參數(shù)資料
型號： STA530
廠商： 意法半導體
元件分類： 音頻放大器
英文描述： 4 X 50W STEREO BASH POWER AMPLIFIER
中文描述： 4 × 50瓦立體聲BASH功放
文件頁數(shù)： 13/17頁
文件大?。?/td> 278K
代理商： STA530
13/17
STA530
For example in the STA530 the Rth jc is 1°C/W. R case-to-heatsink with grease is about 0.5 °C/W. The maxi-
mum operating junction temperature is 130 °C, which for margin should be derated to 120 °C.
Buck Regulator Heatsink
The Buck regulator heatsink can be designed in a similar manner and does not change by varying power supply.
In general the efficiency will be in the order of 85%. The thermal impedances from the junction(s) to the heatsink
may be lower and the maximum operating temperature will be higher. Usually either the sub or the remaining
channels are tested at full power. The result is that usually the Buck heatsink is about the size of the linear
heatsink, but this can be strongly affected by the design.
Figure 8. PCBs AND COMPONENTS LAYOUT
SAM261 Specification
Parameter
Rating
Notes
Output Power
Sats @ 8
- 55 Watts @ 10%
Sub @ 4
- 100 Watts @ 10%
< 0.05% @ 40 Watts
< 0.05% @ 75 Watts
-102 dB (relative to full power)
-110 dB (A-weighted)
1 VRMS
-87dB (relative to10W)
See Graphs
THD + N
Measured @ 1KHZ
SNR
Channel 5 terminated
Sensitivity
Crosstalk
Amplifier
Channel 5 @ 10W 1KHz 8
,
Channel 3 input terminated
Maximum Voltage is 50Vdc
Minimum Voltage is 40Vdc
Main Power Supply Inputs
50Volts @ 2 Amps
Aux Power Supply Inputs
+ 24 Volts @ 100mA
-24 Volts @ 100mA
R
th
T
----------------------------------
T
–
d
R
th j case
–
R
th case to heatsink
–
–
=
4 Supply Connections
4 Pins Harness
Power Supply Connections
9 Pins Harness
Audio Connections
Main DC
Input
VS DC
Input
Mute
Audio
Inputs
Preamplifier PCB
Amplifier PCB
相關PDF資料
PDF描述
STA538 Zener Diode; Application: General; Pd (mW): 400; Vz (V): 24.97 to 26.26; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V): &#160; ESD (kV) min: -; Package: MHD
STA538B Zener Diode; Application: General; Pd (mW): 400; Vz (V): 25.63 to 26.95; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V): &#160; ESD (kV) min: -; Package: MHD
STA538Q Zener Diode; Application: General; Pd (mW): 400; Vz (V): 26.29 to 27.64; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V): &#160; ESD (kV) min: -; Package: MHD
STA575 DISCONNECT SWITCH+HANDLE 600VAC 30A IEC
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