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Agilent HCPL-7860/HCPL-786J
Optically Isolated
Sigma-Delta (
-
-
-
-
-) Modulator
Data Sheet
Features
12-bit Linearity
200 ns Conversion Time (Pre-
Trigger Mode 2 with HCPL-0872)
12-bit Effective Resolution with 5
s Signal Delay (14-bit with 102
s) (with HCPL-0872)
Fast 3 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)
-40C to +85C Operating
Temperature Range
15 kV/s Isolation Transient
Immunity
Safety Approval: UL 1577, CSA
and IEC/EN/DIN EN 60747-5-2
Applications
Motor Phase and Rail Current
Sensing
Data Acquisition Systems
Industrial Process Control
Inverter Current Sensing
General Purpose Current Sensing
and Monitoring
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.
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 (
-
) 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.
A 0.1 F 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.
SIGMA
DELTA
MOD./
ENCODE
DECODE
1
2
3
4
8
7
6
5
Input
Current
HCPL-0872
or
Digital Filter
MCU
or
DSP
HCPL-7860
2
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 ""
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
Ordering Information
Specify part number followed by option number (if desired).
Example:
Pin Description
Symbol
Description
Symbol
Description
V
DD1
Supply voltage input (4.5 V to 5.5 V)
V
DD2
Supply voltage input (4.5 V to 5.5 V)
V
IN+
Positive input ( 200 mV recommended)
MCLK
Clock output (10 MHz typical)
V
IN-
Negative input (normally connected to GND1)
MDAT
Serial data output
GND1
Input ground
GND2
Output ground
HCPL-7860
1
2
3
4
8
7
6
5
V
DD1
V
IN+
V
IN-
GND1
V
DD2
MCLK
MDAT
GND2
SHIELD
ISOLATION
BOUNDARY
DECODE
SIGMA-
DELTA
MOD./
ENCODE
5
6
12
11
NC
NC
NC
MDAT
7
10
NC
NC
8
9
GND1
GND2
1
2
16
15
V
DD1
V
IN+
GND2
NC
3
14
V
IN-
V
DD2
4
13
NC
MCLK
SIGMA-
DELTA
MOD./
ENCODER
DECODER
HCPL-786J
3
Package Outline Drawings
8-pin DIP Package
9.80 0.25
(0.386 0.010)
PIN ONE
1.78 (0.070) MAX.
1.19 (0.047) MAX.
A 7860X
YYWW
DATE CODE
0.51 (0.020) MIN.
0.65 (0.025) MAX.
4.70 (0.185) MAX.
2.92 (0.115) MIN.
5 TYP.
7.62 0.25
(0.300 0.010)
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.
5
6
7
8
4
3
2
1
REFERENCE VOLTAGE
MATCHING SUFFIX*
TYPE NUMBER
3.56 0.13
(0.140 0.005)
6.35 0.25
(0.250 0.010)
0.20 (0.008)
0.33 (0.013)
2.54 0.25
(0.100 0.010)
1.080 0.320
(0.043 0.013)
4
8-pin Gull Wing Surface Mount Option 300
16-Lead Surface Mount
0.635 0.25
(0.025 0.010)
12 NOM.
9.65 0.25
(0.380 0.010)
0.51 0.130
(0.020 0.005)
7.62 0.25
(0.300 0.010)
5
6
7
8
4
3
2
1
9.80 0.25
(0.386 0.010)
6.350 0.25
(0.250 0.010)
1.016 (0.040)
1.27 (0.050)
10.9 (0.430)
2.0 (0.080)
LAND PATTERN RECOMMENDATION
1.080 0.320
(0.043 0.013)
3.56 0.13
(0.140 0.005)
1.780
(0.070)
MAX.
1.19
(0.047)
MAX.
2.540
(0.100)
BSC
0.20 (0.008)
0.33 (0.013)
NOTE: FLOATING LEAD PROTRUSION IS 0.15 mm (6 mils) MAX.
DIMENSIONS IN MILLIMETERS (INCHES).
TOLERANCES (UNLESS OTHERWISE SPECIFIED): xx.xx = 0.01
xx.xxx = 0.005
LEAD COPLANARITY
MAXIMUM: 0.102 (0.004)
9
7.493 0.254
(0.295 0.010)
10
11
12
13
14
15
16
8
7
6
5
4
3
2
1
0.457
(0.018)
3.505 0.127
(0.138 0.005)
9
10.312 0.254
(0.406 0.10)
10.160 0.254
(0.408 0.010)
0.025 MIN.
0.203 0.076
(0.008 0.003)
STANDOFF
8.986 0.254
(0.345 0.010)
0-8
0.457
(0.018)
1.270
(0.050)
ALL LEADS
TO BE
COPLANAR
0.002
A 786J
YYWW
TYPE NUMBER
DATE CODE
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.
11.63 (0.458)
2.16 (0.085)
0.64 (0.025)
LAND PATTERN RECOMMENDATION
5
Solder Reflow Temperature Profile
Recommended Lead Free IR Profile
217C
RAMP-DOWN
6C/SEC. MAX.
RAMP-UP
3C/SEC. MAX.
150 - 200C
260 +0/-5C
t 25C to PEAK
60 to 150 SEC.
20-40 SEC.
TIME WITHIN 5C of ACTUAL
PEAK TEMPERATURE
tp
t
s
PREHEAT
60 to 180 SEC.
t
L
T
L
T
smax
T
smin
25
T
p
TIME (SECONDS)
TEMPERATURE (
C)
NOTES:
THE TIME FROM 25C to PEAK TEMPERATURE = 8 MINUTES MAX.
T
smax
= 200C, T
smin
= 150C
UL
Approval under UL 1577,
component recognition program
up to V
ISO
= 3750 V
RMS
.
File E55361.
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.
Regulatory Information
The HCPL-7860/HCPL-786J has been approved by the following organizations:
CSA
Approval under CSA Component
Acceptance Notice #5, File CA
88324.
0
TIME (SECONDS)
TEMPERATURE (C)
200
100
50
150
100
200
250
300
0
30
SEC.
50 SEC.
30
SEC.
160C
140C
150C
PEAK
TEMP.
245C
PEAK
TEMP.
240C
PEAK
TEMP.
230C
SOLDERING
TIME
200C
PREHEATING TIME
150C, 90 + 30 SEC.
2.5C 0.5C/SEC.
3C + 1C/-0.5C
TIGHT
TYPICAL
LOOSE
ROOM
TEMPERATURE
PREHEATING RATE 3C + 1C/-0.5C/SEC.
REFLOW HEATING RATE 2.5C 0.5C/SEC.
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