APPLICATION SUGGESTION

The high flexibility makes the L2750 suitable for a

wide range of applications.

Motor Controller

The device can be utilized as a motor controller.

Fig.1 represents a bidirectional DC motor control

suitable for logic driving. In these kinds of applica-

tion it is possible to take advantage of the high

current capability of the L2750 for driving several

types of low impedance motors in a broad range

of applications. Moreover the low drop allows high

start up currents even at lowest supply voltage.

Audio Applications

Another typical utilization of the L2750 concerns

the audio field, as follows:

1) DRIVER FOR BOOSTER : The remarkably low

distortion and noise makes the device proper to

be used as high quality driver for main amplifi-

ers (i.e. car radio boosters). An example is

shown by Fig. 5, where the gain is set to 24 dB

(see also the relevant characteristics).

2) CAR RADIO BOOSTER WITH DIFFERENTIAL

INPUT : Fig. 10 shows an example of car radio

booster, with a gain of 30 dB, that is specially

recommended for active loudspeakers. Among

its main feature is the differential input and sub-

sequent high noise suppression. The typical

output power delivered into a 4

Ω load is 24W

teristics enclosed.

ELECTRICAL CHARACTERISTICS (continued)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

SVR

Supply Voltage Rejection

f = 100Hz

75

90

dB

Crosstalk

f = 1KHz to 10KHz

80

dB

Figure 1

Figure 2: Low Drop Voltage vs. Output Current

Figure 3: High Drop Voltage vs. Output Current

Figure 4: Open Loop Gain vs. Phase Response

L2750

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