TB2939HQ中文资料东芝数据手册PDF规格书

特性 Features

• High output power

• POUT MAX (1) = 45 W (typ.)

(VCC = 15.2 V, f = 1 kHz, JEITA max, RL = 4 Ω)

• POUT MAX (2) = 41 W (typ.)

(VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 Ω)

• POUT (1) = 24 W (typ.)

(VCC = 14.4 V, f = 1 kHz, THD = 10, RL = 4 Ω)

• POUT (2) = 21 W (typ.)

(VCC = 13.2 V, f = 1 kHz, THD = 10, RL = 4 Ω)

• Low THD: 0.007 (typ.) (VCC = 13.2 V, f = 1 kHz, POUT = 5 W, RL = 4 Ω)

• Low noise: VNO = 60 μVrms (typ.)

(VCC = 13.2 V, Rg = 0 Ω, BW = 20 Hz to 20 kHz, RL = 4 Ω)

• Standby switch (pin 4)

• Mute function (pin 22)

• Built-in diagnosis circuit include output DC offset detection (pin 25)

• Various protection features

Thermal overload; overvoltage; output short-circuits to GND, VCC and across the load; speaker current limiting

• Operating supply voltage: VCC (opr) = 8.0 to 18 V (RL = 4 Ω)