UTC2003 Просмотр технического описания (PDF) - Unspecified
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UTC2003 Datasheet PDF : 8 Pages
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UTC2003
2.2µF
1
5
UTC2003
4
2
3
C3
15µF
LINEAR INTEGRATED CIRCUIT
1Ω 0.1µF
RL=4Ω
200Ω 430Ω
Vs=14.4V
2.2µF
5
1
4
UTC2003
2
3
16Ω
16Ω
C4
10µF
Fig.18 20W Bridge configuration application
The Values of the capacitors C3 and C4 are different to optimize the SVR(Typ. 40dB)
Vs=14.4V
0.1µF
1
5
UTC2003
4
2
3
RL=4Ω
0.1µF
5
1
4
UTC2003
2
3
C3
15µF
620Ω
1nF
Fig.20 Low cost bridge configuration application circuit(Po=18W)
BUILT-IN PROTECTION SYSTEMS
Load dump voltage surge
The UTC2003 has a circuit which enables it to withstand a voltage 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.
YOUWANG ELECTRONICS CO.LTD
6
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