TDA7476 Datasheet, PDF (2/15 Pages) STMicroelectronics – CAR RADIO DIAGNOSTIC PROCESSOR

TDA7476
BLOCK DIAGRAM
V_S
R3
10KΩ
ST-BY
SW1
C3
10µF
W
R4
10KΩ
5V
REF
C1
10∝F
SDA
SCL
ADD
C2
100nF
2
3
I²C
4
12
5
DELAY
INTERFACE
11
10
VOLTAGE REGULATOR
14
&
13 ^{TEST SIGNAL GENERATOR}
C_T
R_CS
R5 51Ω
DIG-GND
1
24
23
CH5
22
21
CH4
20
19
CH3
18
17
CURRENT
FORCING
&
16
COMPARATORS 15
6
CH2
CH1
RSENS1
7
8
RSENS2
9
D96AU499A
OUT
AUX1
IN
IN
AUX2
OUT
ABSOLUTE MAXIMUM RATINGS
Symbol
V_op
V_s
V_peak
P_tot
T_stg; T_j
V_SB
V_SDA
V_SCL
V_ADD
Parameter
Operating Supply Voltage
DC Supply Voltage
Peak Supply Voltage t = 50ms
Total Power Dissipation Tcase = 25°C
Storage and Junction Temperature
Stand-by Pin Voltage
SDA Pin Voltage
SCL Pin Voltage
ADD Pin Voltage
Value
18
28
40
1.5
-40 to 150
6
6
6
6
Unit
V
V
V
W
°C
V
V
V
V
THERMAL DATA
Symbol
R_{Th j-amb}
Parameter
Thermal resistance junction to ambient
Max.
Value
85
Unit
°C/W
ELECTRICAL CHARACTERISTICS (V_s = 14.4V; T_amb = 25°; R_L = 4Ω, unless otherwise specified.)
Symbol
V_SBIN
V_SBOUT
I_SB
Iq
Parameter
Stand-By IN Threshold
Stand-By OUT Threshold
Stand-By Current Consumption
Total Quiescent Current
Test Condition
Stand-By Voltage Pin = 1.5V
Total quiescent Current with
TDA7476 not addressed
Min.
3.5
Typ.
5
Max.
1.5
100
Unit
V
V
µA
mA
2/15