TDA7391
  • Share:

STMicroelectronics TDA7391

Manufacturer No:
TDA7391
Manufacturer:
STMicroelectronics
Package:
Tube
Description:
IC AMP AB MONO 45W 11MULTIWATT
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The TDA7391 is a bridge class AB audio power amplifier designed by STMicroelectronics, specifically intended for high-power car radio applications. This amplifier is known for its high power capability and versatility, allowing it to operate in both differential and single-ended input modes. The TDA7391 is suitable for use in boosters and high-end car radio equipment due to its fully complementary output stage and internal fixed gain configuration, which reduces the need for external components.

Key Specifications

Parameter Value Unit
DC Supply Voltage (VS) 8 - 18 V
Operating Supply Voltage (VOP) 18 V
Peak Supply Voltage (VPEAK) 50 V (t = 50 ms)
Output Peak Current (Repetitive) 4.5 A (f > 10 Hz)
Output Peak Current (Non-Repetitive) 6 A
Power Dissipation (Tcase = 85 °C) 43 W
Storage and Junction Temperature -40 to 150 °C
Operative Ambient Temperature Range -40 to 105 °C
Output Power (RL = 4 Ω, d = 10%) 26 W
Output Power (RL = 3.2 Ω, d = 10%) 32 W
Distortion (PO = 0.1 to 15 W) 0.06 %
Voltage Gain 29.5 - 30.5 dB
High Frequency Roll-off (PO = 1W, -3dB) 75 kHz
Input Impedance (Differential) 36 - 60
Input Impedance (Single Ended) 30 - 55
Input Noise Voltage 4 mV (Rg = 0 Ω, f = 22 Hz to 22 kHz)
Common Mode Rejection Ratio 65 dB (f = 1 kHz, VIN = 1 Vrms)

Key Features

  • High Power Capability: Up to 35 W/4 Ω EIAJ and 45 W/3.2 Ω max.
  • Differential Inputs: Accepts both single-ended and differential input signals.
  • Minimum External Component Count: No bootstrap capacitors, Boucherot cells, or SVR capacitors required. Internally fixed gain (30 dB).
  • Standby Function: CMOS compatible with low standby current (in the range of few μA).
  • Programmable Turn-on/Off Delay: Adjustable using external components.
  • No Audible Pop: During mute and standby operations.
  • Protections: Short circuit, very inductive loads, chip over temperature, load dump, open GND, and ESD protection.
  • Clipping Detection: On-board clipping detector for easy implementation of gain compression systems.

Applications

The TDA7391 is primarily designed for high-power car radio applications, including boosters and high-end car radio equipment. Its high power capability and robust protection features make it suitable for demanding automotive audio systems.

Q & A

  1. What is the maximum output power of the TDA7391?

    The TDA7391 can deliver up to 35 W/4 Ω EIAJ and 45 W/3.2 Ω max.

  2. What types of input signals can the TDA7391 accept?

    The TDA7391 can accept both single-ended and differential input signals.

  3. Does the TDA7391 require external bootstrap capacitors or Boucherot cells?

    No, the TDA7391 does not require external bootstrap capacitors or Boucherot cells.

  4. What is the standby current of the TDA7391?

    The standby current of the TDA7391 is in the range of a few μA.

  5. How can the turn-on/off delay be programmed in the TDA7391?

    The turn-on/off delay can be programmed using external components connected to the SYNC and MUTE pins.

  6. Does the TDA7391 have any protection features?

    Yes, the TDA7391 includes protections against short circuits, very inductive loads, chip over temperature, load dump, open GND, and ESD.

  7. What is the purpose of the clipping detection feature in the TDA7391?

    The clipping detection feature allows for the easy implementation of gain compression systems.

  8. What is the thermal resistance junction to case for the TDA7391?

    The thermal resistance junction to case for the TDA7391 is a maximum of 1.8 °C/W.

  9. What is the operative ambient temperature range for the TDA7391?

    The operative ambient temperature range for the TDA7391 is -40 to 105 °C.

  10. What is the typical voltage gain of the TDA7391?

    The typical voltage gain of the TDA7391 is 30 dB.

Product Attributes

Type:Class AB
Output Type:1-Channel (Mono)
Max Output Power x Channels @ Load:45W x 1 @ 3.2Ohm
Voltage - Supply:8V ~ 18V
Features:Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type:Through Hole
Operating Temperature:-40°C ~ 105°C (TA)
Supplier Device Package:11-Multiwatt
Package / Case:Multiwatt-11 (Vertical, Bent and Staggered Leads)
0 Remaining View Similar

In Stock

$5.57
86

Please send RFQ , we will respond immediately.

Similar Products

Part Number TDA7391 TDA7396 TDA7393 TDA7381
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Active Obsolete Obsolete Active
Type Class AB Class AB Class AB Class AB
Output Type 1-Channel (Mono) 1-Channel (Mono) 2-Channel (Stereo) 4-Channel (Quad)
Max Output Power x Channels @ Load 45W x 1 @ 3.2Ohm 65W x 1 @ 2Ohm 35W x 2 @ 4Ohm 30W x 4 @ 4Ohm
Voltage - Supply 8V ~ 18V 8V ~ 18V 8V ~ 18V 8V ~ 18V
Features Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby Mute, Short-Circuit and Thermal Protection, Standby Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type Through Hole Through Hole Through Hole Through Hole
Operating Temperature -40°C ~ 105°C (TA) -40°C ~ 150°C (TJ) -40°C ~ 85°C (TA) -
Supplier Device Package 11-Multiwatt 11-Multiwatt 15-Multiwatt 25-Flexiwatt (Vertical)
Package / Case Multiwatt-11 (Vertical, Bent and Staggered Leads) Multiwatt-11 (Vertical, Bent and Staggered Leads) Multiwatt-15 (Vertical, Bent and Staggered Leads) 25-Flexiwatt (Formed Leads)

Related Product By Categories

LM49450SQ/NOPB
LM49450SQ/NOPB
Texas Instruments
IC AMP CLASS D STER 2.5W 32WQFN
NCP2820MUTBG
NCP2820MUTBG
onsemi
IC AMP CLASS D MONO 2.65W 8UDFN
TPA2001D1PWR
TPA2001D1PWR
Texas Instruments
IC AMP CLASS D MONO 1W 16TSSOP
TAS5612LADDVR
TAS5612LADDVR
Texas Instruments
IC AMP D MONO/STER 250W 44HTSSOP
TAS5760MDCAR
TAS5760MDCAR
Texas Instruments
IC AMP D MON/STER 55.2W 48HTSSOP
TDA7561
TDA7561
STMicroelectronics
IC AMP AB QUAD 60W 25FLEXIWATT
SA58631TK,115
SA58631TK,115
NXP USA Inc.
IC AMP CLASS AB MONO 3W 8HVSON
TDA7293HS
TDA7293HS
STMicroelectronics
IC AMP AB MONO 100W 15MULTIWATT
TPA6211A1DGNG4
TPA6211A1DGNG4
Texas Instruments
IC AMP CLASS AB MONO 3.1W 8MSOP
TDF8541TH/N2,518
TDF8541TH/N2,518
NXP USA Inc.
IC AMP CLASS AB QUAD 64W 36HSOP
TDF8530TH/N1,512
TDF8530TH/N1,512
NXP USA Inc.
IC AMP CLASS D QUAD 100W 44HSOP
TDF8532HH/N2Y
TDF8532HH/N2Y
NXP USA Inc.
BAP3 DIE1

Related Product By Brand

NUCLEO-F303RE
NUCLEO-F303RE
STMicroelectronics
NUCLEO-64 STM32F303RE EVAL BRD
STPS3150UF
STPS3150UF
STMicroelectronics
DIODE SCHOTTKY 150V 3A SMBFLAT
STPS1045D
STPS1045D
STMicroelectronics
DIODE SCHOTTKY 45V 10A TO220AC
SCTWA90N65G2V
SCTWA90N65G2V
STMicroelectronics
SILICON CARBIDE POWER MOSFET 650
STP18N60M2
STP18N60M2
STMicroelectronics
MOSFET N-CH 600V 13A TO220
STGP30H60DFB
STGP30H60DFB
STMicroelectronics
TRENCH GATE FIELD-STOP IGBT, HB
STM32F215VET6
STM32F215VET6
STMicroelectronics
IC MCU 32BIT 512KB FLASH 100LQFP
STM32F103VFT7
STM32F103VFT7
STMicroelectronics
IC MCU 32BIT 768KB FLASH 100LQFP
M48Z02-70PC1
M48Z02-70PC1
STMicroelectronics
IC NVSRAM 16KBIT PAR 24PCDIP
VN5770AKP-E
VN5770AKP-E
STMicroelectronics
IC MOTOR DRIVER PAR 28SO
AST1S31HF
AST1S31HF
STMicroelectronics
IC REG BUCK ADJ 3A 8VFDFPN
L7809ABV
L7809ABV
STMicroelectronics
IC REG LINEAR 9V 1.5A TO220AB