TDA7473A Datasheet, PDF (3/5 Pages) STMicroelectronics – QUAD BTL DRIVER WITH VOLTAGE REGULATOR

TDA7473
ABSOLUTE MAXIMUM RATINGS
Symbol
V_SUP
V_S
T_OP
T_J
Parameter
DC Supply Voltage
Channel Power Supply
Operating Temperature Range
Maximum Junction Temperature
Value
18
6
-25 to 80
150
Unit
V
V
°C
°C
THERMAL DATA
Symbol
Parameter
Value
Unit
R_{th j-amb}
Thermal Resistance Junction to Ambient
Max.
50 (*)
°C/W
R_{th j-pins}
Thermal Resistance Junction to Pins
) (*) with 6cm² of copper heatsink on board.
Typ.
17
°C/W
ct(s ^{ELECTRICAL CHARACTERISTICS (@ VSUP = 6V, Tamb = 25°C, unless otherwise specified.)}
u _Symbol
lete ^{Product(s) VSUP}
Parameter
Supply Voltage
Maximum Power Dissipation (1)
Quiescent current (2) from V_S
Quiescent current (2) from 5V
Quiescent current (2) from V_SUP
so ^{rod Stand-by current from 5V (pin 1)}
b ^{P Stand-by current from V}SUP
- ^{O te CHANNELS BTL}
) ^{le Peak output current for channels}
t(s ^{o VSAT}
VSAT HIGH SIDE
s _{VSAT LOW SIDE}
c ^b _{Output voltage swing peak-to-}
u _{O peak}
d _{- Voltage gain for channels}
ro ⁾ _{Channels output offset voltage}
P _{t(s VST-BY Channel St-By Threshold}
lete ^{uc REGULATORS}
d _V5V
Vpin 1
so ^{ro Mindrop 5V --> REG}
b P ^IDRIV
Output current from DRIV for
pass-transistor driving
O _{teOutput current from DRIV in}
le^stand-by
o ^{DROP VSUP --> DRIV}
s Threshold voltage for overcurr.
Ob ^{protection (VSUP - OC)}
Test Condition
V(pin 4, 11, 18, 25) = 5V
V(pin 1) = 5V, R2 = ∞
V_SUP = 15V
V_SUP = 6V
V(pin 1) = 5V, R2 = ∞
V_SUP = 15V
V_SUP = 6V
I = 0.6A; VS = 5V
I = 0.6A; VS = 5V
V_S = 5V, I_out = 0.6A
Active --> St-By
St-By --> Active
Iout = 0.2A
Iout = 0.2A
I_DRIV = 20mA
V_SUP = 6V
V_SUP = 12V
VSUP = 15V
Min.
6
Typ.
1.5
20
1.8
1.3
1
1.2
0.4
0.3
Max.
15
35
2.5
2.5
2
2
0.8
0.6
Unit
V
W
mA
mA
mA
mA
mA
mA
mA
0.6
A
1.3
1.6
A
0.7
0.9
A
5.5
6
Vpp
25.5 26.5 27.5 dB
-180 -50 100 mV
0.65 V_reg 0.75 V_reg 0.85 V_reg V
0.50 Vreg
V
4.85 5.05 5.25
V
1.2
1.3
V
50
100
mA
20
50
80
mA
0.2 0.25
V
190 230 270 mV
120 160 200 mV
80
100 120 mV
VREG
Regulator Voltage
R1, R2 = 1KΩ
2.45 2.53 2.65
V
Min REG voltage (settable)
1.8
2
V
Max REG voltage (settable)
3.6
3.8
V
Output current from REG in
R1, R2 = 1KΩ
20
mA
Stand-by
(1) @ Tamb = 70°C, on board 6cm² copper heatsink
(2) INx = COMM; no loads on the regulators outputs
(3) Device is active when St-By = Low
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