HP HCPL-7800B, HCPL-7800A, HCPL-7800 Datasheet

1-216

H

High CMR Isolation Amplifiers

Technical Data

HCPL-7800
HCPL-7800A
HCPL-7800B

applications, we recommend the
HCPL-7800 which exhibits a
part-to-part gain tolerance of
± 5%. For precision applications,
HP offers the HCPL-7800A and
HCPL-7800B, each with part-to­part gain tolerances of ± 1%.

The HCPL-7800 utilizes sigma­delta (Σ∆) analog-to-digital
converter technology, chopper
stabilized amplifiers, and a fully
differential circuit topology
fabricated using HP’s 1 µm
CMOS IC process. The part also
couples our high-efficiency, high­speed AlGaAs LED to a high­speed, noise-shielded detector

• Switch-Mode Power Supply
Signal Isolation

• General Purpose Analog
Signal Isolation

• Transducer Isolation

Description

The HCPL-7800 high CMR
isolation amplifier provides a
unique combination of features
ideally suited for motor control
circuit designers. The product
provides the precision and
stability needed to accurately
monitor motor current in high­noise motor control environ­ments, providing for smoother
control (less “torque ripple”) in
various types of motor control
applications.

This product paves the way for a
smaller, lighter, easier to produce,
high noise rejection, low cost
solution to motor current
sensing. The product can also be
used for general analog signal
isolation applications requiring
high accuracy, stability and
linearity under similarly severe
noise conditions. For general

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

Features

• 15 kV/µs Common-Mode

Rejection at VCM = 1000 V*

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

• 4.6 µV/°C Offset Drift vs.
Temperature

• 0.9 mV Input Offset Voltage

• 85 kHz Bandwidth

• 0.1% Nonlinearity

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

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

• Fully Differential Circuit
Topology

• 1 µm CMOS IC Technology

Applications

• Motor Phase Current
Sensing

• General Purpose Current
Sensing

• High-Voltage Power Source
Voltage Monitoring

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

1

2

3

4

8

7

6

5

V

DD1

V

IN+

V

IN-

GND1

V

DD2

V

OUT+

V

OUT-

GND2

CMR SHIELD

I

DD1

I

DD2

I

IN

I

O

+

+

--

5965-3592E

1-217

Ordering Information:

HCPL-7800x

No Specifier = ± 5% Gain Tol.; Mean Gain Value = 8.00
A = ± 1% Gain Tol.; Mean Gain Value = 7.93
B = ± 1% Gain Tol.; Mean Gain Value = 8.07

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.

using our patented “light-pipe”
optocoupler packaging
technology.

Together, these features deliver
unequaled isolation-mode noise

rejection, as well as excellent
offset and gain accuracy and
stability over time and tempera­ture. This performance is
delivered in a compact, auto­insertable, industry standard 8-

Package Outline Drawings

Standard DIP Package

pin DIP package that meets
worldwide regulatory safety
standards (gull-wing surface
mount option #300 also
available).

9.40 (0.370)

9.90 (0.390)

PIN ONE

1.78 (0.070) MAX.

1.19 (0.047) MAX.

HP 7800



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)

* TYPE NUMBER FOR: HCPL-7800 = 7800

1

2

3

4

8

7

6

5

5678

4321

GND1

V

DD1

V

IN+

V

IN–

GND2

V

DD2

V

OUT+

V

OUT–

PIN DIAGRAM

PIN ONE

TYPE NUMBER*

HCPL-7800A = 7800A
HCPL-7800B = 7800B

DIMENSIONS IN MILLIMETERS AND (INCHES).

1-218

Maximum Solder Reflow Thermal Profile

240

∆T = 115°C, 0.3°C/SEC

0

∆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

0

260

123456789101112

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

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)

5

6

7

8

4

3

2

1

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):


* REFER TO OPTION 300 DATA SHEET FOR MORE INFORMATION.


xx.xx = 0.01
xx.xxx = 0.005


HP 7800



YYWW

MOLDED

LEAD COPLANARITY 
MAXIMUM: 0.102 (0.004)

1-219

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

PR

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

PR

1273 V peak

VPR = 1.5 x V

IORM

, Type and sample test with tp = 60 sec,

Partial discharge < 5 pC

Highest Allowable Overvoltage**
(Transient Overvoltage tTR = 10 sec) V

TR

6000 V peak

Safety-limiting values (Maximum values allowed in the event
of a failure, also see Figure 27)

Case Temperature T

S

175 °C

Input Power P

S,Input

80 mW

Output Power P

S,Output

250 mW

Insulation Resistance at TS, VIO = 500 V R

S

≥ 1x10

12

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.

Regulatory Information

The HCPL-7800 has been
approved by the following
organizations:

UL

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

CSA

Approved under CSA Component
Acceptance Notice #5, File CA

88324.

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 terminals,
(External Clearance) shortest distance through air

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

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

1-220

Absolute Maximum Ratings

Parameter Symbol Min. Max. Unit Note

Storage Temperature T

S

-55 125 °C

Ambient Operating Temperature T

A

- 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

LS

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

A

-40 85 °C2

Supply Voltages V

DD1

, V

DD2

4.5 5.5 V 3

Input Voltage V

IN+

, V

IN-

-200 200 mV 4

Output Current |IO|1mA5

1-221

DC Electrical Specifications

All specifications and figures are at the nominal operating condition of V

IN+

= 0 V, V

IN-

= 0 V, TA = 25°C, V

DD1

=

5.0 V, and V

DD2

= 5.0 V, unless otherwise noted.

Parameter Symbol Min. Typ. Max. Unit Test Conditions Fig. Note

Input Offset Voltage V

OS

-1.8 -0.9 0.0 mV 1

Input Offset Drift vs. dVOS/dT -2.1 µV/°C 1, 2 6
Temperature

Abs. Value of Input |dV

OS

/dT| 4.6 µV/°C17

Offset Drift vs. Temperature
Input Offset Drift vs. V

DD1

dVOS/dV

DD1

30 µV/V 1, 3 8

Input Offset Drift vs. V

DD2

dVOS/dV

DD2

-40 µV/V 1, 4 9

Gain (± 5% Tol.) G 7.61 8.00 8.40 -200 mV < V

IN+

< 200 mV 1, 5 10

Gain - A Version (± 1% Tol.) G

A

7.85 7.93 8.01

Gain - B Version (± 1% Tol.) G

B

7.99 8.07 8.15

Gain Drift vs. Temperature dG/dT 0.001 %/°C 5, 6 11
Abs. Value of Gain Drift vs. |dG/dT| 0.001 %/°C512

Temperature
Gain Drift vs. V

DD1

dG/dV

DD1

0.21 %/V 5, 7 13

Gain Drift vs. V

DD2

dG/dV

DD2

-0.06 %/V 5, 8 14

200 mV Nonlinearity NL

200

0.2 0.35 % 5, 9 15

200 mV Nonlinearity Drift dNL

200

/dT -0.001 % pts/°C5, 1016

vs. Temperature
200 mV Nonlinearity Drift dNL

200

/dV

DD1

-0.005 % pts/V 5, 11 17

vs. V

DD1

200 mV Nonlinearity Drift dNL

200

/dV

DD2

-0.007 % pts/V 5, 12 18

vs. V

DD2

100 mV Nonlinearity NL

100

0.1 0.25 % -100 mV< V

IN+

< 100 mV 5, 13 19

Maximum Input Voltage |V

IN+|max

300 mV 14

Before Output Clipping
Average Input Bias Current I

IN

-670 nA 15, 16 20

Input Bias Current dIIN/dT 3 nA/°C
Temperature Coefficient

Average Input Resistance R

IN

530 kΩ 15 20

Input Resistance dRIN/dT 0.38 %/°C
Temperature Coefficient

Input DC Common-Mode CMRR

IN

72 dB 21

Rejection Ratio
Output Resistance R

O

11 Ω 5

Output Resistance dR

O

/dT 0.6 %/°C

Temperature Coefficient
Output Low Voltage V

OL

1.18 V |V

IN+

| = 500 mV 14 22

Output High Voltage V

OH

3.61 V I

OUT+

= 0 A, I

OUT–

= 0 A

Output Common-Mode V

OCM

2.20 2.39 2.60 V -40°C < TA < 85°C14

Voltage 4.5 V < V

DD1

< 5.5 V

Input Supply Current I

DD1

10.7 15.5 mA 17 23

Output Supply Current I

DD2

11.6 14.5 mA V

IN+

= 200 mV, 18 24

-40° C < T

A

< 85°C

4.5 V < V

DD2

< 5.5 V

Output Short-Circuit |I

OSC

| 9.3 mA V

OUT

= 0 V or V

DD2

25

Current