TA8271HQ

Features:

• High power : POUTMAX (1) = 41 W (typ.)
   (V_CC = 14.4 V, f = 1 kHz, JEITA max, R_L = 4 Ω)
   : POUTMAX (2) = 37 W (typ.)
   (V_CC = 13.7 V, f = 1 kHz, JEITA max, R_L = 4 Ω)
   : POUT (1) = 24 W (typ.)
   (V_CC = 14.4 V, f = 1 kHz, THD = 10%, R_L = 4 Ω)
   : POUT (2) = 21 W (typ.)
   (V_CC = 13.2 V, f = 1 kHz, THD = 10%, R_L = 4 Ω)
• Low distortion ratio: THD = 0.02% (typ.)
  (V_CC = 13.2 V, f = 1 kHz, POUT = 5 W, R_L = 4 Ω)
• Low noise: VNO = 0.18 mVrms (typ.)
   (V_CC = 13.2 V, Rg = 0 Ω, GV = 34dB, BW = 20 Hz~20 kHz)
• Built-in stand-by switch function (pin 4)
• Built-in muting function (pin 22)
• Built-in AUX amplifier from single input to 2 channels output (pin 16)
• Built-in various protection circuit
   : Thermal shut down, over voltage, out to GND, out to VCC, out to out short
• Operating supply voltage: V_CC (opr) = 9~18 V


Specifications

Characteristics	Symbol	Rating	Unit
Peak supply voltage (0.2 s)	VCC (surge)	50	V
DC supply voltage	VCC (DC)	25	V
Operation supply voltage	VCC (opr)	18	V
Output current (peak)	IO (peak)	9	A
Power dissipation	PD (Note 5)	125	W
Operation temperature	Topr	-40~85	°C
Storage temperature	Tstg	-55~150	°C

Note5: Package thermal resistance j-T = 1°C/W (typ.) (Ta = 25°C, 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. If any of these rating would be exceeded during operation, the device electrical characteristics may be irreparably altered and the reliability and lifetime of the device can no longer be guaranteed. Moreover, these operations with exceeded ratings may cause break down, damage and/or degradation to any other equipment. Applications using the device should be designed such that each maximum rating will never be exceeded in any operating conditions. Before using, creating and/or producing designs, refer to and comply with the precautions and conditions set forth in this documents.

Description

The TA8271HQ is 4 ch BTL audio power amplifier for car audio application.

This IC can generate more high power: POUTMAX = 41 W as it is included the pure complementary PNP and NPN transistor output stage.

TA8271HQ is designed low distortion ratio for 4 ch BTL audio power amplifier, built-in stand-by function and muting function. Additionally, the AUX amplifier and various kind of protector for car audio use is built-in.