HCPL-7510-E HP [Agilent(Hewlett-Packard)], HCPL-7510-E Datasheet

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HCPL-7510-E

Manufacturer Part Number
HCPL-7510-E
Description
Isolated Linear Sensing IC
Manufacturer
HP [Agilent(Hewlett-Packard)]
Datasheet
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.
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.
GND1
Agilent HCPL-7510
Isolated Linear Sensing IC
Data Sheet
Functional Diagram
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).
V
V
V
DD1
IN+
IN–
1
2
3
4
I
DD1
+
SHIELD
+
I
DD2
8
7
5
6
V
V
V
GND2
DD2
OUT
REF
Features
• 15 kV/µs common-mode rejection
• Compact, auto-insertable 8-pin
• 60 ppm/°C gain drift vs.
• –0.6 mV input offset voltage
• 8 µV/°C input offset voltage vs.
• 100 kHz bandwidth
• 0.06% nonlinearity, single-ended
• Worldwide safety approval:
• Advanced sigma-delta (Σ Σ Σ Σ Σ -∆ ∆ ∆ ∆ ∆ )
Applications
• Low-power inverter current
• Motor phase and rail current
• Switched mode power supply
• General purpose low-power
• General purpose analog signal
at Vcm = 1000 V
DIP package
temperature
temperature
amplifier output for low power
application.
UL 1577 (3750 Vrms/1 min.), CSA
and IEC/EN/DIN EN 60747-5-2
(Option 060 only)
A/D converter technology
sensing
sensing
signal isolation
current sensing and monitoring
isolation

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HCPL-7510-E Summary of contents

Page 1

... 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 ...

Page 2

... No option = Standard DIP package, 50 per tube. 300 = Gull Wing Surface Mount Option, 50 per tube. 500 = Tape and Reel Packaging Option. 060 = IEC/EN/DIN EN 60747-5-2 Option. XXXE = Lead Free Option Package Outline Drawings HCPL-7510 Standard DIP Package 9.80 ± 0.25 (0.386 ± 0.010 ...

Page 3

... HCPL-7510 Gull Wing Surface Mount Option 300 Outline Drawing 9.80 ± 0.25 (0.386 ± 0.010 7510 YYWW 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: FLOATING LEAD PROTUSION IS 0.5 mm (20 mils) MAX. ...

Page 4

Solder Reflow Temperature 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 Recommended Pb-Free IR Profile ...

Page 5

... 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. IEC/EN/DIN EN 60747-5-2 Insulation Characteristics Description Installation classification per DIN EN 0110-1/1997-04, Table 1 ...

Page 6

Insulation and Safety Related Specifications Parameter Symbol Minimum External Air Gap L(101) (clearance) Minimum External Tracking L(102) (creepage) Minimum Internal Plastic Gap (internal clearance) Tracking Resistance CTI (comparative tracking index) Isolation Group Absolute Maximum Ratings Parameter Storage Temperature Operating Temperature ...

Page 7

Electrical Specifications (DC) Unless otherwise noted, all typicals and figures are at the nominal operation conditions 4 5.0 V and T REF DD1 DD2 Operating Conditions. Parameter Symbol Input Offset Voltage ...

Page 8

Switching Specifications (AC) Over recommended operating conditions unless otherwise specified. Parameter Signal Delay (50 – 10%) IN OUT Signal Delay (50 – 50%) IN OUT Signal Delay (50 – 90%) IN ...

Page 9

I DD1 9 I DD2 8 4.5 4.7 4.9 5.1 5.3 5.5 V – SUPPLY VOLTAGE – Figure 1. Supply current vs. supply voltage. 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 -1.2 -1.4 -0.3 ...

Page 10

... REF -40 Figure 13. Propagation delay vs. temperature. 0.1 µ Figure 15. CMTI test circuit. 80 100 Tp5010 Tp5050 Tp5090 Trise - 100 T – TEMPERATURE – 78L05 IN OUT 1 0.1 µF 2 HCPL-7510 3 4 PULSE GEN. – DD2 8 0.1 µ OUT 6 V REF 5 ...

Page 11

... HV+ MOTOR SENSE HV- Figure 16. Recommended supply and sense resistor connections. 11 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 ...

Page 12

... IN C1 0.1 µF MOTOR SENSE HV- Figure 17. Recommended HCPL-7510 application circuit. 12 frequencies and interfering with the input signal. The input filter also performs an important reliability function—it reduces transient spikes from ESD events flowing through the current sensing resistor. PC Board Layout The design of the printed ...

Page 13

... Smaller sense resistance decreases power dissipation, while larger sense resistance can improve circuit accuracy by utilizing the full input range of the HCPL-7510. The first step in selecting a sense resistor is determining how much current the resistor will be sensing. The graph in Figure 18 shows the RMS ...

Page 14

... If the sense resistor is not located on the same PC board as the HCPL- 7510 circuit, a tightly twisted pair of wires can accomplish the same thing. Also, multiple layers of the PC board can be ...

Page 15

... CINPUT (A value of at least 100 pF works well.) 2.4: How do I ensure that the HCPL-7510 is not destroyed as a result of short circuit conditions which voltage drops across the sense resistor that exceed the ratings of the HCPL-7510’s inputs? Select the sense resistor so that it will have less than 5 V drop when short circuits occur ...

Page 16

... MISCELLANEOUS 5.1: How does the HCPL-7510 measure negative signals with only supply? The inputs have a series resistor for protection against large negative inputs. Normal signals are no more than 200 mV in amplitude. Such signals do not forward bias any junctions sufficiently to interfere with accurate operation of the switched capacitor input circuit ...

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