ACPL-785E , HCPL-7850, HCPL-7851, 5962-97557
Hermetically Sealed Analog Isolation Amplifier
Data Sheet
Description
The HCPL-7850, HCPL-7851 and ACPL-785E are isolation
amplifiers that provide accurate, electrically isolated
and amplified representations of voltage and current.
When used with a shunt resistor to monitor the motor
phase current in a high speed motor drive, the device will
offer superior reliability compared with the traditional
solutions such as current transformers and Hall-effect
sensors. These devices consist of a sigma-delta analog-to-
digital converter optically coupled to a digital-to-analog
converter in a hermetically sealed package. The products
are capable of operation and storage over the full military
temperature range and may be purchased as a standard
product (HCPL-7850), with full MIL-PRF-38534 Class H
testing (HCPL-7851), with MIL-PRF-38534 Class E testing
(Class K with exceptions) or from the DLA Standard Micro-
circuit Drawing (SMD) 5962-97557. Details of the Class E
program may be found on page 16 of this datasheet.
Features
Performance guaranteed over full military temperature
range: -55° C to +125° C
Manufactured and tested on a MIL-PRF-38534 certified
line
Hermetically sealed packages
Dual marked with device part number and DLA
drawing number
QML-38534, Class H and Class E
HCPL-7840 function compatibility
High common mode rejection (CMR): 8 kV/s at VCM =
1000 V
5% gain tolerance
0.1% nonlinearity
Low offset voltage and offset temperature coefficient
100 kHz bandwidth
Schematic Diagram
V
DD1
V
IN+
V
IN–
GND1
I
DD1
1
2
3
4
Applications
I
DD2
8
V
DD2
Industrial, military and space systems
High reliability systems
Harsh industrial environments
Transportation, medical, and life critical systems
General purpose analog signal isolation
+
–
SHIELD
+
–
7
V
OUT+
6
V
OUT–
5
GND2
A 0.1
F
bypass capacitor must be connected between pins 1 and 4 and
between pins 5 and 8.
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.
Superior performance in design critical specifications
such as common-mode rejection, offset voltage, nonlin-
earity, and operating temperature make the HCPL-7850,
HCPL-7851 and ACPL-785E excellent choices for designing
reliable products such as motor controllers and inverters.
With common-mode rejection of 8 kV/s these devices are
suitable for noisy electrical environments such as those
generated by the high switching rates of power IGBTs.
Low offset voltage together with a low offset voltage
temperature coefficient permits accurate use of auto-
calibration techniques.
Gain tolerance of 5% with 0.1% nonlinearity further
provide the performance necessary for accurate feedback
and control.
Selection Guide – Package Styles and Lead Configuration Options
Avago Technologies’s Part Number and Options
Commercial
MIL-PRF-38534, Class H
MIL-PRF-38534, Class E
Standard Lead Finish
Solder Dipped *
Butt Cut/Gold Plate
Gull Wing/Soldered *
Gold Plate
Option #200
Option #100
Option #300
HCPL-7850
HCPL-7851
ACPL-785E
Gold Plate
Option -200
Option -100
Option -300
SMD Part Number
Prescript for all below
Gold Plate
Solder Dipped *
Butt Cut/Gold Plate
Butt Cut/Soldered *
Gull Wing/Soldered *
*Solder contains lead.
5962-
9755701HPC
9755701HPA
9755701HYC
9755701HYA
9755701HXA
5962-
9755701EPC
9755701EPA
9755701EYC
9755701EYA
9755701EXA
Device Marking
Avago DESIGNATOR
Avago P/N
DLA SMD*
DLA SMD*
PIN ONE/
ESD IDENT
A QYYWWZ
XXXXXXXX
XXXXXXXXX
XXX XXX
50434
* QUALIFIED PARTS ONLY
COMPLIANCE INDICATOR,*
DATE CODE, SUFFIX (IF NEEDED)
COUNTRY OF MFR.
Avago CAGE CODE*
2
Outline Drawing
0.76 (0.030)
1.27 (0.050)
9.40 (0.370)
9.91 (0.390)
8.13 (0.320)
MAX.
7.16 (0.282)
7.57 (0.298)
4.32 (0.170)
MAX.
0.51 (0.020)
MIN.
3.81 (0.150)
MIN.
0.20 (0.008)
0.33 (0.013)
2.29 (0.090)
2.79 (0.110)
0.51 (0.020)
MAX.
NOTE: DIMENSIONS IN MILLIMETERS (INCHES).
7.36 (0.290)
7.87 (0.310)
Hermetic Optocoupler Options
Option
100
Description
Surface mountable hermetic optocoupler with leads trimmed for butt joint assembly. This option is available on
commercial and hi-rel product in 8 pin DIP (see drawings below for details).
0.51 (0.020)
MIN.
4.32 (0.170)
MAX.
1.14 (0.045)
1.40 (0.055)
0.51 (0.020)
MAX.
NOTE: DIMENSIONS IN MILLIMETERS (INCHES).
2.29 (0.090)
2.79 (0.110)
0.20 (0.008)
0.33 (0.013)
7.36 (0.290)
7.87 (0.310)
200
300
Lead finish is solder dipped rather than gold plated. This option is available on commercial and hi-rel product in 8 pin DIP.
DLA Drawing part numbers contain provisions for lead finish.
Surface mountable hermetic optocoupler with leads cut and bent for gull wing assembly. This option is available on
commercial and hi-rel product in 8 pin DIP (see drawings below for details). This option has solder dipped leads.
0.51 (0.020)
MIN.
4.57 (0.180)
MAX.
1.40 (0.055)
1.65 (0.065)
0.51 (0.020)
MAX.
5° MAX.
0.20 (0.008)
0.33 (0.013)
9.65 (0.380)
9.91 (0.390)
4.57 (0.180)
MAX.
1.07 (0.042)
1.32 (0.052)
2.29 (0.090)
2.79 (0.110)
NOTE: DIMENSIONS IN MILLIMETERS (INCHES).
Solder contains lead.
3
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Temperature
Supply Voltages
Steady-State Input Voltage
2 Second Transient Input Voltage
Output Voltages
Lead Solder Temperature
Symbol
T
S
T
A
V
DD1
, V
DD2
V
IN+
, V
IN-
V
OUT+
, V
OUT-
Min.
-65
-55
0.0
-2.0
-6.0
-0.5
Max.
+150
+125
+5.5
V
DD1
+ 0.5
V
DD1
+ 0.5
V
DD2
+ 0.5
260 for 10 sec
Units
°C
°C
V
V
V
V
°C
Notes
1
1
ESD Classification (MIL-STD-883, Method 3015)
HCPL-7850, HCPL-7851 and ACPL-785E
( ); Class 1
Recommended Operating Conditions
Parameter
Supply Voltages
Input Voltage (See Note 1)
Symbol
V
DD1
, V
DD2
V
IN+
, V
IN-
Min.
4.5
-200
Max.
5.5
+200
Units
Volts
mV
4
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