TDA7572 datasheet(24/64 Pages) STMICROELECTRONICS

Il numero della parte	TDA7572

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

PDF	64 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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24 / 64 page

Electrical specifications

TDA7572

24/64

4.4

Voltage booster

Ext thermal shut down

-15%

VDIG *.36

+15%

Ext thermal shut down

hysteresis

Vdig*0.0

Vdig*0.

046

Supply Isense

Supply sense trip voltage

AOUT levels that allow

sensing of supply current

Duration of AOUT under

threshold to allow supply

current sensing

-25%

+25%

Issenp

200

700

µA

IssenM

-500

500

Table 12.

Diagnostics (continued)

Symbol

Parameters

Test conditions

Min.

Typ.

Max.

Units

Table 13.

Voltage booster

Symbol

Parameters

Test conditions

Min.

Typ.

Max.

Units

Current mode control topology

BSTDCMAX

Max duty cycle

BSTDCMIN

Min duty cycle

BSTREF

Vref

-8%

2.5

+8%

IBIASBSTREF Vsense input bias current

-100

100

VSENSE_UL

Vsense pin allowed voltage

range

-0.6

BSTVGain

Voltage-error gain

ΔDuty cycle/ΔBSTVSense

0.4

0.8

1.2

%D.C.

per mV

BSTDCNOM Nominal duty cycle

%D.C.

Csense_UL

Csense pin allowed voltage

range

-0.6

Csense gain

ΔDuty cycle / ΔC

sense

0.120

0.350

%D.C.

per mV

VC_SENSE at max current

VVsense = Vreference

DC=0%

CsenseTrip

Ilimit trip point

0.220

0.440

TSS

Soft-start step period

not yet tested (to be

confirmed)

3ms

Soft start steps

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