tb2923ahq TOSHIBA Semiconductor CORPORATION, tb2923ahq Datasheet

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tb2923ahq

Manufacturer Part Number
tb2923ahq
Description
51 W ? 4-ch Btl Audio Power Ic
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
51 W × 4-ch BTL Audio Power IC
audio applications.
stage, offering maximum output power (P
protection features.
Features
The TB2923AHQ is a four-channel BTL power amplifier for car
This IC has a pure complementary P-ch and N-ch DMOS output
It includes a standby switch, mute function and various
High output power
Low THD: 0.005% (typ.) (V
Low noise: V
Standby switch (pin 4)
Mute function (pin 22)
Output DC offset detection (pin 25)
Various protection features
Thermal overload; overvoltage; output short-circuits to GND, V
Operating supply voltage: V
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
P
(V
P
(V
P
(V
P
(V
P
(V
OUT
OUT
OUT
OUT
OUT
CC
CC
CC
CC
CC
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.
= 15.2 V, f = 1 kHz, JEITA max, R
= 13.7 V, f = 1 kHz, JEITA max, R
= 14.4 V, f = 1 kHz, JEITA max, R
= 14.4 V, f = 1 kHz, THD = 10%, R
= 13.2 V, f = 1 kHz, THD = 10%, R
MAX (1) = 51 W (typ.)
MAX (2) = 45 W (typ.)
MAX (3) = 80 W (typ.)
(1) = 29 W (typ.)
(2) = 25 W (typ.)
(V
NO
CC
= 50 μVrms (typ.)
= 13.2 V, R
TOSHIBA Bi-CMOS Linear Integrated Circuit Silicon Monolithic
:V
CC
CC
g
CC
= 0 Ω, BW = 20 Hz to 20 kHz, R
(opr) =8.0 to 16V (R
= 13.2 V, f = 1 kHz, P
(opr) = 8.0 to 18 V (R
TB2923AHQ
OUT
L
L
L
L
L
MAX) of 51 W.
= 4 Ω)
= 4 Ω)
= 2 Ω)
= 4 Ω)
= 4 Ω)
L
= 2 Ω)
OUT
L
1
= 4 Ω)
= 5 W, R
L
= 4 Ω)
CC
L
= 4 Ω)
and across the load; speaker current limiting
Weight: 7.7 g (typ.)
TB2923AHQ
2009-01-29

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tb2923ahq Summary of contents

Page 1

... TOSHIBA Bi-CMOS Linear Integrated Circuit Silicon Monolithic 51 W × 4-ch BTL Audio Power IC The TB2923AHQ 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 (P It includes a standby switch, mute function and various protection features ...

Page 2

... Some of the functional blocks, circuits or constants may be omitted from the block diagram or simplified for explanatory purposes Ripple TAB V V CC2 CC1 IN1 11 IN2 12 13 Pre-GND IN3 15 16 AC-GND IN4 14 4 Stby 22 Mute Offset/short 2 TB2923AHQ +B Out1 (+) 9 PW-GND1 Out1 (−) 7 Out2 (+) 5 PW-GND2 Out2 (−) 3 Out3 (+) 17 PW-GND3 Out3 (−) 19 Out4 (+) 21 ...

Page 3

... Figure 1 Setting Pin 4 High Turns on 2.9 to VCC Relay V CC – Conventional Method – From microcontroller Battery Standby V CC – Using the Standby Switch – Figure 2 Standby Switch 3 TB2923AHQ kΩ 4 ≈ Bias filter network Power Battery From microcontroller Battery ...

Page 4

... 13 kHz Ω 20dBm − 400 kHz −40 −60 −80 Mute On/Off −100 control −120 0 0.5 Pin 22 control voltage: V Figure 4 Mute Attenuation − TB2923AHQ ATT – V MUTE 1 1.5 2 2.5 3 (V) MUTE (V) MUTE 2009-01-29 ...

Page 5

... Amp output GND Voltage at (A) (pin 25) GND Voltage at (B) (LPF output) GND − bias TB2923AHQ Positive DC offset (+) (caused (normal DC voltage) CC Negative DC offset (−) (caused LPF To a microcontroller B The microcontroller shuts down the system if the output is lower than the specified voltage ...

Page 6

... Layer Short Detection The TB2923AHQ may be properly connected to a load such as a 4-Ω speaker, but one of the speaker lines may be shorted to ground through a low-impedance path. The TB2923AHQ can detect such a condition. The negative (−) speaker connection is shorted to ground through a low-impedance path due to some irregularities. ...

Page 7

... Pop Noise Suppression Since the TB2923AHQ uses the AC-GND pin (pin 16) as the common input reference voltage pin for all amplifiers, the ratio of the input capacitance (C1) to the AC-to-GND capacitance (C6) should be 1:4. Also, if power is removed before C1 and C6 are completely charged, pop noise will be generated because of unbalanced DC currents ...

Page 8

... Standby condition, V4=0,V22=0 SB ⎯ POWER ⎯ POWER: OFF SB ⎯ MUTE: OFF M ⎯ kΩ MUTE: ON TB2923AHQ Min Typ. Max ⎯ 180 300 ⎯ ⎯ 51 ⎯ ⎯ 45 ⎯ ⎯ 80 ⎯ ⎯ 29 ⎯ ⎯ 0.005 0.07 ...

Page 9

... Ripple TAB V V CC2 CC1 IN1 11 IN2 12 13 Pre-GND IN3 15 16 AC-GND IN4 14 4 Stby 22 Mute Offset/short 9 TB2923AHQ Min Typ. Max ⎯ 85 100 ⎯ ⎯ 250 ±1.0 ±1.5 ±2.0 ⎯ ⎯ 2.5 s ⎯ 100 500 +B Out1 (+) 9 PW-GND1 = 4 ohm Out1 (− ...

Page 10

... kHz : 400 kHz 1 0.5 10 kHz 0.3 0.1 0.05 0.03 1 kHz 0. 100 Hz 0.005 0.003 0.001 30 50 100 0.1 0.3 10 TB2923AHQ THD – P (ch2) OUT : 400 kHz 0 100 Output power P (W) OUT THD – P (ch4) OUT : 400 kHz 0 ...

Page 11

... Ω kHz 13 Filter 400 kHz 0.5 0.3 0.1 0.05 0.03 0.01 0.005 0.003 0.001 30 50 100 0.1 0.3 11 TB2923AHQ THD – P (ch2) OUT 13 0 100 Output power P (W) OUT THD – P (ch4) OUT 13 0 ...

Page 12

... 13 Ω OUT = filter 0.3 0.1 0.03 1 ch 0.003 0.001 100 k 0.01 0.1 frequency f (KHz 13 Ω Vrip = 0.775 Vrms (0dBm) −20 −40 −60 −80 100 0.01 0.1 frequency f (KHz) 12 TB2923AHQ THD – 100 R.R. – ch 100 2009-01-29 ...

Page 13

... Input voltage V 120 100 Ambient temperature Ta (°C) 13 TB2923AHQ – P (ch2) OUT 13 Ω No filter (Vrms) IN – P (ch4) OUT 100Hz,-20kHz 13 Ω No filter (Vrms) ...

Page 14

... 620 Ω −20 −40 CT (3-4) CT (4-2) −60 CT (4-3) −80 100 kHz Ω 4ch drive 100 TB2923AHQ C.T. – f (ch2) CT (2-1) CT (2-4) CT (2-3) 100 100 k frequency f (Hz) C.T. – f (ch4) CT (4-1) 100 100 k frequency f (Hz) P – OUT ...

Page 15

... Package Dimensions Weight: 7.7 g (typ.) 15 TB2923AHQ 2009-01-29 ...

Page 16

... 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 16 TB2923AHQ 2009-01-29 ...

Page 17

... Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product. Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. 17 TB2923AHQ 2009-01-29 ...

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