Agilent HCPL-7800A, HCPL-7800 DATA SHEET

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
proportional 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

Agilent HCPL-7800A/HCPL-7800
Isolation Amplifier

Data Sheet

Features

• 15 kV/µs Common-Mode Rejec­tion at VCM = 1000 V

• Compact, Auto-Insertable Stan­dard 8-pin DIP Package

• 0.00025 V/V/°C Gain Drift
vs. Temperature

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
Agilent 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 isolation­mode noise rejection, as well
as excellent offset and gain
accuracy and stability over
time and temperature. This
performance is delivered in a
compact, auto-insertable,
industry standard 8-pin DIP
package that meets worldwide
regulatory safety standards.
(A gull-wing surface mount
option #300 is also available).

• 0.3 mV Input Offset Voltage

• 100 kHz Bandwidth

• 0.004% Nonlinearity

• Worldwide Safety Approval: UL
1577 (3750 Vrms/1 min.) and CSA,
IEC/EN/DIN EN 60747-5-2

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

• 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

V

DD1

V

IN+

V

GND1

I

DD1

1

2

+

3

IN-

-

4

SHIELD

I

DD2

+

-

8

V

DD2

7

V

OUT+

6

V

OUT-

GND2

5

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.

Ordering Information

HCPL-7800A = ±1% Gain Tol.; Mean Gain = 8.00

HCPL-7800 = ±3% Gain Tol.; Mean Gain = 8.00

Specify Part Number followed by Option Number (if desired).

Example:

Option: #YYYY

No Option = Standard DIP package, 50 per tube

300 = Surface Mount Option

500 = Tape/Reel Packaging Option, 1k min. per reel

XXXE = Lead Free Option

Remarks: The notation “#” is used for existing products, while (new) products launched since
15th July 2001 and lead free option will use “-”

Package Outline Drawings

Standard DIP Package

9.80 ± 0.25

(0.386 ± 0.010)

A 7800

YYWW

1.19 (0.047) MAX.

3.56 ± 0.13

(0.140 ± 0.005)

1.080 ± 0.320

(0.043 ± 0.013)

DIMENSIONS IN MILLIMETERS AND (INCHES).

5678

DATE CODE

4321

1.78 (0.070) MAX.

4.70 (0.185) MAX.

2.92 (0.115) MIN.

0.65 (0.025) MAX.

2.54 ± 0.25

(0.100 ± 0.010)

0.51 (0.020) MIN.

7.62 ± 0.25

(0.300 ± 0.010)

6.35 ± 0.25

(0.250 ± 0.010)

5˚ TYP.

0.20 (0.008)

0.33 (0.013)

NOTE: FLOATING LEAD PROTRUSION IS 0.5 mm (20 mils) MAX.

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.

2

Gull Wing Surface Mount Option 300

9.80 ± 0.25

(0.386 ± 0.010)

6

7

8

LAND PATTERN RECOMMENDATION

1.016 (0.040)

5

1.19

(0.047)

MAX.

1.080 ± 0.320

(0.043 ± 0.013)

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

NOTE: FLOATING LEAD PROTRUSION IS 0.5 mm (20 mils) MAX.

1

2.54

(0.100)

BSC

A 7800

YYWW

2

6.350 ± 0.25

(0.250 ± 0.010)

3

4

1.27 (0.050)

1.780

(0.070)

MAX.

9.65 ± 0.25

(0.380 ± 0.010)

7.62 ± 0.25

10.9 (0.430)

2.0 (0.080)

(0.300 ± 0.010)

0.20 (0.008)

3.56 ± 0.13

0.33 (0.013)

(0.140 ± 0.005)

0.635 ± 0.25

(0.025 ± 0.010)

0.635 ± 0.130

12˚ NOM.

(0.025 ± 0.005)

LEAD COPLANARITY

xx.xx = 0.01

MAXIMUM: 0.102 (0.004)

xx.xxx = 0.005

3

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

TEMPERATURE (˚C)

100

3˚C + 1˚C/–0.5˚C

PREHEATING TIME
150˚C, 90 + 30 SEC.

2.5˚C ± 0.5˚C/SEC.

PEAK

TEMP.

245˚C

30

SEC.

SEC.

PEAK
TEMP.
240˚C

SOLDERING

TIME

200˚C

30

50 SEC.

PEAK

TEMP.

230˚C

TIGHT
TYPICAL
LOOSE

0

0

ROOM TEMPERATURE

50 150100 200 250

TIME (SECONDS)

Maximum Solder Reflow Thermal Profile

TIME WITHIN 5 ˚C of ACTUAL

t

T

p

217 ˚C

T

L

260 +0/-5 ˚C

RAMP-UP

3 ˚C/SEC. MAX.

smin

150 - 200 ˚C

t

s

PREHEAT

t

L

T

smax

T

TEMPERATURE (˚C)

60 to 180 SEC.

25

t 25 ˚C to PEAK

TIME (SECONDS)

NOTES:
THE TIME FROM 25 ˚C to PEAK TEMPERATURE = 8 MINUTES MAX.
T

smax

= 200 ˚C, T

smin

= 150 ˚C

PEAK TEMPERATURE

p

15 SEC.

60 to 150 SEC.

RAMP-DOWN
6 ˚C/SEC. MAX.

4

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.

UL

Approved under UL 1577, component
recognition program up to VISO = 3750 Vrms.

CSA

Approved under CSA Component Acceptance

IEC/EN/DIN EN 60747-5-2 Insulation Characteristics

[1]

Description Symbol Characteristic Unit

Installation classification per DIN VDE 0110/1.89, Table 1
for rated mains voltage -300 Vrms I-IV
for rated mains voltage -450 Vrms I-III
for rated mains voltage -600 Vrms I-II

Climatic Classification 55/100/21

Pollution Degree (DIN VDE 0110/1.89) 2

Maximum Working Insulation Voltage V

Input to Output Test Voltage, Method b
V

x 1.875 = V

IORM

100% Production Test with V

PR,

[2]

IORM

PR

891 V

1670 V

PEAK

PEAK

tm = 1 sec, Partial discharge < 5 pC

Input to Output Test Voltage, Method a
V

IORM

x 1.5 = V

Type and Sample Test, V

PR,

[2]

PR

1336 V

PEAK

tm = 60 sec, Partial discharge < 5 pC

Highest Allowable Overvoltage V
(Transient Overvoltage t

= 10 sec)

ini

IOTM

Safety-limiting values—maximum values
allowed in the event of a failure.
Case Temperature T
Input Current
Output Power

[3]

[3]

Insulation Resistance at TS, VIO = 500 V R

Notes:

1. Insulation characteristics are guaranteed only within the safety maximum ratings which must be
ensured by protective circuits within the application. Surface Mount Classification 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.

S

I

S,INPUT

P

S,OUTPUT

S

6000 V

175 °C
400 mA
600 mW

9

>10

800

S

700

600

500

400

, INPUT CURRENT - I

S

300

200

100

OUTPUT POWER - P

0

0

TA - CASE TEMPERATURE - oC

PEAK

Ω

PS (mW)

IS (mA)

12525 75 100 150

175

20050

5

Insulation and Safety Related Specifications

Parameter Symbol Value Unit Conditions

Minimum External Air Gap L(101) 7.4 mm Measured from input terminals to output
(Clearance) terminals, shortest distance through air.

Minimum External Tracking L(102) 8.0 mm Measured from input terminals to output
(Creepage) terminals, shortest distance path along body.

Minimum Internal Plastic Gap 0.5 mm Through insulation distance conductor to
(Internal Clearance) conductor, usually the straight line distance

thickness between the emitter and detector.

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

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

Absolute Maximum Ratings

Parameter Symbol Min. Max. Unit Note

Storage Temperature T

Operating Temperature T

Supply Voltage V

Steady-State Input Voltage V

S

A

DD1

IN+

, V

, V

DD2

IN-

-55 125 °C

- 40 100

0 5.5 V

-2.0 V

DD1

+0.5

2 Second Transient Input Voltage -6.0

Output Voltage V

OUT

-0.5 V

DD2

+0.5

Solder Reflow Temperature Profile See Package Outline Drawings Section

Recommended Operating Conditions

Parameter Symbol Min. Max. Unit Note

Ambient Operating Temperature T

Supply Voltage V

Input Voltage (accurate and linear) V

Input Voltage (functional) V

A

DD1

IN+

IN+

, V

, V

, V

DD2

IN-

IN-

-40 85 °C

4.5 5.5 V

-200 200 mV 1

-2 2 V

6