UTC2003 View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

UTC2003

10W CAR RADIO AUDIO AMPLIFIER

Unspecified 

UTC2003

LINEAR INTEGRATED CIRCUIT

Vs

t1=50ms

(V)

40

14.4

A

From

Supply

Voltage

2mH

3000µF

16V

B

To

Pin 5

t

t2=1000ms

Short Circuit (AC and DC Conditions)

The UTC2003 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 UTC2003 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

UTC2003 with inductive loads. In particular,theUTc2003 can drive a coupling transformer for audio modulation.

DC voltage

The maximum operating DC voltage on the UTC2003 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.

Thermal shut-down

The presence of a thermal limiting circuit offers the following advantages:

1).an overload on the output (even if it is permanent),or an excessive ambient temperature can be easily withstood.

2).the heat-sink can have a smaller factor compared with that of a conventional circuit. There is no device damage

in case of excessive junction temperature: all that happens is that Po( and there Ptot) and Id are reduced.

YOUWANG ELECTRONICS CO.LTD

7

Share Link: