HCPL-7860 Broadcom

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 Features 12-bit Linearity The HCPL-7860/HCPL-786J Optically Isolated Modulator and HCPL-0872 Digital Interface IC or digital filter together 200 ns Conversion Time form an isolated programmable two-chip analog-to-digital (Pre-Trigger Mode 2 with HCPL-0872) converter. The isolated modulator allows direct measure- 12-bit Effective Resolution with 5 s Signal Delay ment of motor phase currents in power inverters. (14-bit with 102 s) (with HCPL-0872) In operation, the HCPL-7860/HCPL-786J Isolated Modula- Fast 3 s Over-Range Detection (with HCPL-0872) tor converts a low-bandwidth analog input into a high- 200 mV Input Range with Single 5 V Supply speed one-bit data stream by means of a Sigma-Delta () over-sampling modulator. This modulation provides 1% Internal Reference Voltage Matching for high noise margins and excellent immunity against Oset Cff alibration (with HCPL-0872) isolation-mode transients. The modulator data and on- -40C to +85C Operating Temperature Range chip sampling clock are encoded and transmitted across the isolation boundary where they are recovered and de- 15 kV/s Isolation Transient Immunity coded into separate high-speed clock and data channels. 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 1 8 SIGMA 2 7 HCPL-0872 MCU Input DELTA DECODE or or MOD./ Current Digital Filter DSP ENCODE 3 6 4 5 HCPL-7860 NOTE: A 0.1 F 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 GND2 1 16 DD1 V 2 15 NC IN+ V DD1 V 1 8 DD2 V 3 14 V IN- DD2 SIGMA- NC 4 13 MCLK DELTA V 2 7 MCLK IN+ SIGMA- DECODER MOD./ DELTA NC 5 12 NC ENCODER DECODE MOD./ V ENCODE 3 IN- 6 MDAT NC 6 11 MDAT NC 7 10 NC GND1 4 5 GND2 SHIELD GND1 8 9 GND2 HCPL-7860 HCPL-786J Symbol Description Symbol Description V Supply voltage input (4.5 V to 5.5 V) V Supply voltage input (4.5 V to 5.5 V) DD1 DD2 V Positive input ( 200 mV recommended) MCLK Clock output (10 MHz typical) IN+ V Negative input (normally connected to GND1) MDAT Serial data output IN- GND1 Input ground GND2 Output ground Note: NC = No connection. Leave floating. 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 RoHS Non-RoHS Surface Gull Tape IEC/EN/DIN EN Part number Compliant Compliant Package Mount Wing & Reel 60747-5-5 Quantity HCPL-7860 -000E No option 300 mil X 50 per tube DIP-8 -300E 300 X X X 50 per tube -500E 500 X X 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