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TDA7572 Datasheet(PDF) 24 Page - STMicroelectronics

No. de pieza TDA7572
Descripción Electrónicos  200W mono bridge PWM amplifier with built-in step-up converter
PDF  64 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7572 Datasheet(HTML) 24 Page - STMicroelectronics

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Electrical specifications
TDA7572
24/64
4.4
Voltage booster
Ext thermal shut down
-15%
VDIG *.36
+15%
V
Ext thermal shut down
hysteresis
Vdig*0.0
32
Vdig*0.
046
V
Supply Isense
Supply sense trip voltage
16
20
25
mV
AOUT levels that allow
sensing of supply current
3V
Duration of AOUT under
threshold to allow supply
current sensing
-25%
80
+25%
ms
Issenp
200
700
µA
IssenM
-500
500
nA
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
88
%
BSTDCMIN
Min duty cycle
0
%
BSTREF
Vref
-8%
2.5
+8%
V
IBIASBSTREF Vsense input bias current
-100
100
nA
VSENSE_UL
Vsense pin allowed voltage
range
-0.6
58
V
BSTVGain
Voltage-error gain
ΔDuty cycle/ΔBSTVSense
0.4
0.8
1.2
%D.C.
per mV
BSTDCNOM Nominal duty cycle
55
65
%D.C.
Csense_UL
Csense pin allowed voltage
range
-0.6
58
V
Csense gain
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
V
TSS
Soft-start step period
not yet tested (to be
confirmed)
3ms
Soft start steps
16



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