TB2903HQ中文資料東芝數(shù)據(jù)手冊PDF規(guī)格書

The TB2903HQ is 4-ch BTL audio amplifier for car audio applications.

This IC can generate higher power: POUTMAX = 47 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.

Features

? High power output

: POUTMAX (1) = 47 W (typ.)

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

: POUTMAX (2) = 43 W (typ.)

(VCC= 13.7 V, f = 1 kHz, JEITA max, RL= 4 ?)

: POUT(1) = 29 W (typ.)

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

: POUT(2) = 25 W (typ.)

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

? Low distortion ratio: THD = 0.015 (typ.)

(VCC= 13.2 V, f = 1 kHz, POUT= 5 W, RL= 4 ?

? Low noise: VNO= 90 μVrms (typ.)

(VCC= 13.2 V, Rg= 0 ?, BW = 20 Hz~20 kHz, RL= 4 ?)

? 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

? Operating supply voltage: VCC (opr)= 9~18 V (RL= 4 ?)