TDA7572 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7572

200W mono bridge PWM amplifier with built-in step-up converter

STMicroelectronics 

TDA7572

Electrical specifications

4.3.4 Oscillator

Table 9. Oscillator

Symbol

Parameters

Test conditions

Min.

Typ.

Max. Units

Internal oscillator

PWMCLOCK=[0 1]

100K

120

140K KHz

FPWM_NOM Switching frequency

PWMCLOCK=[1 0]

PWMCLOCK=[0 0]

FPWM_NOM

*2

FPWM_NOM

/2

CLKDC Duty cycle

48

50

VCLK_High Maximum voltage level

Clock output high value

Load = 20Kohm and 100pF

to buffered SVR

VP25-0.1

52

%

VP25

V

VCLK_Low Minimum voltage level

Clock output low value

Load = 20Kohm and 100pF

to buffered SVR

VM25-0.1

VM25

V

VCLK-P-P Peak-peak voltage

Load = 20Kohm and 100pF

to SVR

-10%

4.7

+10% V

Dither cap charge current Dither pin voltage= 2.5V

-20%

100

+20% µA

Dither cap discharge

current

-20%

100

+20% µA

Peak-peak dither voltage

swing

1.4

1.6

1.7

V

Dither external clock

determination

Voltage at the dither pin at to

select external clock function

VDIG-0.2

V

No dither

Voltage at the dither pin at

which no dither will occur

Peak FPWM increase due

to dither

Cdither=100nF

Peak FPWM decrease due

to dither

Cdither=100nF

Triangular peak value

+8

-8

VGND+

1V

VDGND

+0.2

V

+10

+12

%

-10

-12

%

VDIG-

1V

21/64

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