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PDF TDA7391PD Data sheet ( Hoja de datos )
| Número de pieza | TDA7391PD | |
| Descripción | 32W BRIDGE CAR RADIO AMPLIFIER | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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® TDA7391PD
32W BRIDGE CAR RADIO AMPLIFIER
HIGH POWER CAPABILITY:
40W/3.2Ω EIAJ
32W/3.2Ω @ VS = 14.4V, f = 1KHz, d = 10%
26W/4Ω @ VS = 14.4V, f = 1KHz, d = 10%
DIFFERENTIAL INPUTS (EITHER SINGLE
ENDED OR DIFFERENTIAL INPUT SIGNAL
ARE ACCEPTED)
MINIMUM EXTERNAL COMPONENT COUNT:
- NO BOOTSTRAP CAPACITORS
- NO BOUCHEROT CELLS
- INTERNALLY FIXED GAIN (30dB)
- NO SVR CAPACITOR
ST.-BY FUNCTION (CMOS COMPATIBLE)
PROGRAMMABLE TURN-ON/OFF DELAY
NO AUDIBLE POP DURING MUTE AND ST-
BY OPERATIONS
PROTECTIONS:
SHORT CIRCUIT (TO GND, TO VS, ACROSS
THE LOAD)
VERY INDUCTIVE LOADS
CHIP OVERTEMPERATURE
LOAD DUMP
OPEN GND
ESD
PRODUCT PREVIEW
PowerSO20
ORDERING NUMBER: TDA7391PD
DESCRIPTION
The TDA7391PD is a BRIDGE class AB audio
power amplifier specially intended for car radio
High Power applications.
The high power capability together with the possi-
bility to operate either in DIFFERENTIAL INPUT
MODE or SINGLE ENDED INPUT MODE makes
it suitable for boosters and high end car radio
equipments.
The exclusive fully complementary output stage
and the internal fixed gain configuration drop the
external component count.
The on board clipping detector allows easy imple-
mentation of gain compression systems.
Figure 1: Test And Application Circuit
IN+
IN-
VS
SW1
C2 0.22µF
C1 0.22µF
ST-BY
15 5
C5 100nF
16 OUT+
2
14
19
TDA7391PD
4
17
12
9 8 1,10,11,20
OUT-
CD
C3
33µF
GND
R2
56KΩ
+VS
C4 1000µF
Vref
R1
4.7KΩ
TO µC
D98AU871
October 1998
This is preliminary information on a new product now in development. Details are subject to change without notice.
1/8
1 page  
Figure 2: Quiescent Current vs Supply Voltage
TDA7391PD
Figure 3: EIAJ power vs Supply Voltage
RL = 3.2Ω
RL = 4Ω
Figure 4: Output Power vs Supply Voltage
(@ RL = 4Ω)
RL = 4Ω
f = 1KHz
Figure 5: Distortion vs Frequency (@ RL = 4Ω)
VS = 14.4V
RL = 4Ω
PO = 12W
Figure 6: Output Power vs Supply Voltage
(@ RL = 3.2Ω)
RL = 3.2Ω
f = 1KHz
f = (Hz)
Figure 7: Distortion vs Frequency (RL =4Ω)
VS = 14.4V
RL = 3.2Ω
PO = 15W
f = (Hz)
5/8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet TDA7391PD.PDF ] | |
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