Agilent HCPL-7860/HCPL-786J
Optically Isolated
Sigma-Delta (Σ−∆ Modulator
Σ−∆)
Σ−∆
Data Sheet
In operation, the HCPL-7860/
HCPL-786J Isolated Modulator
(optocoupler with 3750 V
RMS
dielectric withstand voltage
rating) converts a low-
bandwidth analog input into a
high-speed one-bit data stream
by means of a Sigma-Delta (Σ−
∆)
over-sampling modulator.
This modulation provides for
high noise margins and
excellent immunity against
isolation-mode transients. The
modulator data and on-chip
sampling clock are encoded
and transmitted across the
isolation boundary where they
are recovered and decoded
into separate high-speed clock
and data channels.
Features
•
12-bit Linearity
•
200 ns Conversion Time (Pre-
Trigger Mode 2 with HCPL-0872)
•
12-bit Effective Resolution with 5
µ
s Signal Delay (14-bit with 102
µ
s) (with HCPL-0872)
•
Fast 3
µ
s Over-Range Detection
(with HCPL-0872)
•
± 200 mV Input Range with Single
5 V Supply
•
1% Internal Reference Voltage
Matching
•
Offset Calibration (with HCPL-
0872)
•
-40°C to +85°C Operating
Temperature Range
•
15 kV/µs Isolation Transient
µ
Immunity
8
SIGMA
DELTA
MOD./
ENCODE
Description
The HCPL-7860/HCPL-786J
Optically Isolated Modulator
and HCPL-0872 Digital
Interface IC or digital filter
together form an isolated
programmable two-chip
analog-to-digital converter. The
isolated modulator allows
direct measurement of motor
phase currents in power
inverters.
1
2
Input
Current
3
4
HCPL-7860
•
Safety Approval: UL 1577, CSA
and IEC/EN/DIN EN 60747-5-2
HCPL-0872
or
Digital Filter
MCU
or
DSP
7
DECODE
6
Applications
•
Motor Phase and Rail Current
Sensing
•
Data Acquisition Systems
•
Industrial Process Control
•
Inverter Current Sensing
•
General Purpose Current Sensing
and Monitoring
5
A 0.1 µF bypass capacitor must be connected between pins V
DD
and Ground
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.
SPI and QSPI are trademarks of Motorola Corp.
Microwire is a trademark of National Semiconductor Inc.
Pin Description
ISOLATION
BOUNDARY
V
DD1
V
IN+
1
2
3
4
5
6
7
8
SIGMA-
DELTA
MOD./
ENCODER
DECODER
16
15
14
13
12
11
10
9
GND2
NC
V
DD2
MCLK
NC
MDAT
NC
GND2
V
DD1
1
SIGMA-
DELTA
MOD./
ENCODE
8
7
DECODE
6
5
V
DD2
MCLK
MDAT
GND2
V
IN-
NC
NC
NC
NC
V
IN+
2
V
IN-
3
GND1 4
SHIELD
GND1
HCPL-7860
Symbol
V
DD1
V
IN+
V
IN-
GND1
Description
Supply voltage input (4.5 V to 5.5 V)
Positive input (± 200 mV recommended)
Negative input (normally connected to GND1)
Input ground
HCPL-786J
Symbol
V
DD2
MCLK
MDAT
GND2
Description
Supply voltage input (4.5 V to 5.5 V)
Clock output (10 MHz typical)
Serial data output
Output ground
Ordering Information
Specify part number followed by option number (if desired).
Example:
HCPL-7860#XXXX
No option = Standard DIP package, 50 units per tube.
300 = Gull Wing Surface Mount Option, 50 units per tube.
500 = Tape and Reel Packaging Option, 1000 units per reel.
XXXE = Lead-Free Option
HCPL-786J#XXXX
No option = Standard DIP package, 45 units per tube.
500 = Tape and Reel Packaging Option, 850 units per reel.
XXXE = Lead-Free Option
Option data sheets available. Contact Agilent sales representative or authorized distributor.
Remarks: The notation “#” is used for existing products, while (new) products launched since 15th July 2001 and lead
free option will use “–”
2
Package Outline Drawings
8-pin DIP Package
9.80 ± 0.25
(0.386 ± 0.010)
8
7
6
5
TYPE NUMBER
REFERENCE VOLTAGE
MATCHING SUFFIX*
DATE CODE
A 7860X
YYWW
PIN ONE
1.19 (0.047) MAX.
1
2
3
4
1.78 (0.070) MAX.
7.62 ± 0.25
(0.300 ± 0.010)
6.35 ± 0.25
(0.250 ± 0.010)
4.70 (0.185) MAX.
3.56 ± 0.13
(0.140 ± 0.005)
0.51 (0.020) MIN.
2.92 (0.115) MIN.
1.080 ± 0.320
(0.043 ± 0.013)
0.65 (0.025) MAX.
2.54 ± 0.25
(0.100 ± 0.010)
5˚ TYP.
0.20 (0.008)
0.33 (0.013)
DIMENSIONS IN MILLIMETERS AND (INCHES).
NOTE: FLOATING LEAD PROTRUSION IS 0.5 mm (20mils) MAX.
NOTE: INITIAL OR CONTINUED VARIATION IN THE COLOUR OF THE HCPL-7860/HCPL-786J’S WHITE MOLD COMPOUND IS
NORMAL AND DOES NOT AFFECT DEVICE PERFORMANCE OR RELIABILITY.
*ALL UNITS WITHIN EACH HCPL-7860 STANDARD PACKAGING INCREMENT (EITHER 50 PER TUBE OR 1000 PER REEL) HAVE
A COMMON MARKING SUFFIX TO REPRESENT AN ABSOLUTE REFERENCE VOLTAGE TOLERANCE OF ± 1%. AN ABSOLUTE
REFERENCE VOLTAGE TOLERANCE OF ± 4% IS GUARANTEED BETWEEN STANDARD PACKAGING INCREMENTS.
3
8-pin Gull Wing Surface Mount Option 300
LAND PATTERN RECOMMENDATION
9.80 ± 0.25
(0.386 ± 0.010)
8
7
6
5
1.016 (0.040)
6.350 ± 0.25
(0.250 ± 0.010)
10.9 (0.430)
1
2
3
4
2.0 (0.080)
1.27 (0.050)
1.780
(0.070)
MAX.
9.65 ± 0.25
(0.380 ± 0.010)
7.62 ± 0.25
(0.300 ± 0.010)
1.19
(0.047)
MAX.
3.56 ± 0.13
(0.140 ± 0.005)
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
NOTE: FLOATING LEAD PROTRUSION IS 0.15 mm (6 mils) MAX.
LEAD COPLANARITY
MAXIMUM: 0.102 (0.004)
16-Lead Surface Mount
LAND PATTERN RECOMMENDATION
0.457
(0.018)
16 15 14 13 12 11 10
9
TYPE NUMBER
DATE CODE
A 786J
YYWW
7.493 ± 0.254
(0.295 ± 0.010)
11.63 (0.458)
1.270
(0.050)
0.64 (0.025)
2.16 (0.085)
1
2
3
4
5
6
7
8
ALL LEADS
TO BE
COPLANAR
± 0.002
10.312 ± 0.254
(0.406 ± 0.10)
9˚
8.986 ± 0.254
(0.345 ± 0.010)
0.457
(0.018)
3.505 ± 0.127
(0.138 ± 0.005)
0-8˚
0.025 MIN.
10.160 ± 0.254
(0.408 ± 0.010)
0.203 ± 0.076
(0.008 ± 0.003)
STANDOFF
DIMENSIONS IN MILLIMETERS AND (INCHES).
NOTE: Initial and continued variation in the color of the HCPL-786J's white mold compound is normal
and does not affect device performance or reliability.
NOTE: FLOATING LEAD PROTRUSION IS 0.15 mm (6 mils) MAX.
4
Solder Reflow Temperature Profile
300
PREHEATING RATE 3˚C + 1˚C/-0.5˚C/SEC.
REFLOW HEATING RATE 2.5˚C ± 0.5˚C/SEC.
PEAK
TEMP.
245˚C
PEAK
TEMP.
240˚C
PEAK
TEMP.
230˚C
200
TEMPERATURE (˚C)
2.5˚C ± 0.5˚C/SEC.
160˚C
150˚C
140˚C
3˚C + 1˚C/-0.5˚C
30
SEC.
30
SEC.
SOLDERING
TIME
200˚C
100
PREHEATING TIME
150˚C, 90 + 30 SEC.
50 SEC.
TIGHT
TYPICAL
LOOSE
0
0
50
100
TIME (SECONDS)
150
200
250
ROOM
TEMPERATURE
Recommended Lead Free IR Profile
tp
260 +0/-5˚C
T
p
TEMPERATURE (˚C)
TIME WITHIN 5˚C of ACTUAL
PEAK TEMPERATURE
20-40 SEC.
T
L
T
smax
T
smin
217˚C
RAMP-UP
3˚C/SEC. MAX.
150 - 200˚C
RAMP-DOWN
6˚C/SEC. MAX.
t
s
PREHEAT
60 to 180 SEC.
25
t 25˚C to PEAK
t
L
60 to 150 SEC.
TIME (SECONDS)
NOTES:
THE TIME FROM 25˚C to PEAK TEMPERATURE = 8 MINUTES MAX.
T
smax
= 200˚C, T
smin
= 150˚C
Regulatory Information
The HCPL-7860/HCPL-786J has been approved by the following organizations:
IEC/EN/DIN EN 60747-5-2
Approved under:
IEC 60747-5-2:1997 + A1:2002
EN 60747-5-2:2001 + A1:2002
DIN EN 60747-5-2 (VDE 0884 Teil 2):2003-01.
UL
Approval under UL 1577,
component recognition program
up to V
ISO
= 3750 V
RMS
.
File E55361.
CSA
Approval under CSA Component
Acceptance Notice #5, File CA
88324.
5
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