
5 GND2
The product can also be used
for general analog signal
isolation applications. For
general applications, we
recommend the HCPL-7510
(gain tolerance of ±5%). The
HCPL-7510 utilizes sigma delta
(S-D) analog-to-digital
converter technology to
delivery offset and gain
accuracy and stability over
time and temperature. This
performance is delivered in a
compact, auto-insert, 8-pin
DIP package that meets world-
wide regulatory safety
standards. (A gull-wing
surface mount option #300 is
also available).
Features
• 15 kV/µs common-mode rejection
at Vcm = 1000 V
• Compact, auto-insertable 8-pin
DIP package
• 60 ppm/°C gain drift vs.
temperature
• –0.6 mV input offset voltage
• 8 µV/°C input offset voltage vs.
temperature
• 100 kHz bandwidth
• 0.06% nonlinearity, single-ended
amplifier output for low power
application.
• Worldwide safety approval:
UL 1577 (3750 Vrms/1 min.), CSA
and IEC/EN/DIN EN 60747-5-2
(Option 060 only)
• Advanced sigma-delta (Σ-∆)
A/D converter technology
Applications
• Low-power inverter current
sensing
• Motor phase and rail current
sensing
• Switched mode power supply
signal isolation
• General purpose low-power
current sensing and monitoring
• General purpose analog signal
isolation
wwCwA.DUTaItOaNS:hIteiest4adUv.icsoedmthat 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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Regulatory Information
The HCPL-7510 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.
UL
Approved under UL 1577, component recognition
program up to VISO = 3750 VRMS. File E55361.
CSA
Approved under CSA Component Acceptance
Notice #5, File CA 88324.
IEC/EN/DIN EN 60747-5-2 Insulation Characteristics[1]
Description
Installation classification per DIN EN 0110-1/1997-04, Table 1
for rated mains voltage - 150 Vrms
for rated mains voltage - 300 Vrms
for rated mains voltage - 600 Vrms
Climatic Classification
Pollution Degree (DIN EN 0110-1/1997-04)
Maximum Working Insulation Voltage
Input to Output Test Voltage, Method b[2]
VIORM x 1.875 = VPR, 100% production test with tm = 1 sec, partial discharge <5 pC
Input to Output Test Voltage, Method a[2]
VIORM x 1.5 = VPR, type and sample test, tm = 60 sec, partial discharge <5 pC
Highest Allowable Overvoltage (transient overvoltage tini = 10 sec)
Safety-limiting values – maximum values allowed in the event of a failure.
Case Temperature
Input Current[3]
Output Power[3]
Insulation Resistance at TS, VIO = 500 V
Symbol Characteristic Unit
VIORM
I – IV
I – III
I – II
55/100/21
2
891
Vpeak
VPR 1670
Vpeak
VPR
VIOTM
1336
6000
Vpeak
Vpeak
TS 175
IS, INPUT 400
PS, OUTPUT 600
RS >109
°C
mA
mW
Ω
Notes:
1. Insulation characteristics are guaranteed only within the safety maximum ratings which must be
ensured by protective circuits within the application. Surface Mount Classifications is Class A in
accordance with CECC00802.
2. Refer to the optocoupler section of the Isolation and Control Components Designer’s Catalog,
under Product Safety Regulations section,
(IEC/EN/DIN EN 60747-5-2) for a detailed description of Method a and Method b partial
discharge test profiles.
3. Refer to the following figure for dependence of PS and IS on ambient temperature.
800
700 PS (mW)
IS (mA)
600
500
400
300
200
100
0
0 25 50 75 100 125 150 175 200
TS – CASE TEMPERATURE – C
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Application Information
Power Supplies and Bypassing
The recommended supply
connections are shown in
Figure 16. A floating power
supply (which in many
applications 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-7510
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.
The power supply for the
HCPL-7510 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 additional 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.
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.
HV+
GATE DRIVE
CIRCUIT
+
FLOATING
POSITIVE
SUPPLY
-
R4
MOTOR
+ R1 -
RSENSE
D1
5.1 V
R2
39 Ω
C1
0.1 µF
C2
0.01 µF
1 VDD1
2 VIN+
HCPL-7510
3 VIN-
4 GND1
HV-
Figure 16. Recommended supply and sense resistor connections.
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| PDF Descargar | [ Datasheet HCPL-7510.PDF ] | |
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