HP HCPL-7825, HCPL-7820 Datasheet

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5965-3591E

High CMR Analog Isolation Amplifiers

Technical Data

Features

• Fast Propagation Delays for Over-Current and Fault Detection Sensing

• High Common Mode Rejection (CMR): 30 kV/µs at VCM = 1000 V*

• 3% Gain Tolerance: HCPL-7820 5% Gain Tolerance: HCPL-7825

• 0.05% Nonlinearity

• Low Offset Voltage and Offset Drift vs. Temperature

• 200 kHz Bandwidth

• Performance Specified for Common Motor Control Applications over -40°C to 100°C Temperature Range

• Worldwide Safety and Regulatory Approval: UL 1577 (3750 V rms/1 Min), VDE 0884 and CSA

• Compact Auto-Insertable Standard 8-Pin DIP Package

• Advanced Sigma-Delta (Σ∆) A/D Converter Technology

• 1 µm CMOS IC Technology

Applications

• Motor Phase and Rail Current Sensing

• General Purpose Current Sensing and Monitoring

• High-Voltage Monitoring

• Switched Mode Power Supply Signal Isolation

• General Purpose Analog Signal Isolation

• Transducer Isolation

Description

The HCPL-7820/7825 high CMR isolation amplifier consists of a sigma-delta analog-to-digital converter optically coupled to an integrated output digital-to-analog converter. When used with a shunt resistor in the current path, the HCPL-7820/7825 provides a cost-effective, auto-insertion compatible current sense solution. Fast propagation delays allow this part to be used in either motor drive or inverter applications for either phase current monitoring or rail current fault detection applications. High isolation mode

*The terms common-mode rejection (CMR) and isolation-mode rejection (IMR) are used interchangeably throughout this data sheet.

A 0.1 µF bypass capacitor must be connected between pins 1 and 4 and between pins 5 and 8.

rejection makes this product suitable for noisy electrical environments, such as those generated by the high switching rates of power IGBTs. Low offset voltage together with low offset change vs. temperature permits accurate use of auto-calibration techniques. Tight gain tolerance with good nonlinearity further provide the characteristics needed to insure highly accurate motor speed control. A high operating temperature range with specified performance parameters allow

HCPL-7820 HCPL-7825

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.

Functional Diagram

DD1

IN+

IN–

GND1

DD2

OUT+

OUT–

GND2

–

CMR SHIELD

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this device to be used in hostile industrial environments. This performance is delivered in an auto-insertable, industry standard

Ordering Information

HCPL-782x

0 = ± 3% Gain Tolerance 5 = ± 5% Gain Tolerance

Option yyy

300 = Gull Wing Surface Mount Lead Option 500 = Tape/Reel Package Option (1 k min.)

Option datasheets available. Contact your Hewlett-Packard sales representative or authorized distributor for information.

Package Outline Drawings

Standard DIP Package

9.40 (0.370)

9.90 (0.390)

PIN ONE

1.78 (0.070) MAX.

1.19 (0.047) MAX.

HP 7820



YYWW

DATE CODE

0.76 (0.030)

1.24 (0.049)

2.28 (0.090)

2.80 (0.110)

0.51 (0.020) MIN.

0.65 (0.025) MAX.

4.70 (0.185) MAX.

2.92 (0.115) MIN.

6.10 (0.240)

6.60 (0.260)

0.20 (0.008)

0.33 (0.013)

5° TYP.

7.36 (0.290)

7.88 (0.310)

DIMENSIONS IN MILLIMETERS AND (INCHES).

5678

4321

GND1

DD1

IN+

IN–

GND2

DD2

OUT+

OUT–

PIN DIAGRAM

PIN ONE

TYPE NUMBER

8-pin DIP package that meets major worldwide regulatory and safety approval ratings to help

ensure that your equipment can be certified in many geographic areas.

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Gull Wing Surface Mount Option 300*

0.635 ± 0.25

(0.025 ± 0.010)

12° NOM.

0.20 (0.008)

0.33 (0.013)

9.65 ± 0.25

(0.380 ± 0.010)

0.51 ± 0.130

(0.020 ± 0.005)

7.62 ± 0.25

(0.300 ± 0.010)

9.65 ± 0.25

(0.380 ± 0.010)

6.350 ± 0.25

(0.250 ± 0.010)

1.02 (0.040)

1.19 (0.047)

1.19 (0.047)

1.78 (0.070)

9.65 ± 0.25

(0.380 ± 0.010)

4.83

(0.190)



TYP.

0.380 (0.015)

0.635 (0.025)

PIN LOCATION (FOR REFERENCE ONLY)

1.080 ± 0.320

(0.043 ± 0.013)

4.19

(0.165)

MAX.

1.780

(0.070)

MAX.

1.19

(0.047)

MAX.

2.540

(0.100)

BSC

DIMENSIONS IN MILLIMETERS (INCHES). TOLERANCES (UNLESS OTHERWISE SPECIFIED):  

xx.xx = 0.01 xx.xxx = 0.005 

HP 7820



YYWW

MOLDED

LEAD COPLANARITY  MAXIMUM: 0.102 (0.004)

*Refer to Option 300 Data Sheet for more information.

Maximum Solder Reflow Thermal Profile

240

∆T = 115°C, 0.3°C/SEC

∆T = 100°C, 1.5°C/SEC

∆T = 145°C, 1°C/SEC

TIME – MINUTES

TEMPERATURE – °C

220 200 180 160 140 120 100

80 60 40 20

260

123456789101112

(NOTE: USE OF NON-CHLORINE ACTIVATED FLUXES IS RECOMMENDED.)

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Regulatory Information

The HCPL-7820/7825 has been approved by the following organizations:

Recognized under UL 1577, Component Recognition Program, FILE E55361.

CSA

Approved under CSA Component Acceptance Notice #5, File CA

88324.

VDE 0884 (06.92) Insulation Characteristics

Description Symbol Characteristic Unit

Installation classification per DIN VDE 0110, Table 1

for rated mains voltage ≤ 300 V rms I-IV for rated mains voltage ≤ 600 V rms I-III

Climatic Classification 40/100/21 Pollution Degree (DIN VDE 0110, Table 1)* 2 Maximum Working Insulation Voltage V

IORM

848 V peak

Input to Output Test Voltage, Method b** V

1591 V peak

VPR = 1.875 x V

IORM

, Production test with tp = 1 sec,

Partial discharge < 5 pC

Input to Output Test Voltage, Method a** V

1273 V peak

VPR = 1.5 x V

IORM

, Type and sample test with tp = 60 sec,

Partial discharge < 5 pC

Highest Allowable Overvoltage** V

6000 V peak

(Transient Overvoltage tTR = 10 sec) Safety-limiting values (Maximum values allowed in the event

of a failure, also see Figure 22)

Case Temperature T

175 °C

Input Power P

S,Input

80 mW

Output Power P

S,Output

250 mW

Insulation Resistance at TS, VIO = 500 V R

≥ 1x10

Ω

*This part may also be used in Pollution Degree 3 environments where the rated mains voltage is ≤ 300 V rms (per DIN VDE 0110). **Refer to the front of the optocoupler section of the current catalog for a more detailed description of VDE 0884 and other product safety requirements.

Note: Optocouplers providing safe electrical separation per VDE 0884 do so only within the safety-limiting values to which they are qualified. Protective cut-out switches must be used to ensure that the safety limits are not exceeded.

Insulation and Safety Related Specifications

Parameter Symbol Value Units Conditions

Min. External Air Gap L(IO1) 7.4 mm Measured from input terminals to output (External Clearance) terminals, shortest distance through air

Min. External Tracking Path L(IO2) 8.0 mm Measured from input terminals to output (External Creepage) terminals, shortest distance path along body

Min. Internal Plastic Gap 0.5 mm Through insulation distance, conductor to (Internal Clearance) conductor, usually the direct distance

between the photoemitter and photodetector inside the optocoupler cavity

Tracking Resistance CTI 175 V DIN IEC 112/VDE 0303 Part 1 (Comparative Tracking Index)

Isolation Group III a Material Group (DIN VDE 0110, 1/89,

Table 1)

Option 300 – surface mount classification is Class A in accordance with CECC 00802.

VDE

Approved according to VDE 0884/06.92.

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Absolute Maximum Ratings

Parameter Symbol Min. Max. Unit Note

Storage Temperature T

-55 125 °C

Ambient Operating Temperature T

- 40 100 °C

Supply Voltages V

DD1

, V

DD2

0.0 5.5 V

Steady-State Input Voltage V

IN+

, V

IN-

-2.0 V

DD1

+0.5 V Two Second Transient Input Voltage -6.0 Output Voltages V

OUT+

, V

OUT-

-0.5 V

DD2

+0.5 V Lead Solder Temperature T

260 °C1

(1.6 mm below seating plane, 10 sec.) Reflow Temperature Profile See Package Outline Drawings Section

Recommended Operating Conditions

Parameter Symbol Min. Max. Unit Note

Ambient Operating Temperature T

-40 100 °C

Supply Voltages V

DD1

, V

DD2

4.5 5.5 V

Input Voltage V

IN+

, V

IN-

-200 200 mV 2

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