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TDA7480
10W MONO CLASS D AMPLIFIER
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TDA7480
10W MONO CLASS-D AMPLIFIER
a 10W OUTPUT POWER:
RL = 89/49; THD = 10%
HIGH EFFICIENCY
NO HEATSINK
SPLIT SUPPLY
OVERVOLTAGE PROTECTION
ST-BY AND MUTE FEATURES
SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
DESCRIPTION
The TDA7480 is an audio class-D amplifier as-
sembled in Power DIP package specially de-
signed for high efficiency applications mainly for
TV and Home Stereo sets.
Figure 1: Test and Application Circuit.
PDIP20 (14+3+3)
ORDERING NUMBER: TDA7480
C5 100nF
(Pin 17)
NC. Vcc POW
100nF T
Vcc SIGN
T zzgguF
212 7,13 16
2.2 _ MUTE
C2 0.33pF
C4 4.7nF
FEEDCAP
SGN-GND
D96AU536E
"l. C11
100nF L1 GOpH
C9 J. J..
100nF: f 2200WF
September 1998
TDA7480
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Vcc DC Supply Voltage Elo V
Tsta, Tj Storage and Junction Temperature -40 to 150 "C
VFREQ Maximum Voltage Across VFREQ (Pin 9) 8 V
Top Operating Temperature Range -20 to 70 ''C
ESD Maximum ESD on Pins $1.8 kV
PIN CONNECTION (Top view)
Rth with "on boar " Square Heatsink vs. cop-
per area.
(53% D97AU675
- V - COPPER AREA 3511
Vcc E 1 20 Cl Vcc THICKNESS
-Vcc E 2 19 Cl A/cc
"V00 E 3 18 Cl A/cc 60 a E
OUT E 4 17 Cl A/cc LI
BOOTDIODE E 5 16 Cl +Vcceow
PC BOARD
BOOT E 6 15 Cl VREG 50
NC. E 7 14 Cl +VCCSIGN
FEEDCAP E 8 13 Cl N.C.
FREQ E 9 12 Cl STBY/MUTE 40
SGN-GND E 10 11 Cl IN
D96AU537B 30
O 8 12 Area(cm2)
THERMAL DATA
Symbol Parameter Value Unit
Rthj_amb Thermal Resistance Junction to ambient 80 °CNV
Re, j-pin Thermal Resistance Junction to Pin 12 ''C/W
PIN FUNCTIONS
N. Name Function
1 -Vcc NEGATIVE SUPPLY.
2 -Vcc NEGATIVE SUPPLY.
3 -Vcc NEGATIVE SUPPLY.
4 OUT PWM OUTPUT
5 BOOTDIODE BOOTSTRAP DIODE ANODE
6 BOOT BOOTSTRAP CAPACITOR
7 NC NOT CONNECTED
8 FEEDCAP FEEDBACK INTEGRATING CAPACITANCE
9 FREQUENCY SETTING FREQUENCY RESISTOR
10 SGN-GND SIGNAL GROUND
11 IN INPUT
12 ST-BY-MUTE ST-BY/ MUTE CONTROL PIN
13 NC NOT CONNECTED
14 +Vcc SIGN POSITIVE SIGNAL SUPPLY
15 VREG 10V INTERNAL REGULATOR
16 +Vcc POW POSITIVE POWER SUPPLY
17 -VCC NEGATIVE SUPPLY (TO BE CONNECTED TO PIN 16 VIA C5)
18 A/cc NEGATIVE SUPPLY
19 -Vcc NEGATIVE SUPPLY
20 -Vcc NEGATIVE SUPPLY
2/10 cr,
