Automotive audio power amplifier ICs

Toshiba’s audio power amplifier for in-vehicle adopts the low on-resistance 0.13um process with the leading edge and top-class in the industry, and realize the high quality design by including the various protection functions and the original safety function for in-vehicle.
In addition, the audio amplifier can realize the low-power consumption design equaled to class-d amplifier by using the TB class that is the original linear high-efficiency technology.
The amplifier contributes to the safety, high reliability and low-power consumption of products for customer.

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 Prevention
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
49W 45W KB** 26dB/
16dB




 
 


HZIP25
CD0.13μm 45W  40W  AB 26dB  
 
   
   
HZIP25
HSOP36
49W 44W AB 26dB   *  


 


HZIP25
49W 44W AB 26dB   *  
 
 


HZIP25
49W 45W AB 26dB  


 
 


HZIP25
49W 45W TB*** 26dB/
16dB

*

 
 


HSOP36
45W 40W TB*** 26dB/
16dB

*

 
   

HSOP36

* Full time output DC offset detection(TOSHIBA Patent)
** KB: Knitted BTL(Bridge Tied Load)
*** TB: Tied BTL(Bridge Tied Load)

 

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 5W 3W AB

26dB

(variable)





Vehicle Sound for Pedestrian TSSOP16 MP

Technical topics

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

Test Condition

Vcc=13.2V, f=1kHz, RL=4Ω, Pout=0.4W x 4ch operated, Ta=25℃,
Heat sink Thermal resistance : 6.5℃/W (Size : 85×85×2mm at Aluminum)

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)

Documents

Catalog

名稱

應用

IVI (In-vehicle Infotainment)
ADAS (Advanced Driver-Assistance Systems)

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