TB2926HQ Toshiba, TB2926HQ Datasheet

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TB2926HQ

Manufacturer Part Number
TB2926HQ
Description
Manufacturer
Toshiba
Datasheet

Specifications of TB2926HQ

No. Of Channels
4
Package
HZIP 25-P-1.00F
Recommended Vcc (v)
13.2
Rl=2 Ohm
Not Supported
Rl=4 Ohm
43W x 4
Rl=8 Ohm
-
Features/built-in Functions
4 BTL channels, standby switch, mute, low-RON BiCD process, DC offset detection
Operating Voltage (v)
9 to 18
45 W × 4-ch BTL Audio Power IC
audio applications.
stage, offering maximum output power (P
protection features.
Features
The TB2926HQ 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: 0.007% (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
OUT
OUT
OUT
OUT
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
= 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) = 45 W (typ.)
MAX (2) = 43 W (typ.)
(1) = 26 W (typ.)
(2) = 23 W (typ.)
(V
NO
CC
= 60 µVrms (typ.)
= 13.2 V, R
TOSHIBA Bi-CMOS Linear Integrated Circuit Silicon Monolithic
CC
g
CC
= 0 Ω, BW = 20 Hz to 20 kHz, R
= 13.2 V, f = 1 kHz, P
(opr) = 8.0 to 18 V (R
TB2926HQ
OUT
L
L
L
L
MAX) of 45 W.
= 4 Ω)
= 4 Ω)
= 4 Ω)
= 4 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.)
TB2926HQ
2006-11-27

Related parts for TB2926HQ

TB2926HQ Summary of contents

Page 1

... TOSHIBA Bi-CMOS Linear Integrated Circuit Silicon Monolithic 45 W × 4-ch BTL Audio Power IC The TB2926HQ 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 TB2926HQ +B Out1 (+) 9 PW-GND1 Out1 (−) 7 Out2 (+) 5 PW-GND2 Out2 (−) 3 Out3 (+) 17 PW-GND3 Out3 (−) 19 Out4 (+) 21 ...

Page 3

... VCC Figure 1 Setting Pin 4 High Turns on Relay V CC – Conventional Method – From microcontroller Battery Standby V CC – Using the Standby Switch – Figure 2 Standby Switch 3 TB2926HQ 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 − TB2926HQ ATT – V MUTE 1 1.5 2 2.5 3 (V) MUTE (V) MUTE 2006-11-27 ...

Page 5

... GND Voltage at (A) (pin 25) GND Voltage at (B) (LPF output) GND − bias TB2926HQ 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 TB2926HQ 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 TB2926HQ can detect such a condition. The negative ( − ) speaker connection is shorted to ground through a low-impedance path due to some irregularities. ...

Page 7

... Note 4: An abnormal DC offset voltage is incurred when the input bias to the power IC is lost due to a leakage current from a coupling capacitor at the input or a short-circuit between the IN and adjacent lines. (in case of a layer short-circuit of the speaker) The short-circuit protection is activated Speaker Impedance About 1 Ω 4 Ω Figure 8 7 TB2926HQ 2006-11-27 ...

Page 8

... Pop Noise Suppression Since the TB2926HQ 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 9

... Standby condition, V4=0,V22=0 SB  POWER  POWER: OFF SB  MUTE: OFF M  Ω MUTE: ON TB2926HQ Min Typ. Max  160 320   45   43   39   26   0.007 0.07 ...

Page 10

... P25-Sat (pin 25 = low Ripple TAB V V CC2 CC1 IN1 11 IN2 12 Pre-GND 13 IN3 15 16 AC-GND IN4 14 4 Stby 22 Mute Offset/short 10 TB2926HQ Min Typ. Max  85 100   250 ± 1.0 ± 1.5 ± 2.0  2.0 4.5 s  100 500 + B Out1 ( + ) 9 PW-GND1 = 4 ohm Out1 ( − ...

Page 11

... 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 11 TB2926HQ THD – P (ch2) OUT : 400 kHz 0 100 Output power P (W) OUT THD – P (ch4) OUT : 400 kHz 0 ...

Page 12

... 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 12 TB2926HQ THD – P (ch2) OUT 13 0 100 Output power P (W) OUT THD – P (ch4) OUT 13 0 ...

Page 13

... P OUT = filter 0 0.01 0.003 2 ch 0.001 100 k 0.01 0.1 frequency f (Hz 13 Ω Vrip = 0.775 Vrms (0dBm) −20 −40 −60 3ch 2ch −80 100 0.01 0.1 frequency f (Hz) 13 TB2926HQ THD – 100 R.R. – f 4ch 1ch 1 10 100 2006-11-27 ...

Page 14

... 120 100 Ambient temperature Ta (°C) 14 TB2926HQ V – P (ch2) IN OUT 100 Hz 20 kHz 1 kHz 13 Ω No filter Input voltage V (Vrms – P (ch4) IN OUT 100 Hz 10 kHz 1 kHz ...

Page 15

... 620 Ω −20 −40 −60 CT (3-1) CT (4-3) −80 100 kHz Ω 4ch drive 100 TB2926HQ C.T. – f (ch2) CT (2-1) CT (2-3) CT (2-4) 100 100 k frequency f (Hz) C.T. – f (ch4) CT (4-1) CT (4-2) 100 100 k frequency f (Hz) P – ...

Page 16

... Package Dimensions Weight: 7.7 g (typ.) 16 TB2926HQ 2006-11-27 ...

Page 17

... IC chip. 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. 17 TB2926HQ 2006-11-27 ...

Page 18

... 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 18 TB2926HQ 060116EBA 021023_E 2006-11-27 ...

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