描述 Description

The TB2912HQ is 4ch audio amplifier for car audio application.\r
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This IC can generate high power, high quality sound output, POUT MAX=41 W, using a pure complementary P-ch and N-ch DMOS output stage.\r
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The built-in self diagnosis function which is included can be controlled via IC BUS.\r
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In addition, stand-by and mute function, and various Protection feature are included.

特性 Features

? High power output\r
: POUT MAX (1) = 41 W (typ.)\r
(VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 ?)\r
: POUT MAX (2) = 37 W (typ.)\r
(VCC = 13.7 V, f = 1 kHz, JEITA max, RL = 4 ?)\r
: POUT MAX (3) = 70 W (typ.)\r
(VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 2 ?)\r
: POUT (1) = 27 W (typ.)\r
(VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 ?)\r
: POUT (2) = 23 W (typ.)\r
(VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 ?)\r
: POUT (3) = 46 W (typ.)\r
(VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 2 ?)\r
? Low distortion ratio: THD = 0.015% (typ.)\r
(VCC = 13.2 V, f = 1 kHz, POUT = 5 W, RL = 4 ?)\r
? Low noise: VNO = 90 μVrms (typ.)\r
(VCC = 13.2 V, Rg = 0 ?, BW = 20 Hz to 20 kHz, RL = 4 ?)\r
? Built in stand by & muting function: controlled via I2C Bus (pin 16)\r
? Built in clipping detection (pin 4)\r
? Built in I2C Bus for stand-by, mute, voltage gain control, self diagnosis: Output short detection, offset detection, tweeter or speaker open detection (pin 22 and 25)\r
? Built-in various protection circuits (Note 1, Note 2)\r
Thermal shut down, over-voltage, out to GND, out to VCC, out to out short circuit\r
? Operating supply voltage: VCC (opr) = 9 to 18 V (RL = 4 ?)\r
VCC (opr) = 9 to 16 V (RL = 2 ?) \r