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 offers 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 can be purchased as a
commercial product (HCPL-7850), with full MIL-PRF-38534
Class H testing (HCPL-7851), with MIL-PRF-38534 Class E testing
(ACPL-785E) (Class K with exceptions) or from the DLA Standard
Microcircuit Drawing (SMD) 5962-97557. Details of the Class E
program exceptions are listed here:
1.
2.
Nondestructive Bond Pull, Test method 2023 of
MIL-STD-883 in screening is not required.
Particle Impact Noise Detection (PIND), Test method 2020
of MIL-STD-883 in device screening and group C testing is
not required.
Die Shear Strength, Test method 2019 of MIL-STD-883 in
group B testing is not required.
Internal Water Vapor Content, Test method 1018 of
MIL-STD-883 in group C is not required.
Scanning Electron Microscope (SEM) inspection, Test
method 2018 of MIL-STD-883 in element evaluation is not
required.
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 Standard
Microcircuit Drawing (SMD)
QML-38534, Class H and Class E
HCPL-7840 function compatibility
High common-mode rejection (CMR): 8 kV/μs at VCM =
1000V
5% gain tolerance
0.1% nonlinearity
Low offset voltage and offset temperature coefficient
100 kHz bandwidth
Applications
3.
4.
5.
Industrial, military, and space systems
High reliability systems
Harsh industrial environments
Transportation, medical, and life critical systems
General-purpose analog signal isolation
CAUTION
1.
See
Selection Guide – Lead Configuration Options
for available
extensions.
Broadcom
-1-
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.
ACPL-785E, HCPL-7850, HCPL-7851, 5962-97557
Data Sheet
Schematic Diagram
Schematic Diagram
V
DD1
V
IN+
V
IN–
GND1
I
DD1
1
2
3
4
I
DD2
8
V
DD2
Superior performance in design-critical specifications, such as
common-mode rejection, offset voltage, nonlinearity, and
operating temperature, makes 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/μs, 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.
+
–
SHIELD
+
–
7
V
OUT+
6
V
OUT–
5
GND2
NOTE
A 0.1-μF bypass capacitor must be connected
between pins 1 and 4 and between pins 5 and
8.
Selection Guide – Lead Configuration Options
Part Number and Options
Commercial
MIL-PRF-38534, Class H
MIL-PRF-38534, Class E
Standard Lead Finish
Solder Dipped
b
Butt Cut/Gold Plate
a
Gull Wing/Soldered
b
SMD Part Number
Prescript for all below
Gold Plate
a
Solder Dipped
b
Butt Cut/Gold Plate
a
Butt Cut/Soldered
b
Gull Wing/Soldered
b
a.
b.
Solder lead finish: Sn63/Pb37.
HCPL-7850
HCPL-7851
ACPL-785E
Gold Plate
a
Option #200
Option #100
Option #300
Gold Plate
a
Option -200
Option -100
Option -300
5962-
9755701HPC
9755701HPA
9755701HYC
9755701HYA
9755701HXA
5962-
9755701EPC
9755701EPA
9755701EYC
9755701EYA
9755701EXA
Gold Plate lead finish: Maximum gold thickness of leads is <100 micro inches. Typical is 60 to 90 micro inches.
Device Marking
Avago DESIGNATOR
Avago P/N
DLA SMD
[1]
DLA SMD
[1]
PIN ONE/
ESD IDENT
A QYYWWZ
XXXXXXXX
XXXXXXXXX
XXX XXX
50434
[1] QML PARTS ONLY
COMPLIANCE INDICATOR,
[1]
DATE CODE, SUFFIX (IF NEEDED)
COUNTRY OF MFR.
Avago CAGE CODE
[1]
Broadcom
-2-
ACPL-785E, HCPL-7850, HCPL-7851, 5962-97557
Data Sheet
Outline Drawing
Outline Drawing
8-Pin DIP Through Hole
1.02 (0.040)
1.52 (0.060)
10.03 (0.395)
10.29 (0.405)
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, Class
H and Class E product in 8-pin DIP.
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, Class H and Class E product in 8-pin DIP.
DLA Drawing (SMD) 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,
Class H and Class E product in 8-pin DIP. 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).
Broadcom
-3-
ACPL-785E, HCPL-7850, HCPL-7851, 5962-97557
Data Sheet
Absolute Maximum Ratings
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Temperature
Supply Voltages
Steady-State Input Voltage
2 Second Transient Input Voltage
Output Voltages
Lead Solder Temperature
a.
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
Unit
°C
°C
V
V
V
V
°C
Notes
a
a
If V
IN–
is brought above V
DD1
– 2V with respect to GND1 an internal test mode may be activated. This test mode is not intended for customer use.
ESD Classification
(MIL-STD-883, Method 3015)
HCPL-7850, HCPL-7851, and ACPL-785E
, Class 1
Recommended Operating Conditions
Parameter
Supply Voltages
Input Voltage
a
a.
Symbol
V
DD1
, V
DD2
V
IN+
, V
IN–
Min
4.5
–200
Max
5.5
+200
Unit
V
mV
If V
IN–
is brought above V
DD1
– 2V with respect to GND1 an internal test mode may be activated. This test mode is not intended for customer use.
Broadcom
-4-
ACPL-785E, HCPL-7850, HCPL-7851, 5962-97557
Data Sheet
DC Electrical Specifications
DC Electrical Specifications
Over recommended operating conditions (T
A
= –55°C to +125°C, V
IN+
= 0V, V
IN–
= 0V, V
DD1
= 5V and V
DD2
= 5V, unless otherwise
specified).
Parameter
Input Offset Voltage
Gain
20-mV Nonlinearity
10-mV Nonlinearity
Symbol
V
OS
G
NL
200
NL
100
V
OCM
I
DD1
I
DD2
I
I–O
|V
IN+
|
MAX
I
IN
R
IN
CMRR
IN
R
O
V
OL
V
OH
|I
OSC
|
R
I–O
C
I–O
—
—
—
—
—
—
—
—
—
–0.57
480
69
1
1.28
3.84
11
10
12
2.7
—
—
—
—
—
—
—
—
—
μA
kΩ
dB
Ω
V
V
mA
Ω
pF
V
IN+
= 400 mV
V
IN+
= –400 mV
V
OUT
= 0V or V
DD2
V
I–O
= 500 Vdc
f = 1 MHz, V
I–O
= 0 Vdc
i
e
g
Group A
a
Subgroups
1, 2 ,3
2, 3
1
2, 3
1
2, 3
1
Min
–1.0
7.36
7.60
—
—
—
—
2.20
—
—
—
—
Typ
b
0.6
8.00
8.00
0.05
0.05
0.01
0.01
2.56
10.7
9.4
—
320
Max
5.0
8.64
8.4
0.8
0.2
0.2
0.1
2.80
15.5
17
1.0
—
Unit
mV
V/V
%
Test Conditions
4.5V ≤ (V
DD1
, V
DD2
) ≤ 5.5V
–200 mV ≤ V
IN+
≤ 200 mV,
4.5V ≤ (V
DD1
, V
DD2
) ≤ 5.5V
–200 mV ≤ V
IN+
≤ 200 mV,
4.5V ≤ (V
DD1
, V
DD2
) ≤ 5.5V
–100 mV ≤ V
IN+
≤ 100 mV,
4.5V ≤ (V
DD1
, V
DD2
) ≤ 5.5V
Fig
1, 2, 3
5, 6, 7
5, 8, 9,
10, 12
5, 8, 9,
11, 12
Notes
c
d
Output Common-Mode Voltage
Input Supply Current
Output Supply Current
Input-Output Insulation
Leakage Current
Maximum Input Voltage Before
Output Clipping
Average Input Bias Current
Average Input Resistance
Input DC Common-Mode
Rejection Ratio
Output Resistance
Output Low Voltage
Output High Voltage
Output Short-Circuit Current
Resistance (Input-Output)
Capacitance (Input–Output)
a.
b.
c.
d.
e.
f.
g.
h.
i.
1, 2, 3
1, 2, 3
1, 2, 3
1
V
mA
mA
μA
mV
–400 mV ≤ V
IN+
≤ 400 mV,
4.5V ≤ (V
DD1
, V
DD2
) ≤ 5.5V
14, 16
15, 16
RH ≤ 65%, t = 5 sec.
V
I–O
= 1500 Vdc, T
A
= 25°C
4, 12
13
e
f
4
h
Commercial parts receive 100% testing at 25°C (Subgroups 1 and 9). SMD, Class H and Class E receive 100% testing at 25, 125, and –55°C (Subgroups 1 and 9,
2 and 10, 3 and 11, respectively).
All typicals are at the nominal operating conditions of V
IN+
= 0V, V
IN–
= 0V, T
A
= 25°C, V
DD1
= 5V and V
DD2
= 5V.
Exact offset value is dependent on layout of external bypass capacitors. The offset value in the data sheet corresponds to Broadcom’s recommended layout
(see
Figure 26
and
Figure 27).
Nonlinearity is defined as half of the peak-to-peak output deviation from the best-fit gain line, expressed as a percentage of the full-scale differential output
voltage.
Device considered a two-terminal device: Pins 1, 2, 3, and 4 are shorted together, and pins 5, 6, 7, and 8 are shorted together.
Because of the switched capacitor nature of the sigma-delta A/D converter, time averaged values are shown.
CMRR
IN
is defined as the ratio of the gain for differential inputs applied between pins 2 and 3 to the gain for both common-mode inputs applied to both pins
2 and 3 with respect to pin 4.
When the differential input signal exceeds approximately 320 mV, the outputs will limit at the typical values shown.
Short-circuit current is the amount of output current generated when either output is shorted to V
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