TB2939HQ Просмотр технического описания (PDF) - Toshiba

Номер в каталоге

Компоненты Описание

производитель

TB2939HQ

45W ×4-ch BTL Audio Power IC

Toshiba 

TB2939HQ

TOSHIBA Bi-CMOS Linear Integrated Circuit Silicon Monolithic

TB2939HQ(TENTATIVE)

45W × 4-ch BTL Audio Power IC

The TB2939HQ is a four-channel BTL power amplifier for car

audio applications.

This IC has a pure complementary P-ch and N-ch DMOS output

stage, offering maximum output power (POUT MAX) of 45 W.

It includes a standby switch, mute function and various

protection features.

Features

• High output power

• POUT MAX (1) = 45 W (typ.)

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

Weight: 7.7 g (typ.)

• 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)

Note 1: Install the device correctly. Otherwise, the device or system may be degraded, damaged or even destroyed.

Note 2:

The protection features are intended to avoid output short-circuits or other abnormal conditions temporarily. It

is not guaranteed that they will prevent the IC from being damaged.

Exposure to conditions beyond the guaranteed operating ranges may not activate the protection features,

resulting in an IC damage due to output short-circuits.

1

Rev-1.0 2009-01-21

Share Link: