TB2904数据手册Toshiba中文资料规格书

描述 Description

Maximum Power 43 W BTL × 4-ch Audio Power ICThe TB2904H (o) is 4-ch BTL audio amplifier for car audio applications.
This IC can generate higher power: POUT MAX = 43 W as it includes the pure complementary P-ch and N-ch DMOS output stage.
It is designed to yield low distortion ratio for 4-ch BTL audio power amplifier, built-in standby function, muting function, and various kinds of protectors.
Additionally, Off-set detector is built in.

特性 Features

• High power output
   : POUT MAX
= 43 W (typ.)
      P (VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 Ω)
   : POUT MAX (2) = 39 W (typ.)
      (VCC = 13.7 V, f = 1 kHz, JEITA max, RL = 4 Ω)
   : POUT
= 26 W (typ.)
      (VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
   : POUT (2) = 23 W (typ.)
      (VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
• Low distortion ratio:
   THD = 0.015% (typ.)
   (VCC = 13.2 V, f = 1 kHz, POUT = 5 W, RL = 4 Ω)
• Low noise:
   VNO = 90 µVrms (typ.)
   (VCC = 13.2 V, Rg = 0 Ω, BW = 20 Hz to 20 kHz, RL = 4 Ω)
• Built-in standby switch function (pin 4)
• Built-in muting function (pin 22)
• Built-in Off-set detection function (pin 25)
• Built-in various protection circuits:
   Thermal shut down, overvoltage, out to GND, out to VCC, out to out short, speaker burned
• Operating supply voltage: VCC (opr) = 9 to 18 V (RL = 4 Ω)