TB2912HQ Toshiba, TB2912HQ Datasheet
TB2912HQ
Specifications of TB2912HQ
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TB2912HQ Summary of contents
Page 1
... TOSHIBA Bi-CMOS Digital Integrated Circuit Silicon Monolithic Maximum Power 41 W BTL × 4-ch Audio Power IC The TB2912HQ is 4ch audio amplifier for car audio application. This IC can generate high power, high quality sound output, P MAX = 41 W, using a pure complementary P-ch and N-ch OUT DMOS output stage. ...
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... Some of the functional blocks, circuits, or constants labels in the block diagram may have been omitted or simplified for clarity TAB V V CC2 CC1 Out1 (+) 9 PW-GND1 8 7 Out1 (−) Out2 (+) 5 PW-GND2 2 3 Out2 (−) Out3 (+) 17 PW-GND3 18 19 Out3 (−) Out4 (+) 21 PW-GND4 24 23 Out4 (− Bus Diagnosis 2 TB2912HQ + SCL SDA 2006-04-28 ...
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... Amp. 2A Amp. 1 Amp. 2B Figure 1 Block Diagram = 0dB V1 = 20dB V2 = 6dB V (BTL 26dB C, G changed from 0dB to −14dB so that the output 2 V1 Figure 2 Stand by and Mute 3 TB2912HQ Start mute circuit From low voltage muting circuit 2006-04-28 ...
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... The sensitivity of the circuit to clipping level can be selected T.H. 10% via I In the event that this function is not used, pin4 should be left open circuit. Clip detector Output AC waveform Internal detection circuit Clip Det output GND Waveform L.P.F output 4 L.P.F. smoothing circuit Figure 3 Clip Detection 4 TB2912HQ C bus. 2 Volume control circuit Tone control circuit 2006-04-28 ...
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... Reduces noise and provides sufficient oscillation margin Pop noise becomes larger Pop noise becomes smaller Muting ON/OFF time is Muting ON/OFF time is shorter longer Power supply ripple filtering CC C bus TB2912HQ Notes Pop noise is concerned with this capacitor. transients during engine C mute command. 2 2006-04-28 ...
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... Stand By OFF (play Clip Det Pin change to Offset Det ⎯ ⎯ ⎯ Fast mute ON/OFF Current Detection. Level change from 500 (max) to 300 mA (max bus stage TB2912HQ Details Hex D8H Details Hex 01H 02H Function Function 2006-04-28 ...
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... Ch3 Current Detection (at IB2 enable only) (IB2 − bit = 1: <250 mA, 0: >500 mA (IB2 − bit = 1: <100 mA, 0: >300 mA) ⎯ ⎯ ⎯ Diagnotic status (= IB1 − D6 bit = 1: diag enable) ⎯ ⎯ ⎯ Stand-by status (= IB2 − D4 bit = 1: play) 7 TB2912HQ 2006-04-28 ...
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... Ch4 Short load Ch4 Diagnosis condition (bit = 1: permanent, 0: turn-on Ch4 Current Detection (at IB2 enable only) (IB2 − bit = 1: <250 mA, 0: >500 mA (IB2 − bit = 1: <100 mA, 0: >300 mA) ⎯ ⎯ ⎯ x ⎯ ⎯ ⎯ TB2912HQ 2006-04-28 ...
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... Figure 5 Number of Times Turn ON Diagnosis Timing Chart READ DATA Permanent diagnostic enable Permanent diagnostic DATA permitted time WRITE DATA To become standby off (turning or power ON) READ DATA Turn On diagnostic between On and Off time (100 ms typ.) 9 TB2912HQ READ DATA FAULT event 2006-04-28 ...
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... Short Load, Open Load etc. The Data just received was detected You have to read for an on the previous diagnostic cycle. get a valid reading. Reading 2 When “Diag enable” goes high, “Latch” is reflected at the “Fault event”. 10 TB2912HQ Reading 3 Diag cycle with Turn-ON 2006-04-28 ...
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... Figure 6. WRITE DATA Pin10 ripple pin voltage Figure 6 Turn on Diagnosis Timing Chart when Turn on diagnosis not used. Reading 3 Reading 5 Reading 2 Reading 4 About 100 ms About 80 ms About 80 ms Turn ON diagnosis enable Turn ON diagnosis defeat 11 TB2912HQ Reading 6 voltage. CC 2006-04-28 ...
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... Turn On diagnostic acquisition time (80 ms typ.) Figure 7 Permanent Diagnosis Timing Chart for Each Short Detection READ DATA READ DATA READ DATA result faulty result faulty Permanent diagnostic DATA permitted time FAULT FAULT event removed 12 TB2912HQ READ DATA result not faulty 2006-04-28 ...
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... Hz, and to obtain 2 or more readings in order not to make a misjudgment Additionaly, the threshold level is designed at +/−2 V. READ DATA READ DATA result faulty result not faulty Correct Tvos Correct Tvos Permanent diagnostic DATA permitted time FAULT FAULT event removed 13 TB2912HQ READ DATA result not faulty 2006-04-28 ...
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... Offset detector Vth Output waveform Vth Offset detector output pin 4 Waveform L.P.F output Figure 9 Hardware Output Offset Detection L.P.F. smoothing circuit Abnormal offset occured Volume down Detection delay time 14 TB2912HQ Volume control circuit System shut down Judgement Waiting time for Prevention misjudgement 2006-04-28 ...
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... Note 8: Please arrange to read all self-diagnosis functions twice or more and apply judgment in order to avoid false triggering. <Since the first diagnostic result has low confidence, please diagnose 2 times or more.> mute off READ DATA READ DATA invalidity invalidity Effective → 15 TB2912HQ READ DATA validity validity 2006-04-28 ...
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... S.GND or S.V CC S.GND (Note 10) S.GND or S.V CC S.GND (Note 10) S.V CC S.Load + S.GND TB2912HQ Open L S.GND + No open S.GND S.GND + No open S.GND + S.Load + S.V + S.Load CC CC open or No open S.Load + No open S.Load Open Open L S.GND S.GND (Note 9) S.GND S.GND (Note 9) S ...
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... Amplifier mode diagnostic ( Line driver mode diagnostic ( Current Det. diag enabled ( Current Det. diag defeat ( Front Channels Work standard mode ( Work Low Iccq mode ( Rear Channels Work standard mode ( Work Low Iccq mode ( TB2912HQ 2006-04-28 ...
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... Short load ( Channel 1 Turn-on diag: No open load ( Offset diag: No output offset ( Channel 1 ( short ( Short Channel 1 No short to GND ( Short to GND ( Open load detected ( Output offset detected ( TB2912HQ 2006-04-28 ...
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... Offset diag: No output offset ( Channel 2 ( short ( Short Channel 2 No short to GND ( Short to GND ( Note 12: DBx (D5) is effective only at the time of “Current detection enable”. Open load detected ( Output offset detected ( TB2912HQ 2006-04-28 ...
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... Short load ( Channel 3 Turn-on diag: No open load ( Offset diag: No output offset ( Channel 3 ( short ( Short Channel 3 No short to GND ( Short to GND ( Open load detected ( Output offset detected ( TB2912HQ 2006-04-28 ...
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... Offset diag: No output offset ( Channel 4 ( short ( Short Channel 4 No short to GND ( Short to GND ( Note 13: DBx (D5) is effective only at the time of “Current detection enable”. Open load detected ( Output offset detected ( TB2912HQ 2006-04-28 ...
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... DET circuit 2 SP (short/open) AMP OUT or shorted to GND condition, the voltage between speaker will be CC Possible to play music if the mute off write command is sent at Turn on diag enable at Turn on diag defeat 22 TB2912HQ 5 V Comparator constant current Turn ON diagnosis enable Turn ON diagnosis defeat 2006-04-28 ...
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... ACK IB 1 ACK X0X0000X ACK IB 1 ACK X0XXXXXX ACK IB 1 ACK XX1XX11X . DB1 ACK DB2 ACK DB3 ACK 23 TB2912HQ ACK IB2 ACK STOP DB4 ACK STOP IB2 ACK STOP XXX1X0XX IB2 ACK STOP XXX0XXXX IB2 ACK STOP XXX1X0XX (the results are valid only for the ...
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... I C Bus control format outline The BUS control format of TB2912HQ is based on the Philips I Data Transmission Format S Slave address bit MSB Note 18 transmitting, without forgetting. P conditions. (1) Start conditions & stop conditions SDA SCL S Start conditions (3) Acknowledgement SDA from a master High impedance ...
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... Read mode The slave address became the read mode by changing the 8 Bit of the slave address from The data output from TB2912HQ starts after the micro controller receives the ACK 1 bit which follows a slave address. Stop condition are shown in the under the map. ...
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... Symbol Rating Unit (surge (DC (opr (peak 125 W (Note 19) − °C opr − 150 T °C stg 26 TB2912HQ 2006-04-28 ...
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... For operation, mute enable ⎯ VSM L For mute, stand by OFF Mute: ON ⎯ ATT M = 7.75 Vrms → Mute: OFF V OUT ⎯ Low (01H (1) ⎯ High (01H (2) 27 TB2912HQ Min Typ. Max Unit ⎯ 200 300 mA ⎯ ⎯ 41 ⎯ ⎯ ⎯ ...
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... Test Condition Min ⎯ − 1.2 ⎯ 85 1.5 ⎯ − 1.2 ⎯ 330 6 ⎯ − 1.2 ⎯ ⎯ 250 100 ⎯ 28 TB2912HQ Typ. Max Unit ⎯ 1.2 V ⎯ ⎯ V ⎯ Ω 0.5 ⎯ ⎯ Ω ⎯ Ω 45 ⎯ 1.2 V ⎯ ⎯ V ⎯ Ω 2 ⎯ ⎯ ...
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... TAB V V CC2 CC1 Out1 ( + ) 9 PW-GND1 8 7 Out1 ( − ) Out2 ( + ) 5 PW-GND2 2 3 Out2 ( − ) Out3 ( + ) 17 PW-GND3 18 19 Out3 ( − ) Out4 ( + ) 21 PW-GND4 24 23 Out4 ( − I2C 25 Bus Diagnosis 29 TB2912HQ + SCL SDA 2006-04-28 ...
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... kHz 10 10 kHz : 400 kHz : 400 0.5 0.3 0.1 0.05 0.03 0.01 0.005 0.003 0.001 0.1 0.3 0.5 1 100 Output power P 30 TB2912HQ (ch2) OUT 20 kHz 10 kHz 100 kHz 100 100 (ch4) OUT 20 kHz 10 kHz 100 kHz ...
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... Output power P THD – P 100 26dB Ω kHz Filter 10 400 kHz 0.5 0.3 0.1 0.05 0.03 0.01 0.005 0.003 0.001 100 0.01 0.03 0.1 0.3 Output power P 31 TB2912HQ (ch2) OUT 13 100 (W) OUT (ch4) OUT 13 100 (W) OUT 2006-04-28 ...
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... Frequency f (Hz 13 Ω OUT = filter 0.3 0.1 1ch 0.03 3ch 4ch 0.01 2ch 0.003 0.001 10 100 100 k Frequency f (Hz) 32 TB2912HQ R.R. – f 3ch 4ch 100 k THD – 100 k 2006-04-28 ...
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... Heat sink (RθHS = 3.5°C/W) 100 RθJC + RθHS = 4.5°C/W (3) No heat sink 80 RθJA = 39°C Ambient temperature Ta (°C) 33 TB2912HQ (ch2) OUT 1 kHz 10 kHz kHz 13 Ω No filter (Vrms) IN (ch4) OUT 1 kHz 10 kHz kHz 13 Ω ...
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... Frequency f (Hz kHz Ω 4ch drive 9 100 Output power P 34 TB2912HQ ch1 ch3 ch4 100 k ch3 ch2 ch1 100 k – OUT 13 ...
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... Output power P THD – P 100 26dB Ω kHz Filter 10 400 Hz~30 kHz 0.5 0.3 0.1 0.05 0.03 0.01 0.005 0.003 0.001 100 0.01 0.03 0.1 0.3 Output power P 35 TB2912HQ (ch2) OUT 13 9 100 (W) OUT (ch4) OUT 13 9 100 (W) OUT 2006-04-28 ...
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... P – OUT 100 kHz Ω 4ch drive Output power P (W) OUT 25 36 TB2912HQ 2006-04-28 ...
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... Package Dimensions Weight: 7.7 g (typ.) 37 TB2912HQ 2006-04-28 ...
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... TB2912HQ 2006-04-28 ...
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... In addition, depending on the IC, the use of silicon rubber may be prohibited. Check whether the use of silicon rubber is prohibited for the IC you intend to use, or not. For details of power IC heat radiation design and heat sink installation, refer to individual technical datasheets or IC databooks. 39 TB2912HQ 2006-04-28 ...
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... R-type flux (2) Use of Sn-3.0Ag-0.5Cu solder Bath · solder bath temperature = 245°C · dipping time = 5 seconds · the number of times = once · use of R-type flux 021023_D 021023_B 060106_Q 40 TB2912HQ 060116EBF 021023_E 2006-04-28 ...