tb2921ahq TOSHIBA Semiconductor CORPORATION, tb2921ahq Datasheet
tb2921ahq
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tb2921ahq Summary of contents
Page 1
... TOSHIBA Bi-CMOS Linear Integrated Circuit Silicon Monolithic 51 W × 4-ch BTL Audio Power IC The TB2921AHQ 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, a high-side switch and various protection features ...
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... 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 H-SW/short 2 TB2921AHQ +B Out1 (+) 9 PW-GND1 Out1 (−) 7 Out2 (+) 5 PW-GND2 Out2 (−) 3 Out3 (+) 17 PW-GND3 Out3 (−) 19 Out4 (+) 21 ...
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... 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 TB2921AHQ kΩ 4 ∼ − Bias filter network Power Battery From microcontroller Battery ...
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... Ω 20dBm − 400 kHz −40 −60 −80 Mute On/Off −100 control −120 0.5 0 Pin 22 control voltage: V Figure 4 Mute Attenuation − V power supply, which is interlocked with a standby CC 4 TB2921AHQ ATT – V MUTE 1 1.5 2 2.5 3 (V) MUTE (V) MUTE 2009-02-03 ...
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... Figure 5 DC Offset Detection Mechanism Amp output GND Voltage at (A) (pin 25) GND Voltage at (B) (LPF output) GND V + − bias TB2921AHQ 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 ...
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... High pop noise. Duration until Low pop noise. Duration until mute function is turned on/off mute function is turned on/off is short. is long. Power supply humming and ripple filtering. Pop noise is suppressed when C1 1:4. 6 TB2921AHQ Notes Pop noise is generated when turned on. Pop noise is ...
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... V OFFSET ⎯ ⎯ dB, − Standby condition, ⎯ V22 = 0 ⎯ POWER ⎯ POWER: OFF SB 7 TB2921AHQ Min Typ. ⎯ 180 ⎯ 51 ⎯ 45 ⎯ 80 ⎯ ⎯ 0.005 25 26 −1.0 0 ⎯ 60 ⎯ ...
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... V22 = 8 V off-set Out(+)-Out(-) Rpull-down = 10 kΩ V22 = 8 V, ⎯ P25-t Voffset > ±3.5 V, (pin 25 = low) Rpull-down = 10 kΩ V22 = 8 V, ⎯ P25-f Voffset < ±2.5 V (pin 25 = high) 8 TB2921AHQ Min Typ. Max Unit ⎯ 2 ⎯ 0 0.9 ⎯ ⎯ ⎯ ...
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... It is not guaranteed that the system will work properly with these components Ripple TAB V V CC2 CC1 IN1 11 IN2 12 13 Pre-GND IN3 15 16 AC-GND IN4 14 4 Stby 22 Mute H-SW/short 9 TB2921AHQ +B Out1 (+) 9 PW-GND1 = 4 ohm Out1 (−) 7 Out2 (+) 5 PW-GND2 = 4 ohm Out2 (−) 3 Out3 (+) 17 PW-GND3 = 4 ohm Out3 (− ...
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... 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 TB2921AHQ THD – P (ch2) OUT : 400 kHz 0 100 Output power P (W) OUT THD – P (ch4) OUT : 400 kHz 0 ...
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... V 30 the channel under measurement only. 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 TB2921AHQ THD – P (ch2) OUT 13 0 100 Output power P (W) OUT THD – P (ch4) OUT 13 0.5 1 ...
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... P OUT = 5 W 1ch input 0.3 Non-filter 0.003 0.001 100 k 0.01 0.1 frequency f (Hz 13 Ω Vrip = 0.775 Vrms (0dBm) −20 − − −80 100 0.01 0.1 frequency f (Hz) 12 TB2921AHQ THD – 100 R.R. – 100 2009-02-03 ...
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... kHz 0.1 0.3 Input voltage V 120 100 Ambient temperature Ta (°C) 13 TB2921AHQ V – P (ch2) IN OUT 1 kHz 100 Hz 10 kHz 20 kHz 13 Ω Non-filter (Vrms – P (ch4) IN OUT 1 kHz 100 Hz 10 kHz 20 kHz ...
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... 620 Ω −20 −40 CT (4-2) −60 CT (3-1) CT (4-3) −80 100 kHz Ω 4ch drive 100 TB2921AHQ 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) 100 100 k frequency f (Hz) P – OUT ...
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... Package Dimensions Weight: 7.7 g (typ.) 15 TB2921AHQ 2009-02-03 ...
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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 16 TB2921AHQ 2009-02-03 ...
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... 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 TB2921AHQ 2009-02-03 ...