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PDF TB2932HQ Data sheet ( Hoja de datos )
| Número de pieza | TB2932HQ | |
| Descripción | Maximum Power 49 W BTL X 4-ch Audio Power IC | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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TOSHIBA Bi-CMOS Linear Integrated Circuit Silicon Monolithic
TB2932HQ
TB2932HQ
Maximum Power 49 W BTL × 4-ch Audio Power IC
The TB2932HQ is 4ch audio amplifier for car audio application.
This IC can generate high power, high quality sound output,
POUT MAX = 49 W, using a pure complementary P-ch and N-ch
DMOS output stage.
The built-in self diagnosis function which is included can be
controlled via I2C BUS.
In addition, stand-by and mute function, and various protection
feature are included.
Features
• High power output
: POUT MAX (1) = 49 W (typ.)
(VCC = 15.2 V, f = 1 kHz, JEITA max, RL = 4 Ω)
: POUT MAX (2) = 43 W (typ.)
(VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 Ω)
: POUT MAX (3) = 70 W (typ.)
(VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 2 Ω)
: POUT (1) = 27 W (typ.)
(VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
: POUT (2) = 23 W (typ.)
(VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
: POUT (3) = 45 W (typ.)
(VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 2 Ω)
http://www.DataSheet4U.com/
Weight: 7.7 g (typ.)
• Low distortion ratio:
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)
• Built in stand by & muting function: controlled via I2C Bus (26/12dB)
• Built in clipping detection (pin 4)
• Built in I2C Bus for stand-by, mute, voltage gain control, self diagnosis: Output short detection, offset detection,
tweeter or speaker open detection (pin 22 and 25)
• Built-in various protection circuits (Note 1, Note 2)
Thermal shut down, over-voltage, out to GND, out to VCC, out to out short circuit
• Operating supply voltage: VCC (opr) = 8 to 18 V (RL = 4 Ω)
VCC (opr) = 8 to 16 V (RL = 2 Ω)
Note 1: Install the product correctly. Otherwise, it may result in break down, damage and/or degradation to the
product or equipment.
Note 2: These protection functions are intended to avoid some output short circuits or other abnormal conditions
temporarily. These protect functions do not warrant to prevent the IC from being damaged.
- In case of the product would be operated with exceeded guaranteed operating ranges, these protection
features may not operate and some output short circuits may result in the IC being damaged.
1 2009-02-02
1 page  
5.Explanation for Self Diagnosis Via I2C
Bus map
【Slave Address】
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2
Bit1
1101100
Bit0
0 Write Mode
1 Read Mode
⎯
Details
TB2932HQ
Hex
D8H
【WRITE】
• Sub address
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
Details
0 Page Mode (auto increment) OFF
1 Page Mode (auto increment) ON
⎯ 0 0 0 0 0 0 1 Control Byte1
⎯ 0 0 0 0 0 1 0 Control Byte2
• Control byte1 (01H)
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
Function
0 0 0 0 0 0 0 1 Clip Det 1% to 10% change
0 0 0 0 0 0 1 0 Rch Muting off (play)
0 0 0 0 0 1 0 0 Fch Muting off (play)
0 0 0 0 1 0 0 0 Rch Gain 26dB to 12dB
0 0 0 1 0 0 0 0 Fch Gain 26dB to 12dBhttp://www.DataSheet4U.com/
0 0 1 0 0 0 0 0 Offset Det Enable
0 1 0 0 0 0 0 0 Diag Cycle Enable
1 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ Turn-on Select (normal/repeatedly)
Hex
01H
02H
• Control byte2 (02H)
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
Function
0 0 0 0 0 0 0 1 Rare short DET
0 0 0 0 0 0 1 0 Soft Mute delay time (40ms/20ms)
0 0 0 0 0 1 0 0 Current Detection Enable
0 0 0 0 1 0 0 0 Line Drive Diag
0 0 0 1 0 0 0 0 Stand By OFF (play)
0 0 1 0 0 0 0 0 Clip Det Pin change to Offset Det
⎯ 1 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ Fast mute ON/OFF
1
0
0
0
0
0
0
0
Current Detection. Level change from 500 mA
(max) to 300 mA (max)
Note 4: Self mute circuit is included on chip and is in independent from I2C bus stage.
Self mute operating voltage is VCC = 7.6 V(rise),7.3V(falls)
Note 5: Auto Increment is available.
If control byte 1 is chosen by sub address, it is not necessary to send byte 2 in cases when both byte 1 and
2 are to be written.
Ex) In case of sub address = byte1 chosen:
Sub address byte 1 → byte 1 writing → Sub address byte 2 → byte 2 writing: available
Sub address byte 1 → byte 1 writing ---------------------------- → byte 2 writing: available
5 2009-02-02
5 Page 
TB2932HQ
Description for permanent diagnosis
This IC can provide permanent diagnosis under the following conditions, whether they occur before
or after turning ON:
-Short to GND
-Short to VCC
-Output to output short circuit
-Output offset detection
-Current detection for tweeter open
This permanent diagnosis is available not only with the diagnostic cycle byte: IB1 D6 set at 1 but
also when set at 0.
Additionally, the signal can be obtained by entering just a read command. It is not necessary to
write the data.
With permanent diagnosis fault detection, the first read data after fault removal will still show a
Fault. Therefore, it is necessary to obtain 3 or more readings in order to prevent a miss judgment.
For example, the speaker sometimes makes a large counter electro motive force which this IC could
recognize as a fault event.
Additionally, this permanent diagnosis is automatically on after the turning on diagnosis operation
finished therefore there is no need to send the extra command.
WRITE DATA
READ DATA
READ DATA
result faulty
READ DATA
result faulty
READ DATA
result not faulty
Pin10
ripple
voltage
Permanent diagnostic DATA
permitted time
Turn On diagnostic
DATA permitted time
Turn On diagnostic
acquisition time (80 ms typ.)
http://www.DataSheet4U.com/
FAULT
event
FAULT
removed
Figure 5 Permanent Diagnosis Timing Chart for Each Short Detection
11 2009-02-02
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TB2932HQ.PDF ] | |
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