H
High CMR Isolation Amplifiers
Technical Data
HCPL-7800
HCPL-7800A
HCPL-7800B
Features
• 15 kV/
µ
s Common-Mode
Rejection at V
CM
= 1000 V*
• Compact, Auto-Insertable
Standard 8-pin DIP Package
• 4.6
µ
V/
°
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
µ
m CMOS IC Technology
• 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 high-
noise motor control environ-
ments, 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
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-to-
part gain tolerances of
±
1%.
The HCPL-7800 utilizes sigma-
delta (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, high-
speed AlGaAs LED to a high-
speed, noise-shielded detector
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.
Functional Diagram
V
DD1
1
I
DD1
I
DD2
8
V
DD2
V
IN+
2
I
IN
+
+
I
O
7
V
OUT+
V
IN-
3
-
-
6
V
OUT-
GND1
4
5
GND2
CMR SHIELD
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.
1-216
5965-3592E
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 tempera-
ture. This performance is
delivered in a compact, auto-
insertable, industry standard 8-
pin DIP package that meets
worldwide regulatory safety
standards (gull-wing surface
mount option #300 also
available).
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.
Package Outline Drawings
Standard DIP Package
9.40 (0.370)
9.90 (0.390)
8
7
6
5
TYPE NUMBER*
DATE CODE
6.10 (0.240)
6.60 (0.260)
7.36 (0.290)
7.88 (0.310)
0.20 (0.008)
0.33 (0.013)
HP 7800
YYWW
PIN ONE
1.19 (0.047) MAX.
1
2
3
4
5° TYP.
1.78 (0.070) MAX.
4.70 (0.185) MAX.
PIN ONE
0.51 (0.020) MIN.
2.92 (0.115) MIN.
1
2
3
0.76 (0.030)
1.24 (0.049)
0.65 (0.025) MAX.
2.28 (0.090)
2.80 (0.110)
DIMENSIONS IN MILLIMETERS AND (INCHES).
4
PIN DIAGRAM
V
DD1
V
IN+
V
IN–
V
DD2
8
V
OUT+
7
V
OUT–
6
GND1 GND2 5
* TYPE NUMBER FOR: HCPL-7800 = 7800
HCPL-7800A = 7800A
HCPL-7800B = 7800B
1-217
OPTOCOUPLERS
Gull Wing Surface Mount Option 300*
PIN LOCATION (FOR REFERENCE ONLY)
9.65 ± 0.25
(0.380 ± 0.010)
8
7
6
5
1.02 (0.040)
1.19 (0.047)
4.83 TYP.
(0.190)
HP 7800
YYWW
6.350 ± 0.25
(0.250 ± 0.010)
9.65 ± 0.25
(0.380 ± 0.010)
MOLDED
1
2
3
4
1.19 (0.047)
1.78 (0.070)
1.780
(0.070)
MAX.
9.65 ± 0.25
(0.380 ± 0.010)
7.62 ± 0.25
(0.300 ± 0.010)
0.380 (0.015)
0.635 (0.025)
1.19
(0.047)
MAX.
4.19 MAX.
(0.165)
0.20 (0.008)
0.33 (0.013)
1.080 ± 0.320
(0.043 ± 0.013)
2.540
(0.100)
BSC
0.51 ± 0.130
(0.020 ± 0.005)
0.635 ± 0.25
(0.025 ± 0.010)
12° NOM.
DIMENSIONS IN MILLIMETERS (INCHES).
TOLERANCES (UNLESS OTHERWISE SPECIFIED): xx.xx = 0.01
xx.xxx = 0.005
* REFER TO OPTION 300 DATA SHEET FOR MORE INFORMATION.
LEAD COPLANARITY
MAXIMUM: 0.102 (0.004)
Maximum Solder Reflow Thermal Profile
260
240
220
200
180
160
140
120
100
80
60
40
20
0
0
∆T
= 145°C, 1°C/SEC
∆T
= 115°C, 0.3°C/SEC
TEMPERATURE – °C
∆T
= 100°C, 1.5°C/SEC
1
2
3
4
5
6
7
8
9
10
11
12
TIME – MINUTES
(NOTE: USE OF NON-CHLORINE ACTIVATED FLUXES IS RECOMMENDED.)
1-218
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.
VDE
Approved according to VDE
0884/06.92.
Insulation and Safety Related Specifications
Parameter
Min. External Air Gap
(External Clearance)
Min. External Tracking
Path (External Creepage)
Min. Internal Plastic Gap
(Internal Clearance)
Tracking Resistance
(Comparative Tracking
Index)
Isolation Group
Symbol
L(IO1)
L(IO2)
Value Units
7.4
mm
8.0
0.5
mm
mm
Conditions
Measured from input terminals to output terminals,
shortest distance through air
Measured from input terminals to output terminals,
shortest distance path along body
Through insulation distance, conductor to conductor,
usually the direct distance between the photoemitter
and photodetector inside the optocoupler cavity
DIN IEC 112/VDE 0303 Part 1
CTI
175
V
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 0884 (06.92) Insulation Characteristics
Description
Installation classification per DIN VDE 0110, Table 1
for rated mains voltage
≤
300 V rms
for rated mains voltage
≤
600 V rms
Climatic Classification
Pollution Degree (DIN VDE 0110, Table 1)*
Maximum Working Insulation Voltage
Input to Output Test Voltage, Method b**
V
PR
= 1.875 x V
IORM
, Production test with t
p
= 1 sec,
Partial discharge < 5 pC
Input to Output Test Voltage, Method a**
V
PR
= 1.5 x V
IORM
, Type and sample test with t
p
= 60 sec,
Partial discharge < 5 pC
Highest Allowable Overvoltage**
(Transient Overvoltage t
TR
= 10 sec)
Safety-limiting values (Maximum values allowed in the event
of a failure, also see Figure 27)
Case Temperature
Input Power
Output Power
Insulation Resistance at T
S
, V
IO
= 500 V
Symbol
Characteristic
I-IV
I-III
40/100/21
2
848
1591
Unit
V
IORM
V
PR
V
peak
V
peak
V
PR
1273
V
peak
V
TR
6000
V
peak
°C
mW
mW
Ω
T
S
P
S,Input
P
S,Output
R
S
175
80
250
≥
1x10
12
*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.
1-219
OPTOCOUPLERS
Regulatory Information
Absolute Maximum Ratings
Parameter
Storage Temperature
Ambient Operating Temperature
Supply Voltages
Steady-State Input Voltage
Two Second Transient Input Voltage
Output Voltages
Lead Solder Temperature
(1.6 mm below seating plane, 10 sec.)
Reflow Temperature Profile
Symbol
T
S
T
A
V
DD1
, V
DD2
V
IN+
, V
IN-
V
OUT+
, V
OUT-
T
LS
Min.
-55
- 40
0.0
-2.0
-6.0
-0.5
Max.
125
100
5.5
V
DD1
+0.5
V
DD2
+0.5
260
Unit
°C
°C
V
V
V
°C
Note
1
See
Package Outline Drawings
Section
Recommended Operating Conditions
Parameter
Ambient Operating Temperature
Supply Voltages
Input Voltage
Output Current
Symbol
T
A
V
DD1
, V
DD2
V
IN+
, V
IN-
|I
O
|
Min.
-40
4.5
-200
Max.
85
5.5
200
1
Unit
°C
V
mV
mA
Note
2
3
4
5
1-220
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