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Power Amplifier ICs

Toshiba's 4-channel power amplifier ICs fabricated using a 0.13μm process with the industry's lowest-in-class on-resistance provide high reliability.

Toshiba is expanding its portfolio of Class-TB power amplifier ICs to satisfy the market needs for low power consumption and environmental friendliness.

Product Lineup

4-channel Audio Power Amplifier IC (Recommended Products)
Process Part Number Max Power Class Voltage Gain I2C Bus Output DC Offset Det.
Clip Det. Short-Circuit Det. High-Side Switch Half Short Det. Speaker Burning Pre.
Load
GSM 6V Crui-sing

Package

Status
VCC = 15.2 V VCC = 14.4 V
BiCD0.13
μm
TB2952AHQ 49W 45W AB 26dB/
12dB
HZIP25 MP
TB2975HQ 49W 45W KB 26dB/
16dB
HZIP25
CD0.13μm TCB001HQ 45W  40W  AB 26dB   HZIP25
TCB001FNG HSOP36
TCB501HQ 49W 44W AB 26dB * HZIP25
TCB502HQ 49W 44W AB 26dB * HZIP25
TCB503HQ 49W 44W AB 26dB HZIP25
TCB701FNG 49W 45W TB 26dB/
16dB
* HSOP36
TCB702FNG 45W 40W TB 26dB/
16dB
* HSOP36

*Full time output DC offset detection(TOSHIBA Patent)

1-channel Audio Power Amplifier IC
Process Part Number Max Output Class Voltage Gain Thermal Det. Speaker-Open Det. Short-Circuit Det. Over-Voltage Det. Comment Package Status
VCC = 16 V VCC = 12 V
BiCD0.13μm TB2909FNG 5W 3W AB

26dB

(variable)

Vehicle Sound for Pedestrian TSSOP16 MP

Features

4-channel audio power amplifier IC concept

CD 0.13μm Process

Higher toughness process for +B Surge

Higher Toughness for Immunity Noise

Easy to design for EMI/EMC/BCI etc

Full-time output DC offset detection (TOSHIBA Patent)

The IC can perform full-time DC offset voltage detection at speaker terminals. It is possible to realize a system that prevents the speaker voice coil burning caused by the occurrence of DC offset voltage.

Small flat package
New Linear High-efficiency AMP “Class-TB”

Temperature reduced approx. 20-40 degrees C compared with other AMPs.

6V cruising design
Diagnosis function

Temperature data of Class-AB/TB AMP

Temperature data of Class-AB/TB AMP

Temperature data of Class-AB/TB AMP

Toshiba’s original linear high-efficiency amplifier: Class-TB achieves efficiency TCB701FNG(50 W)/702FNG (45 W)

High efficiency (TOSHIBA Patent)

Power dissipation comparison

  • vs Conventional Class-AB AMP >>> -80% reduction
  • vs Digital Class-D AMP >>> Closer under Pout <4 W
Low BOM costs

Reasonable external parts

  • vs Conventional Class-AB AMP >>> Same 
  • vs Digital Class-D AMP >>> Less than half 
Full-time output DC offset detection (TOSHIBA Patent)
  • The IC can perform full-time DC offset voltage detection at speaker terminals. It is possible to realize a system that prevents the speaker voice coil burning caused by the occurrence of DC offset voltage.

Power Dissipation at Pout=0.8W/channel

Toshiba’s original linear high-efficiency amplifier: Class-TB achieves efficiency TCB701FNG(50 W)/702FNG (45 W)

Product Introduction

4-channel High-Efficiency Linear Power Amplifier for Car Audio: TCB701FNG More

TCB701FNG

Toshiba Electronic Devices & Storage Corporation announced a new 4-channel high-efficiency linear power amplifier "TCB701FNG," that meets current market requirement for high efficiency.  

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 80% 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.

  • Maximum output: 49W×4ch (Vcc=15.2V,RL=4Ω, MaxPower)
  • Output noise voltage: 60μVrms (BW=DIN_AUDIO)
  • Supply voltage: 6V to 18V
  • Package: P-HSSOP36-1116-0.65-001
  • Functions and features:
    • 6V operations
    • Full-time error detection for output DC offset voltage
    • Anti-high frequency noise
    • I2C 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)

4-channel High-Efficiency Linear Power Amplifier for Car Audios Featuring Maximum 45W Output: TCB702FNG More

TCB702FNG

Toshiba Electronic Devices & Storage Corporation 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 "TCB702FNG," 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 new IC’s maximum output is 45W, and the IC is pin-compatible with “TCB701FNG,” the company’s high efficiency linear power amplifier with maximum 50W output.

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.

  • Maximum output: 45W×4ch (Vcc=15.2V,RL=4Ω, MaxPower)
  • Output noise voltage: 60μVrms (BW=DIN_AUDIO)
  • Supply voltage: 6V to 18V
  • Package: P-HSSOP36-1116-0.65-001
  • Functions and features:
    • 6V operations
    • Full-time error detection for output DC offset voltage
    • I2C 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)

Power Amplifier for Car Audio with Strong Resistance to Power Surges:
TCB503HQ More

TCB503HQ

Toshiba Electronic Devices & Storage Corporation has launched a new 4-channel power amplifier for car audio, "TCB503HQ” that delivers strong resistance to power surges.  

Building on Toshiba’s proven development capabilities in ICs for car audio, the new product achieves a higher reliability with an analog fine process resistant to power surges. It also supports 6V operations suitable for vehicles equipped with idling reduction systems, which have become popular in recent years. This feature suppresses popping sounds that occur when power voltage fluctuates.

Other features include a built-in filter to improve resistance to extraneous high-frequency noise, and to prevent generation of abnormal noise even when there is high-frequency noise from mobile phone radio waves and adjustment of door mirrors.

Using the clip detection signal to control the volume and tone control circuit, the sound quality of the set can be improved.

  • Maximum output: 50Wx4ch (Vcc=15.2V,RL=4Ω, JEITA max)
  • Output noise voltage: 45μV (BW=A-weight)
  • Supply voltage: 6V to 18V
  • Package: HZIP25-P-1.00F
  • Functions and features:
    • High output power and low distortion
    • Built-in mute and standby functions, offset detection, short circuit detection, and output clip detection
    • 6V operations (engine idling reduction capability)
    • Built-in protection circuits (overheat, overvoltage, short to the power supply, short to the ground, and load shorted)

Current-Feedback 4ch Power Amplifier IC for Car Audio with Built-In Full-Time Offset Detection: TCB502HQ More

This photo shows the TCB502HQ .

Toshiba Corporation’s Storage & Electronic Devices Solutions Company today announced the launch of the TCB502HQ, a 4-channel power amplifier IC that detects output offset voltage that is a factor in speaker burnout. Mass production is scheduled to start in December 2016.
To respond to growing demand for superior sound quality of car audio, the new IC integrates a current-feedback system of the type adopted in high-end hi-fi audio. This prevents sound quality degradation at wide bandwidths and offers consistent sound quality, considering overtone of musical instruments or human voice.
The new IC also integrates a newly developed, full-time offset detection circuit. It detects offsets generated at the output stage even during playback and contributes to reduction of field failures, thus helping ensure high reliability.

  • Maximum Output Power:
    49W×4ch(VCC=15.2V, RL=4Ω, MAXPOWER)
  • Output Noise Voltage: 33 µV (BW=A-weigh)
  • Operating Supply Voltage: 6 ~18 V (4Ω), 6 ~16 V (2Ω)
  • Package: HZIP25-P-1.00F
  • Embedded Functions and Features:
    • High output and low distortion
    • Built-in mute and standby functions, offset detection, and short-circuit detection
    • 6 V operation (engine idling reduction)
    • A range of protection circuits (thermal, overvoltage, output to VCC, output to GND, output to output)

45-W class 4-channel power amplifier IC with using a new CD-0.13 process:
TCB001HQ More

TCB001HQ image

The engine with an idle reduction system is shut down when the vehicle stops, causing the battery voltage to drop instantaneously. The new power amplifier reduces the minimum operation voltage from 8 V to 6 V, and thereby realizes stable amplifier operation, making it possible to prevent sound loss and noise in car audio.
"TCB001HQ" improves noise tolerance with a newly developed filter circuit, and minimizes the influence of cell phone radio waves on the sound. Reinforced protection circuits realize high reliability.

  • Maximum Output Power:
    45W × 4ch (VCC=15.2V, RL=4Ω,  MAXPOWER
  • Output Noise Voltage: 55 µV (BW=DIN_AUDIO)
  • Operating Supply Voltage Range: 6 to 18 V (4Ω)
  • Package: HZIP25-P-1.00F
  • Embedded Functions and Features
    • High output power and low distortion
    • Built-in mute and standby functions
    • Optional functions (output DC offset detection,
      output short detection, and overvoltage detection)
    • Support start-stop compatibility (prevention of instantaneous
      voltage drop on entry to an idle reduction mode)
    • Support excellent GSM noise immunity
    • Variety of protection circuits (thermal shutdown, overvoltage, short-to-VCC, short-to-GND and short-to-load)

Current-Feedback 4ch Power Amplifier IC for Car Audio with Built-In Full-Time Offset Detection: TCB501HQ More

TCB501HQ image

"TCB501HQ" integrates a newly developed, full-time offset detection circuit. Conventional offset detection during sound reproduction is difficult.It detects output DC offset voltage caused by leakage from the input capacitor and other sources, even during sound reproduction, and prevents speaker burnout.
It also integrates a current-feedback system of the type adopted in high-end hi-fi audio. This prevents sound quality degradation at wide bandwidths and offers consistent sound quality.  

  • Maximum Output Power:
    49W × 4ch (VCC=15.2V, RL=4Ω, MAXPOWER)
  • Output Noise Voltage: 33 µV (BW=A-weigh)
  • Operating Supply Voltage Range:
    6 to 18 V (4Ω), 6 to 16V (2Ω)
  • Package: HZIP25-P-1.00F
  • Embedded Functions and Features
    • High output power and low distortion
    • Built in mute and standby functions, offset detection, and high side switch driver
    • 6V operations (Engine idling reduction capability)
    • Variety of protection circuits (thermal, overvoltage, shorted to VCC, shorted to GND and shorted load)

Supports external audible outputs from vehicles, allowing use of electric vehicle warning sound systems in HEVs and EVs: TB2909FNG More

This photo shows the TB2909FNG.

HEVs and EVs operating in all-electric mode without combustion engine run quietly, and they increasingly are being equipped with electric vehicle warning sound systems that simulate engine sound, so that pedestrians can recognize their approaching. The “TB2909FNG” guarantees operation at up to 110°C, allowing use in electric vehicle warning sound system where stable operation at high temperature is required. The IC also integrates a wide range of abnormality detection functions and protection circuits, contributing to the safety and simplification of automotive systems.

  • Maximum Output Power:
    5W × 1ch (VCC=16V, RL=8Ω, JEITA max)
    3W × 1ch (VCC=12V, RL=8Ω, JEITA max)
  • Total Harmonic Distortion: 0.08% (POUT=0.125W)
  • Output Noise Voltage: 55 µV
  • Operating Supply Voltage Range: 6 to 16 V
  • Operating Temperature Range: Ta= -40 to 110°C
  • Package: TSSOP16
  • Embedded Functions and Features
    • Built in mute, standby functions
    • Variety of abnormality detection functions (Speaker open, Output short-circuits to GND or VCC, Thermal, and Overload)
    • Variety of protection circuits (Thermal Shut Down, Over-voltage, Output shorted to VCC, Output shorted to GND , and Shorted load)

* System and product names mentioned herein may be trademarks or registered trademarks of respective companies or organizations.

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