TB2906HQ Toshiba, TB2906HQ Datasheet
TB2906HQ
Specifications of TB2906HQ
Available stocks
Related parts for TB2906HQ
TB2906HQ Summary of contents
Page 1
... TOSHIBA Bi-CMOS Digital Integrated Circuit Silicon Monolithic Maximum Power 43 W BTL × 4-ch Audio Power IC The TB2906HQ is 4-ch BTL audio amplifier for car audio applications. This IC can generate higher power: P includes the pure complementary P-ch and N-ch DMOS output stage designed to yield low distortion ratio for 4-ch BTL audio power amplifier, built-in standby function, muting function, and various kinds of protectors ...
Page 2
... PW-GND1 OUT1 (−) OUT2 (+) IN2 PW-GND2 OUT2 (−) OUT3 (+) IN3 PW-GND3 OUT3 (−) OUT4 (+) IN4 PW-GND4 OUT4 (−) OFF-SET RIP STBY MUTE DET TB2906HQ PLAY 1 MUTE : PRE-GND ...
Page 3
... Amp. 2A Amp. 1 Input Amp. 2B Figure 1 Block Diagram = 8dB : 20dB V2 = 6dB V (BTL 34dB V (BTL) (pin 4) ON OFF 1.5 3 Figure 2 With pin 4 set to High, 3 TB2906HQ V CC Power 10 kΩ 4 ≈ BIAS CUTTING CIRCUIT Power is turned ON 2004-03-23 ...
Page 4
... 13 kHz Ω out = 7.75 Vrms (20dBm) −20 −40 −60 −80 Mute ON/OFF −100 control −120 0 Figure 5 Mute Attenuation − TB2906HQ Relay Battery From microcomputer Battery determined on the basic 1 at pin 22 should be 1 ATT – V MUTE 0 ...
Page 5
... Amp output GND Voltage of point (A) GND Voltage of point (B) GND − V bias Figure 7 Wave Form 5 TB2906HQ DC Voltage (+) Amp (at leak (normal DC voltage) CC/2 DC Voltage (−) Amp (at short) (R Offset voltage (at leak or short) L.P.F. To CPU B Threshold level (R V CC/2 Threshold level ( 2004-03- ...
Page 6
... The current more than 4 A flows into the speaker and the speaker is burned. Current into a speaker Less than 4A Note appeared by biased input DC voltage (For example, large leakage of the input capacitor, short-circuit between copper patterns of PCB.) (in case of rare short circuit of speaker) Operating point of protector Speaker Impedance About 1 Ω 4 Ω Figure 8 6 TB2906HQ 2004-03-23 ...
Page 7
... High pop noise. Duration until Low pop noise. Duration until muting function is turned muting function is turned ON/OFF is short ON/OFF is long Power supply ripple filtering Pop noise is suppressed when C1:C6 = 1:4 7 TB2906HQ Notes value Pop noise is generated when Pop noise is generated when ...
Page 8
... SB POWER: OFF SB MUTE: OFF M kΩ MUTE: ON MUTE: ON ATT M = 7.75 Vrms→Mute: OFF V OUT 8 TB2906HQ Min Typ. Max 170 340 43 39 26 0.015 0. −1 ...
Page 9
... OUT1 (−) OUT2 (+) IN2 PW-GND2 OUT2 (−) OUT3 (+) IN3 PW-GND3 OUT3 (−) OUT4 (+) IN4 PW-GND4 OUT4 (−) OFF-SET RIP STBY MUTE DET kΩ TB2906HQ ±1.0 ±1.5 ±2 ...
Page 10
... Hz : ~30 kHz 1kHz 10 10 kHz : 400 Hz kHz : 400 Hz 0.5 0.3 0.1 0.05 0.03 0.01 0.005 0.003 0.001 30 50 0.1 0.3 100 10 TB2906HQ THD – P (ch2) OUT : 400 Hz~30 kHz 20 kHz 10 kHz 0 100 Output power P (W) OUT THD – P (ch4) OUT : 400 Hz~30 kHz 20 kHz 10 kHz ...
Page 11
... 13 Ω kHz Filter 400 Hz~30 kHz 0.5 0.3 16.0 V 0.1 0.05 0.03 0.01 0.005 0.003 0.001 30 50 0.1 0.3 100 11 TB2906HQ THD – P (ch2) OUT 13 9.0 V 16 100 Output power P (W) OUT THD – P (ch4) OUT 13 9.0 V 16 ...
Page 12
... Ω Vrip = 0.775 Vrms (0dBm) −20 −40 2ch −60 −80 0.01 0.1 100 k frequency f (Hz 13 Ω OUT = filter 3 1 0.3 2ch 0.1 0.03 1ch 0.01 0.01 0.1 100 frequency f (Hz) 12 TB2906HQ R.R. – f 1ch 3ch 4ch 1 10 100 THD – f 3ch 4ch 1 10 100 2004-03-23 ...
Page 13
... 120 100 TB2906HQ V – P (ch2) IN OUT 100 Hz 1 kHz 10 kHz kHz 13 Ω No filter Input voltage V (Vrms – P (ch4) IN OUT 100 Hz 1 kHz ...
Page 14
... Ω 4ch drive 100 Output power P 14 TB2906HQ C.T. – f (ch2) ch1 ch3 ch4 100 k frequency f (Hz) C.T. – f (ch4) ch1 ch2 ch3 100 k frequency f (Hz) P – P ...
Page 15
... Package Dimensions Weight: 7.7 g (typ.) 15 TB2906HQ 2004-03-23 ...
Page 16
... The product is often the final stage (the external output stage circuit. Substandard performance or malfunction of the destination device to which the circuit supplies output may cause damage to the circuit or to the product. 16 TB2906HQ 030619EBF 2004-03-23 ...