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參數(shù)資料
| 型號： | UTCTDA2003 |
| 廠商： | 友順科技股份有限公司 |
| 元件分類： | 音頻放大器 |
| 英文描述： | 10W CAR RADIO AUDIO AMPLIFIER |
| 中文描述： | 10W的汽車無線電音頻放大器 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 72K |
| 代理商： | UTCTDA2003 |
UTC TDA2003
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
7
QW-R107-002,A
BUILT-IN PROTECTION SYSTEMS
LOAD DUMP VOLTAGE SURGE
The UTC TDA2003 has a circuit which enables it to withstand a volt. CHARACT age pulse train, on pin 5, of the type
shown in Fig. 23.
If the supply voltage peaks to more than 40V, then an LC filter must be inserted between the supply and pin 5, in
order to assure that the pulses at pin 5 will be head within the limits shown in Fig.22.
A suggested LC network is shown in Fig.23.With this network, a train of pulses with amplitude up to 120V and width of
2ms can be applied at point A. This type of protection is ON when the supply voltage(pulsed or DC) exceeds 18V.For
this reason the maximum operating supply voltage is 18V.
t1=50ms
t2=1000ms
t
Vs
(V)
40
14.4
2mH
From
Supply
Voltage
To
Pin 5
3000
μ
F
16V
A
B
SHORT CIRCUIT (AC and DC Conditions)
The UTC TDA2003 can withstand a permanent short-circuit on the output for a supply voltage up to 16V.
POLARITY INVERSION
High current(up to 5A) can be handled by the device with no damage for a longer period than the blow-out time of a
quick 1A fuse(normally connected in series with the supply).
The feature is added to avoid destruction if, during fitting to the car, a mistake on connection of the supply is made.
OPEN GROUND
When the radio is in the ON condition and the ground is accidentally opened, a standard audio amplifier will be
damaged. On the UTC TDA2003 protection diodes are included to avoid any damage.
INDUCTIVE LOAD
A protection diode is provide between pin 4 and pin 5(see the internal schematic diagram) to allow use of the UTC
TDA2003 with inductive loads. In particular, the UTC TDA2003 can drive a coupling transformer for audio modulation.
DC VOLTAGE
The maximum operating DC voltage on the UTC TDA2003 is 18V.
However the device can withstand a DC voltage up to 28V with no damage. This could occur during winter if two
batteries were series connected to crank the engine.
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| UTCTDA2030 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:14W HI-FI AUDIO AMPLIFIER |
| UTCTDA7088 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:FM RECEIVER CIRCUIT FOR BATTERY SUPPLY |
| UTCTEA1062 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE |
| UTCTEA1062N | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE |
| UTCTEA2025 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:STEREO AUDIO AMPLIFIER |
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