TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
Max Power 22W BTL × 4ch Audio Power IC
The TA8255AHQ is 4ch BTL audio power amplifier for consumer
It is designed low distortion ratio for 4ch BTL audio power
amplifier, Built−in stand−by function, muting function and
junction temperature detection circuit.
Additionally, the AUX. amplifier is built−in, it can make the beep
signal etc. Output to 2 channels (out1 and 4).
It contains various kind of protectors for car audio.
Weight: 9.8g (typ.)
• High power
: POUT (max) = 22 W (typ.)
(VCC = 13.7 V, f = 1 kHz, RL = 4 Ω)
: POUT (1) = 17 W (typ.)
(VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
: POUT (2) = 14 W (typ.)
(VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
• Low distortion ratio
: THD = 0.02% (typ.)
(VCC = 13.2 V, f = 1 kHz, POUT = 3 W, RL = 4 Ω)
• Low noise
: VNO = 0.10 mVrms (typ.)
(VCC = 13.2 V, Rg = 0 Ω, GV = 34 dB, BW = 20~20 kHz)
• Built−in stand−by switch function (pin(2))
• Built−in muting function (pin(1), (25))
• Built−in AUX. amplifier from single input to 2 channels output (pin(16))
• Built−in junction temperature detection circuit (pin(24))
: Pin(24) DC voltage rises at about + 10 mV / °C in proportion to junction temperature.
• Built−in various protection circuit
: Thermal shut down, Over voltage, Out to GND, Out to VCC, Out to Out short
• Operating supply voltage
: VCC (opr) = 9~18 V
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