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參數(shù)資料
| 型號： | TDA8943SF |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 6 W mono Bridge Tied Load (BTL) audio amplifier(6 W單聲道BTL音頻放大器) |
| 中文描述： | 6 W, 1 CHANNEL, AUDIO AMPLIFIER, PSFM9 |
| 封裝： | PLASTIC, SIP-9 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 358K |
| 代理商： | TDA8943SF |
Philips Semiconductors
TDA8943SF
6 W mono Bridge Tied Load (BTL) audio amplifier
Product specification
Rev. 02 — 7 April 2000
6 of 20
9397 750 06865
Philips Electronics N.V. 2000. All rights reserved.
8.4 Supply Voltage Ripple Rejection (SVRR)
The SVRR is measured with an electrolytic capacitor of 10
μ
F on pin SVR at a
bandwidth of 10 Hz to 80 kHz.
Figure 12 on page 10
illustrates the SVRR as function
of the frequency. A larger capacitor value on the SVR pin improves the ripple rejection
behaviour at the lower frequencies.
8.5 Built-in protection circuits
The TDA8943SF contains two types of protection circuits, i.e. short-circuit and
thermal shutdown.
8.5.1
Short-circuit protection
Short-circuit to ground or supply line —
This is detected by a so-called ‘missing
current’ detection circuit which measures the current in the positive supply line and
the current in the ground line. A difference between both currents larger than 0.4 A,
switches the power stage to standby mode (high impedance).
Short-circuit across the load —
This is detected by an absolute-current
measurement. An absolute-current larger than 2 A, switches the power stage to
standby mode (high impedance).
8.5.2
Thermal shutdown protection
The junction temperature is measured by a temperature sensor; at a junction
temperature of approximately 150
°
C this detection circuit switches the power stage
to standby mode (high impedance).
9.
Limiting values
Table 5:
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
V
CC
supply voltage
Limiting values
Conditions
no signal
operating
Min
0.3
0.3
0.3
-
55
40
Max
+25
+18
V
CC
+ 0.3 V
2
+150
+85
Unit
V
V
V
I
I
ORM
T
stg
T
amb
input voltage
repetitive peak output current
storage temperature
operating ambient
temperature
total power dissipation
supply voltage to guarantee
short-circuit protection
A
°
C
°
C
non-operating
P
tot
V
CC(sc)
-
-
7
18
W
V
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相關代理商/技術參數(shù) |
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| TDA8943SF/N1,112 | 功能描述:音頻放大器 6W MONO BTL PWR AMP RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA8943SF/N1.112 | 制造商:NXP Semiconductors 功能描述:AMP AUDIO POWER SINGLE 8943 SIL-9 |
| TDA8944 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 x 7 W stereo Bridge Tied Load BTL audio amplifier |
| TDA8944AJ | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 x 7 W BTL audio amplifier with DC gain control |
| TDA8944AJ/N2,112 | 功能描述:音頻放大器 2X6W AUDIO AMP. + VOL. CONTROL RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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