TOKYO — (BUSINESS WIRE) — September 11, 2015 — Toshiba Corporation’s (TOKYO:6502) Semiconductor & Storage Products Company today announced the launch of optical coupled isolation amplifiers with a delta-sigma AD converter that can detect infinitesimal electric current and voltage fluctuation with high-precision, for use in industrial equipment applications. The new products will be in available in analog output and digital output types, and can be provided in either a low height 2.3mm(max) SO8L thin package or a conventional DIP8 package. Shipment of the new products starts today.
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Toshiba: Optical coupled isolation amplifier equipped with a delta-sigma AD converter (Photo: Business Wire)
Monitoring the phase current of motors and BUS voltage fluctuations for accurate feedback to the microcontroller is essential to realizing the high-precision operation required in recent industrial equipment, including inverters and servo amplifiers. In order to meet these requirements, the new optical coupled isolation amplifiers are equipped with a high-precision delta-sigma AD converter on the input side and achieve the industry’s highest level of linearity[1], a performance of 0.02%(typ.)@NL200 for the analog output products and 3LSB(typ.)@INL for the digital output products. The isolation amplifiers also secure a CMTI (Common-Mode Transient Immunity) value of 20kV/μs(typ.), enabling stable operation in motor control applications which usually generate high levels of noise. Furthermore, the 5000V(min.) isolation voltage makes them suitable for use in various industrial equipment applications.
Applications:
- Industrial equipment including inverters, servo amplifiers, robots, CNCs and power supplies
- Wind turbine and photovoltaic inverters, battery management
- UPS, power supplies for servers, battery management and air-conditioners for office and residential use
Line-up and Key Specifications: |
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Analog output products |
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Part Number | TLP7820 | TLP7920 | ||
Package |
SO8L |
DIP8 |
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Output Type |
Single phase output = 0 to 2.5V |
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Operation Temperature |
-40 to 105 degrees Celsius |
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Input Voltage Range |
±200mV/±300mV(FSR) |
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Non-linearity (NL 200 )
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0.02%(typ.) |
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Gain Error (Ta = 25 degrees Celsius) |
±0.5/±1/±3% | |||
Supply Current(Input) | 8.6mA(typ.) | |||
Common Mode Transient
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20kV/μs(typ.)@VCM=1kV,Ta = 25 degrees Celsius |
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Isolation Voltage | 5000Vrms | |||
Digital output products |
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Part Number | TLP7830 | TLP7930 | ||
Package | SO8L | DIP8 | ||
Output Type | 1bit digital / CLK Output | |||
Operation Temperature |
-40 to 105 degrees Celsius |
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Input Voltage Range | ±200mV/±320mV(FSR) | |||
Integral Non-linearity
|
3LSB(typ.) |
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Gain Error (Ta = 25 degrees Celsius) |
±1%(min/max) |
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Supply Current (Input) |
8.5mA(typ.) |
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Common Mode Transient
|
20kV/μs(typ.)@VCM=1kV,Ta = 25 degrees Celsius |
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Isolation Voltage | 5000Vrms | |||