H
High CMR Analog Isolation
Amplifiers
Technical Data
HCPL-7820
HCPL-7825
Features
• Fast Propagation Delays for
Over-Current and Fault
Detection Sensing
• High Common Mode
Rejection (CMR): 30 kV/
µ
s at
V
CM
= 1000 V*
• 3% Gain Tolerance:
HCPL-7820
5% Gain Tolerance:
HCPL-7825
• 0.05% Nonlinearity
• Low Offset Voltage and Off-
set 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
µ
m 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
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
Functional Diagram
V
DD1
1
I
DD1
I
DD2
8
V
DD2
V
IN+
2
+
+
7
V
OUT+
V
IN–
3
–
–
6
V
OUT–
GND1
4
5
GND2
CMR SHIELD
A 0.1
µ
F bypass capacitor must be connected between pins 1 and 4 and between pins 5 and 8.
*The terms common-mode rejection (CMR) and isolation-mode rejection (IMR) are used interchangeably throughout this data sheet.
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.
5965-3591E
1-233
this device to be used in hostile
industrial environments. This
performance is delivered in an
auto-insertable, industry standard
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.
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)
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 7820
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
1-234
Gull Wing Surface Mount Option 300*
9.65 ± 0.25
(0.380 ± 0.010)
8
7
6
5
PIN LOCATION (FOR REFERENCE ONLY)
1.02 (0.040)
1.19 (0.047)
4.83 TYP.
(0.190)
HP 7820
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
LEAD COPLANARITY
MAXIMUM: 0.102 (0.004)
*Refer to Option 300 Data Sheet for more information.
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.)
1-235
Regulatory Information
The HCPL-7820/7825 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)
Symbol
L(IO1)
L(IO2)
Value
7.4
8.0
0.5
Units
mm
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
Tracking Resistance
(Comparative Tracking
Index)
Isolation Group
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 22)
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
T
S
P
S,Input
P
S,Output
R
S
175
80
250
≥
1x10
12
°C
mW
mW
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.
1-236
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
Symbol
T
A
V
DD1
, V
DD2
V
IN+
, V
IN-
Min.
-40
4.5
-200
Max.
100
5.5
200
Unit
°C
V
mV
Note
2
1-237
