4-channel High-Efficiency Linear Power Amplifier for Car Audios Featuring Maximum 45W Output

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4-channel High-Efficiency Linear Power Amplifier for Car Audios Featuring Maximum 45W Output

Toshiba announced the launch of TCB702FNG, an addition to its 4-channel high-efficiency linear power amplifiers that meet current market requirements for high efficiency. With the new power amplifier, Toshiba has improved on its technology to realize efficiency comparable with a digital high efficiency of class D amplifier in actual operating range (0.5 to 4W). Power consumption is cut by up to 80% of that for a typical class AB amplifier.

 

The maximum output for TCB702FNG is 45W, and is pin-compatible with TCB701FNG, the company’s high efficiency linear power amplifier with maximum 50W output. Moreover, it also incorporates 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.

 

Main specifications

Part number

 TCB702FNG

Maximum output

 45W×4ch (Vcc=15.2V,RL=4Ω, MaxPower)

Supply voltage

 6V to 18V

Total harmonic distortion

 0.02% (Pout=0.4W)

Output noise voltage

 60μVrms (BW=DIN_AUDIO)

Power consumption

 Up to 80% lower than a typical class AB amplifier

 (supply voltage=14.4V in case of 0.8W output)

Functions and features

  •   6V operations
  •   Full-time error detection for output DC offset voltage
  •  2C bus control allows diagnosis of errors such as cross output connection.
  •  Various detections are selectable from two or more settings, such as a gain, mute time constants and temperature
  •  Can be used as both a power amplifier and line output amplifier.
  •  Various built-in protection circuits (output cross connection, over voltage, and low voltage)

Package

 P-HSSOP36-1116-0.65-001

 

Sample shipments are ready with mass production scheduled to begin in the first quarter of 2019.

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