TLP7820 – Isolation Amplifier (Optically Isolated) – Toshiba

The Toshiba TLP7820 is an optically coupled isolation amplifier in an SO8L (LF4) 8-pin package, providing 5000 Vrms isolation with analog input/output for precision current and voltage sensing in motor drives and inverters.

The Toshiba TLP7820 is an optically coupled (photocoupler-based) isolation amplifier designed for high-accuracy analog signal transmission across a galvanic isolation barrier. Built around sigma-delta analog-to-digital conversion technology with an analog output, it is ideal for sensing the small voltage developed across a shunt resistor in power-conversion systems. The device delivers 5000 Vrms isolation, low nonlinearity, and high common-mode transient immunity (CMTI), housed in a compact SO8L (LF4) 8-pin surface-mount package.

Key Features

• Optically isolated amplifier with analog input and analog output
• Isolation voltage: 5000 Vrms (BVS)
• Primary-side supply (VDD1): 4.5 V to 5.5 V
• Secondary-side supply (VDD2): 3.0 V to 5.5 V
• Recommended differential input range: +/-200 mV (full-scale range +/-300 mV typ.)
• Gain: approximately 8.2 V/V (typ.)
• Output nonlinearity: 0.02% typ. (0.13% max over +/-200 mV)
• Common-mode transient immunity (CMTI): 20 kV/us typ. (15 kV/us min.)
• Operating temperature range: -40 C to +105 C
• Safety standards: UL 1577, cUL, EN 60747-5-5, EN IEC 62368-1

Applications

• Motor phase current and voltage sensing
• Inverter current and voltage sensing
• Shunt-resistor current sensing in electronic motor drives
• Industrial power supplies and power conversion
• Renewable-energy and battery-management systems

Why Source TLP7820 from Pacific Component Xchange

The Toshiba TLP7820 can see limited authorized-distributor stock, which may stall builds for motor-drive and inverter programs. Pacific Component Xchange is an independent distributor specializing in hard-to-find power-management ICs and optocouplers. We help engineers and buyers secure obsolete, allocated, and low-availability parts like the TLP7820 with rigorous authenticity verification and inspection. Submit an RFQ today for current pricing, lead times, and available date/lot codes. We support global shipping and can source the specific gain-rank and packaging variant your design requires.