TB2959HQ
Bi-CMOS Linear Integrated Circuit Silicon Monolithic
TB2959HQ
Maximum Power 47W BTL 4-ch Audio Power IC
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TB2959HQ
Bi-
CMOS Linear Integrated Circuit Silicon Monolithic
TB2959HQ
Maximum Power 47W BTL 4-ch Audio Power IC
1. Description
The TB2959HQ 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 47W. It includes a standby switch, mute function and various protection features.
2. Applications
Power IC developed for car audio applications.
Weight: 7.7 g (typ.)
3. Features
High output power, low distortion, and low noise property (for details, refer to the Table 1)
Build-in AUX-IN (pin25)
Built-in various mute functions (low
voltage, standby on/off)
Built-in standby switch (pin4)
Built-in mute switch (pin22)
Built-in various protection circuits (thermal shut down, over-
voltage, short to GND, short to VCC, and output to
output short)
Table1 typical Characteristics
(Note1,Note2)
Condition
Typ. Unit
Output power (POUT)
VCC = 15.2 V, JEITA max
47
VCC = 14.4 V, JEITA max
42
VCC = 14.4 V, THD = 10%
27
THD = 10%
23
W
Total harmonic distortion (THD)
POUT = 5 W
0.005 %
Output noise
voltage (VNO) (Rg = 0 Ω),
BW = 20 Hz to 20 kHz
50 µV
Operating Supply
voltage range (VCC)
RL = 4 Ω
6 to 18 V
Note1: Typical test conditions: VCC = 13.2 V, f = 1 kHz, RL = 4 Ω, GV = 26 dB, Ta = 25°C; unless otherwise specified. Note2: Rg: signal source resistance
1 2011-11-08
4. Block Diagram
TB2959HQ
Note3: Some of the functional blocks...
