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Current Sensing Using Broadcom HCPL-786J-000E Optically Isolated Modulator in Power Inverter Systems

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Current Sensing Using Broadcom HCPL-786J-000E Optically Isolated Modulator in Power Inverter Systems

CMTI(kV/us) : 15kV/us

Default Output : -

Operating Temperature : -40℃~+85℃

Description : SOIC-16-300mil Digital Isolators RoHS

Mfr. Part # : HCPL-786J-000E

Model Number : HCPL-786J-000E

Package : SOIC-16-300mil

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Product Overview

The HCPL-7860/HCPL-786J Optically Isolated Modulator, when paired with the HCPL-0872 Digital Interface IC or a digital filter, forms a two-chip isolated programmable analog-to-digital converter. This system is designed for direct measurement of motor phase currents in power inverters. The HCPL-7860/HCPL-786J utilizes Sigma-Delta () over-sampling modulation to convert a low-bandwidth analog input into a high-speed one-bit data stream, offering high noise margins and excellent immunity to isolation-mode transients. The data and clock are transmitted across an isolation boundary for recovery and decoding. Key applications include motor phase and rail current sensing, data acquisition systems, industrial process control, and general-purpose current sensing and monitoring.

Product Attributes

Brand: Avago Technologies
Compliance: Lead (Pb) Free, RoHS 6 fully compliant options available.
Certifications: UL 1577, CSA, IEC/EN/DIN EN 60747-5-5
Safety Approvals: UL Recognized (HCPL-7860: 3750 Vrms, HCPL-786J: 5000 Vrms)
Handling Precautions: Normal static precautions advised.
Application Restrictions: Not for or aerospace applications.

Technical Specifications

Feature/Model	HCPL-7860	HCPL-786J	Unit	Conditions
Linearity	12-bit		-	-
Conversion Time (Pre-Trigger Mode 2 with HCPL-0872)	200		ns	-
Effective Resolution (5 s Signal Delay)	12-bit		-	(14-bit with 102 s)
Fast Over-Range Detection (with HCPL-0872)	3		s	-
Input Range	200		mV	Single 5 V Supply
Internal Reference Voltage Matching	1		%	-
Operating Temperature Range	-40 to +85		C	-
Isolation Transient Immunity	15		kV/s	-
Supply Voltage (VDD1, VDD2)	4.5 to 5.5		V	-
Input Supply Current (IDD1)	10-15		mA	VIN+ = -350 mV to +350 mV
Output Supply Current (IDD2)	10-15		mA	-
Output Clock Frequency (fCLK)	8.2-13.2		MHz	-
Integral Nonlinearity (INL)	0.01-0.14		%	-
Signal-to-Noise Ratio (SNR)	62-73		dB	VIN+ = 35 Hz, 400 mVpk-pk (141 mVrms) sine wave
Signal Delay (tDSIG)	19-23		s	-
Signal Bandwidth (BW)	18-22		kHz	-
Input-Output Momentary Withstand Voltage (VISO)	3750	5000	Vrms	RH 50%, t = 1 min; TA = 25C
Input-Output Resistance (RI-O)	10¹²-10¹³			VI-O = 500 Vdc
Input-Output Capacitance (CI-O)	1.4		pF	f = 1 MHz
Package Type	DIP-8, Gull Wing Surface Mount	SO-16	-	-
Ordering Option (RoHS Compliant)	-000E, -300E, -500E	-000E, -500E	-	-

2410121758_Broadcom-HCPL-786J-000E_C191647.pdf

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