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TB2905HQ

Features: • High output power : POUT MAX (1) = 47 W (typ.) (VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 ): POUT MAX (2) = 43 W (typ.) (VCC = 13.7 V, f = 1 kHz, JEITA max, RL = 4 ): POUT Pout MAX (3) = 80 W (typ.) (VCC = 14.4V, f = 1 kHz, JEITA max, RL = 2 ) : POUT (1) = 29 W (typ.) (VCC = 14....

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SeekIC No. : 004512607 Detail

TB2905HQ: Features: • High output power : POUT MAX (1) = 47 W (typ.) (VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 ): POUT MAX (2) = 43 W (typ.) (VCC = 13.7 V, f = 1 kHz, JEITA max, RL = 4 ): POUT Pout MA...

TB2905HQ Data Sheet

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Part Number:
TB2905HQ
Supply Ability:
5000

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  • 1~5000
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  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• High output power
   : POUT MAX (1) = 47 W (typ.)
     (VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 )
   : POUT MAX (2) = 43 W (typ.)
     (VCC = 13.7 V, f = 1 kHz, JEITA max, RL = 4 )
   : POUT Pout MAX (3) = 80 W (typ.)
     (VCC = 14.4V, f = 1 kHz, JEITA max, RL = 2 )
   : POUT (1) = 29 W (typ.)
     (VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 )
   : POUT (2) = 25 W (typ.)
     (VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 )
   : POUT (3) = 55 W (typ.)
     (VCC = 14.4 V, f = 1 kHz, THD = 10%,RL = 2 )
• Low distortion ratio
   : THD = 0.03% (typ.)
     (VCC = 13.2 V, f = 1 kHz, GV = 26dB, POUT = 2 W, RL = 4 )
• Low noise
   : VNO = 120 Vrms (typ.)
     (VCC = 13.2 V, GV = 26dB, Rg = 0 , BW = 20 Hz~20 kHz, RL = 4 )
• Built-in standby (pin 4) and muting (pin22) functions
• Built-in offset/clipping detection (pin 25)
• Protective circuits: Thermal shutdown, overvoltage, out to GND, out to VCC, out to out short
• Operating supply voltage: VCC (opr) = 9 to 18 V (RL = 4 )


Specifications

Characteristics Symbol Rating Unit
Peak supply voltage (0.2 s) VCC (surge) 50 V
DC supply voltage VCC (DC) 25 V
Operating supply voltage VCC (opr) 18 V
Output current (peak) IO (peak) 9 A
Power dissipation PD (Note 5) 125 W
Operating temperature Topr −40~85  
Storage temperature Tstg −55~150  
Note 5: Package thermal resistance (jT = 1/W) (Ta = 25, with infinite heat sink)
The absolute maximum ratings of a semiconductor device are a set of specified parameter values which must
not be exceeded during operation, even for an instant.
Exposure to conditions beyond those listed above may cause permanent damage to the device or affect device
reliability, which could increase potential risks of personal injury due to IC blowup and/or burning.
The equipment manufacturer should design so that no maximum rating value is exceeded with respect to
current, voltage, power dissipation, temperature, etc.
Ensuring that the parameter values remain within these specified ranges during device operation will help to
ensure that the integrity of the device is not compromised.


Description

The TB2905HQ is a high-efficiency class KB power amplifier IC developed for car audio applications that incorporates four BTL amplifier channels.

It employs a pure complementary DMOS output stage consisting of P-ch upper and N-ch lower sections, offering a maximum output power (POUT) of 47 W.

Class KB (keyed BTL) amplifiers exhibit less than half the heat generation of comparable class AB solutions under normal operating conditions. Therefore, it is possible to design a smaller heatsink and maintain lower internal temperature in the car audio sets.

Additionally, the TB2905HQ has many built-in functions for car audio, such as standby switching, muting, protective circuits, and self diagnosis.




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