- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄380759 > STA7360 (意法半導體) 20W BRIDGE/STEREO AUDIO AMPLIFIER WITH CLIPPING DETECTOR PDF資料下載
參數(shù)資料
| 型號： | STA7360 |
| 廠商： | 意法半導體 |
| 英文描述： | 20W BRIDGE/STEREO AUDIO AMPLIFIER WITH CLIPPING DETECTOR |
| 中文描述： | 20瓦橋/立體聲音頻放大器，具有裁剪探測器 |
| 文件頁數(shù)： | 13/18頁 |
| 文件大?。?/td> | 481K |
| 代理商： | STA7360 |
13/18
STA7360
Figure 29. A Classical Output Stage
Figure 30. Amplifier Block Diagram
BUILT-IN PROTECTION SYSTEMS
Short Circuit ProtectionThe maximum current the de-
vice can deliver can be calculated by considering the
voltage that may be present at the terminals of a car
radio amplifier and the minimum load impedance.
Apart from consideration concerning the area of the
power transistors it is not difficult to achieve peak cur-
rents of this magnitude (5A peak).However, it be-
comes more complicated if AC and DC short circuit
protection is also required.In particular, with a protec-
tion circuit which limits the output current following
the SOA curve of the output transistors it is possible
that in some conditions (highly reactive loads, for ex-
ample) the protection circuit may intervene during
normal operation. For this reason each amplifier has
been equipped with a protection circuit that inter-
venes when the output current exceeds 4A
Fig 16 shows the protection circuit for an NPN power
transistor (a symmetrical circuit applies to PNP). The
VBE of the power is monitored and gives out a sig-
nal,available through a cascode.
This cascode is used to avoid the intervention of the
short circuit protection when the saturation is below a
given limit.
The signal sets a flip-flop which forces the amplifier
outputs into a high impedance state.
In case of DC short circuit when the short circuit is re-
36). In case of AC short circuit or load shorted in
Bridge configuration, the device is continuously
switched in ON/OFF conditions and the current is lim-
ited.
Figure 31. Circuitry for Short Circuit Detection
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| STAN250A | RF & MICROWAVE TRANSISTORS AVIONICS APPLICATIONS |
| START405 | NPN Silicon RF Transistor |
| START405TR | NPN Silicon RF Transistor |
| START420 | NPN Silicon RF Transistor |
| START420TR | NPN Silicon RF Transistor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STA7360_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:20 W bridge/stereo audio amplifier with clipping detector |
| STA801 | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:2-Output Separate Excitation Switching Type |
| STA801M | 制造商:Sanken Electric Co Ltd 功能描述:IC REG BUCK 0.5A DUAL 10SIP |
| STA802M | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:2-Output Separate Excitation Switching Type |
| STA8058 | 功能描述:射頻微控制器 - MCU GPS multi-chip Module RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:Si100x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:24 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:4 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LGA-42 安裝風格:SMD/SMT 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復。