Document
HCPL-7860/HCPL-786J Optically Isolated Sigma-Delta (S-D) Modulator
Data Sheet
Lead (Pb) Free RoHS 6 fully compliant RoHS 6 fully compliant options available; -xxxE denotes a lead-free product
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 converts a low-bandwidth analog input into a highspeed 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 onchip 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 µs Signal Delay
(14-bit with 102 µs) (with HCPL-0872) • Fast 3 µs 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 Immunity • Safety Approval: UL 1577, CSA and IEC/EN/DIN EN
60747-5-5
Applications
• Motor Phase and Rail Current Sensing • Data Acquisition Systems • Industrial Process Control • Inverter Current Sensing • General Purpose Current Sensing and Monitoring
Input Current
18
2 SIGMA DELTA MOD./
3 ENCODE
DECODE
7 6
45 HCPL-7860
HCPL-0872 or
Digital Filter
MCU or DSP
NOTE: A 0.1 μF bypass capacitor must be connected between pins VDD1 and GND1 and between pins VDD2 and GND2.
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. The components featured in this datasheet are not to be used in military or aerospace applications or environments.
Pin Description
ISOLATION BOUNDARY
V DD1 1
8 V DD2
V IN+ 2 V IN- 3
SIGMADELTA MOD./ ENCODE
DECODE
7 MCLK 6 MDAT
GND1 4
SHIELD
5 GND2
HCPL-7860
V DD1 1
V IN+ 2
V IN- 3
NC 4
SIGMADELTA
NC
5
MOD./ ENCODER
NC 6
NC 7
GND1 8
16 GND2 15 NC 14 V DD2 13 MCLK DECODER 12 NC 11 MDAT 10 NC 9 GND2
HCPL-786J
Symbol Description
VDD1
Supply voltage input (4.5 V to 5.5 V)
VIN+ Positive input (± 200 mV recommended)
VIN- Negative input (normally connected to GND1)
GND1 Input ground
Note: NC = No connection. Leave floating.
Symbol VDD2 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
HCPL-7860 is UL Recognized with 3750 Vrms for 1 minute per UL1577. HCPL-786J is UL Recognized with 5000 Vrms for 1 minute per UL1577.
Option
Part number
RoHS Compliant
Non-RoHS Compliant
Package
Surface Mount
Gull Wing
Tape & Reel
IEC/EN/DIN EN 60747-5-5 Quantity
HCPL-7860
-000E -300E
No option #300
300 mil DIP-8
X
X
X 50 per tube X 50 per tube
-500E
#500
XX X
X 1000 per reel
HCPL-786J
-000E
No option
SO-16
X 45 per tube
-500E
#500
X X X 850 per reel
To order, choose a part number from the part number column and combine with the desired option from the option column to form an order entry.
Example 1: HCPL-7860-500E to order product of Gull Wing Surface Mount package in Tape and Reel packaging with IEC/EN/DIN
EN 60747-5-5 Safety Approval in RoHS compliant.
Example 2: HCPL-786J to order product of SO-16 package in tube packaging and non-RoHS compliant.
Option datasheets are available. Contact your Avago sales representative or authorized distributor for information.
Remarks: The notation ‘#XXX’ is used for existing products, while (new) products launched since 15th July 2001 and RoHS compliant option will use ‘-XXXE’.
2
Package Outline Drawings
8-pin DIP Package
9.80 ± 0.25 (0.386 ± 0.010) Device Part Number
87
65
Avago Lead Free
Pin 1 Dot
A NNNN Z
• YYWW EEE P
12 34
Test Rating Code UL Logo Special Program Code
Date Code Lot ID
1.19 (0.047) MAX.
1.78 (0.070) MAX.
3.56 ± 0.13 (0.140 ± 0.005)
4.70 (0.185) MAX.
7.62 ± 0.25 (0.300 ± 0.010)
6.35 ± 0.25 (0.250 ± 0.010)
5 TYP.
0.254
+ 0.076 - 0.051
(0.010
+ 0.003) - 0.002)
1.080 ± 0.320 (0.043 ± 0.013)
0.51 (0.020) MIN. 2.92 (0.115) MIN.
0.65 (0.025) MAX. 2.54 ± 0.25 (0.100 ± 0.010)
DIMENSIONS IN MILLIMETERS AND (INCHES). OPTION NUMBERS 300 AND 500 NOT MARKED. NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.
8-pin Gull Wing Surface Mount Option 300
Avago Lead Free
Pin 1 Dot
9.80 ± 0.25 (0.386 ± 0.010) Device Part Number
87 65
A NNNN Z
• YYWW EEE P
12 34
LAND PATTERN RECOMMENDATION 1.016 (0.040)
Test Rating Code
UL Logo
6.350 ± 0.25 (0.250 ± 0.010)
Special P.