- 您现在的位置：买卖IC网 > PDF目录98163 > TAS5342LDDVR (TEXAS INSTRUMENTS INC) 100 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 PDF资料下载
参数资料
| 型号： | TAS5342LDDVR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 100 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| 封装： | GREEN, PLASTIC, HTSSOP-44 |
| 文件页数： | 16/29页 |
| 文件大小： | 839K |
| 代理商： | TAS5342LDDVR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页当前第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页
www.ti.com
Overtemperature Protection
DEVICE RESET
Undervoltage Protection (UVP) and Power-On
SLAS558 – OCTOBER 2007
PPSC detection is enabled in BTL and PBTL output
VDD or GVDD_X pin results in all half-bridge outputs
configurations, the detection is not performed in SE
immediately being set in the high-impedance (Hi-Z)
mode. To make sure not to trip the PPSC detection
state and SD being asserted low. The device
system it is recommended not to insert resistive load
automatically resumes operation when all supply
to GND_X or PVDD_X.
voltages have increased above the UVP threshold.
The
TAS5342L
has
a
two-level
Two reset pins are provided for independent control
temperature-protection
system
that
asserts
an
of half-bridges A/B and C/D. When RESET_AB is
active-low warning signal (OTW) when the device
asserted low, all four power-stage FETs in half--
junction temperature exceeds 125
°C (nominal) and, if
bridges A and B are forced into a high-impedance
the device junction temperature exceeds 155
°C
(Hi-Z) state. Likewise, asserting RESET_CD low
(nominal), the device is put into thermal shutdown,
forces all four power-stage FETs in half-bridges C
resulting in all half-bridge outputs being set in the
and D into a high-impedance state. Thus, both reset
high-impedance (Hi-Z) state and SD being asserted
pins are well suited for hard-muting the power stage if
low. OTE is latched in this case. To clear the OTE
needed.
latch, either RESET_AB or RESET_CD must be
In BTL modes, to accommodate bootstrap charging
asserted. Thereafter, the device resumes normal
prior to switching start, asserting the reset inputs low
operation.
enables weak pulldown of the half-bridge outputs. In
the SE mode, the weak pulldowns are not enabled,
and it is therefore recommended to ensure bootstrap
Reset (POR)
capacitor charging by providing a low pulse on the
The UVP and POR circuits of the TAS5342L fully
PWM inputs when reset is asserted high.
protect
the
device
in
any
power-up/down
and
Asserting either reset input low removes any fault
brownout situation. While powering up, the POR
information to be signalled on the SD output, i.e., SD
circuit resets the overload circuit (OLP) and ensures
is forced high.
that all circuits are fully operational when the
GVDD_X and VDD supply voltages reach stated in
A rising-edge transition on either reset input allows
the
Electrical
Characteristics
Table.
Although
the device to resume operation after an overload
GVDD_X and VDD are independently monitored, a
fault. To ensure thermal reliability, the rising edge of
supply voltage drop below the UVP threshold on any
reset must occur no sooner than 4ms after the falling
edge of SD.
Copyright 2007, Texas Instruments Incorporated
23
Product Folder Link(s): TAS5342L
相关PDF资料 |
PDF描述 |
|---|---|
| TAS5342LDDV | 100 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| TAS5352ADDV | 125 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| TAS5352ADDVR | 125 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| TAS5414ATPHDMQ1 | 116 W, 4 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
| TAS5414ATPHDQ1 | 116 W, 4 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TAS5342LDDVRG4 | 功能描述:音频放大器 100W Class D Stereo Power Stage RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TAS5352 | 制造商:TI 制造商全称:Texas Instruments 功能描述:125 W STEREO DIGITAL AMPLIFIER POWER STAGE |
| TAS5352A | 制造商:TI 制造商全称:Texas Instruments 功能描述:125 W STEREO DIGITAL AMPLIFIER POWER STAGE |
| TAS5352ADDV | 功能描述:音频放大器 125W Stereo Dig Amp Pwr Stage RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TAS5352ADDVR | 功能描述:音频放大器 125W Stereo Dig Amp Pwr Stage RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。