�Power consumption up to 90% lower than general class AB amplifier�
TOKYO — (BUSINESS WIRE) — December 6, 2017 — Toshiba Electronic Devices & Storage Corporation today announced a new 4-channel high-efficiency linear power amplifier "TCB701FNG," that meets current market requirement for high efficiency. Sample shipments will start in January, 2018.
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Toshiba Electronic Devices & Storage Corporation: a new 4-channel high-efficiency linear power amplifier "TCB701FNG" for car audio. (Photo: Business Wire)
With "TCB701FNG," the company has improved on its technology to realize efficiency comparable with a digital high efficiency, class D amplifier in actual operating range (0.5 to 4W). Power consumption is cut by up to 90% of that for a typical class AB amplifier.
The new amplifier also includes a self-diagnosis function with I2C bus control that can diagnose errors and contribute to a suitable set design by changing the detection setting for gain or time constants. It also includes full-time error detection of output DC offset voltage, which can quickly detect abnormal output offset voltage and prevent speaker burnout, improving set reliability.
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Main specifications |
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| Part number | TCB701FNG | |
| Maximum output |
49W×4ch (Vcc=15.2V, RL=4Ω, MaxPower) |
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| Supply voltage | 6V to 18V | |
| Total harmonic distortion | 0.01% (Pout=0.4W) | |
| Output noise voltage | 60μVrms (BW=DIN_AUDIO) | |
| Power consumption |
Up to 1/10 lower than a typical class AB amplifier
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| Functions and features |
• 6V operations
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| Package | P-HSSOP36-1116-0.65-001 | |
