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參數(shù)資料
| 型號： | TAS5186ADDV |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 60 W, 6 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| 封裝： | GREEN, PLASTIC, HTSSOP-44 |
| 文件頁數(shù)： | 5/20頁 |
| 文件大小： | 609K |
| 代理商： | TAS5186ADDV |
www.ti.com
Overtemperature Protection
UNDERVOLTAGE PROTECTION (UVP) AND
DEVICE RESET
ACTIVE-BIAS CONTROL (ABC)
TAS5186A
SLES156 – OCTOBER 2005
element in the audio path, i.e., split-cap capacitors or
series capacitor, to the desired potential before
The
TAS5186A
has
a
two-level
switching is started on the PWM outputs. (For
temperature-protection
system
that
asserts
an
recommended
configuration,
see
the
typical
active-low warning signal (OTW) when the device
application schematic included in this data sheet).
junction temperature exceeds 125°C (typical), and If
the device junction temperature exceeds 155°C
The start-up sequence can be controlled through
(typical), the device is put into thermal shutdown,
sequencing the M3 and RESET pins according to
resulting in all half-bridge outputs being set in the
high-impedance state (Hi-Z) and SD being asserted
low.
Table 2. 5.1 Mode—All Output Channels Active
M3
RESET
OUT_BIAS
OUT_A, OUT_D,
COMMENT
_B, _C
_E, _F
POWER-ON RESET (POR)
0
Hi-Z
All outputs
disabled,
The UVP and POR circuits of the TAS5186A fully
nothing is
protect
the
device
in
any
power-up/down
and
switching.
brownout situation. While powering up, the POR
1
0
Active
Hi-Z
OUT_BIAS
circuit resets the overload circuit (OLP) and ensures
enabled, all
that all circuits are fully operational when the
other outputs
disabled
GVDD_X and VDD supply voltages reach 10 V
(typical).
Although
GVDD_X
and
VDD
are
1
Hi-Z
Active
OUT_BIAS
disabled, all
independently monitored, a supply voltage drop
other outputs
below the UVP threshold on any VDD or GVDD_X
switching
pin results in all half-bridge outputs immediately being
set in the high-impedance (Hi-Z) state and SD being
Table 3. 2.1 Mode—Only Output Channels A, B,
asserted low. The device automatically resumes
and C Active
operation when all supply voltages have increased
above the UVP threshold.
M3
RESET
OUT_BIAS
OUT_A, OUT_D,
COMMENT
_B, _C
_E, _F
0
Hi-Z
All outputs
disabled,
When RESET is asserted low, the output FETs in all
nothing is
half-bridges are forced into a high-impedance (Hi-Z)
switching.
state.
1
0
Active
Hi-Z
OUT_BIAS
enabled, all
Asserting the RESET input low removes any fault
other outputs
information to be signaled on the SD output, i.e., SD
disabled
is forced high.
0
1
Hi-Z
Active
Hi-Z
OUT_BIAS
disabled, all
A rising-edge transition on the RESET input allows
other outputs
the device to resume operation after an overload
switching
fault.
When the TAS5186A is used with the TAS5086 PWM
modulator, no special attention to start-up sequencing
is required, provided that the chipset is configured as
Audible
pop
noises
are
often
associated
with
recommended.
single-rail, single-ended power stages at power-up or
at the start of switching. This commonly known
problem
has
been
virtually
eliminated
by
incorporating a proprietary active-bias control circuitry
as part of the TAS5186A feature set. By the use of
only a few passive external components (typically
resistors), the ABC can pre-charge the dc-blocking
13
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TAS5186ADDV | 制造商:Texas Instruments 功能描述:Audio Power Amplifier IC |
| TAS5186ADDVG4 | 功能描述:音頻放大器 6-Ch 210-W Digital PowerStage RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5186ADDVR | 功能描述:音頻放大器 6-Ch 210-W Digital PowerStage RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5186ADDVRG4 | 功能描述:音頻放大器 6-Ch 210-W Digital PowerStage RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5186DDV | 功能描述:音頻放大器 6 CHANNEL POWERSTAGE RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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