TDA7851FH-QIX
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STMicroelectronics TDA7851FH-QIX

Manufacturer No:
TDA7851FH-QIX
Manufacturer:
STMicroelectronics
Package:
Tube
Description:
IC AMP AB QUAD 75W 25FLEXIWATT
Delivery:
Payment:
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iso45001
iso9001
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Product Introduction

Overview

The TDA7851FH-QIX is a high-performance MOSFET technology class AB audio power amplifier designed by STMicroelectronics. It is specifically tailored for high-power car radio applications. The amplifier features a fully complementary P-Channel/N-Channel output structure, enabling a rail-to-rail output voltage swing. This design combines high output current with minimized saturation losses, resulting in unparalleled distortion performance in the car-radio field.

Key Specifications

Parameter Value Unit
Output Power (4 Ω max.) 4 x 48 W -
Output Power (4 Ω @ 14.4 V, 1 kHz, 10%) 4 x 28 W -
Output Power (2 Ω max.) 4 x 72 W -
Operating Supply Voltage 18 V V
Peak Supply Voltage (for t = 50 ms) 50 V V
Output Peak Current (Non repetitive, t = 100 μs) 10 A A
Output Peak Current (Repetitive, duty cycle 10% at f = 10 Hz) 9 A A
Power Dissipation (Tcase = 70 °C) 85 W W
Junction Temperature 150 °C °C
Storage Temperature -55 to 150 °C °C
Distortion (THD) at Po = 4 W 0.01 to 0.05 % %
Output Noise (A Weighted, Bw = 20 Hz to 20 kHz) 35 to 50 μV μV

Key Features

  • Multipower BCD technology
  • MOSFET output power stage
  • Excellent 2 Ω driving capability
  • Hi-Fi class distortion
  • Low output noise
  • Standby function
  • Mute function
  • Automute at minimum supply voltage detection
  • Low external component count:
    • Internally fixed gain (26 dB)
    • No external compensation
    • No bootstrap capacitors
  • Output DC offset detector
  • Protections:
    • Output short circuit to GND, to Vs, across the load
    • Very inductive loads
    • Overrating chip temperature with soft thermal limiter
    • Load dump voltage
    • Fortuitous open GND
    • Reversed battery
    • ESD

Applications

The TDA7851FH-QIX is primarily designed for high-power car radio applications. Its high output power capability, excellent distortion performance, and robust protection features make it an ideal choice for automotive audio systems.

Q & A

  1. What is the maximum output power of the TDA7851FH-QIX at 4 Ω?

    The maximum output power is 4 x 48 W at 4 Ω.

  2. What is the operating supply voltage range for the TDA7851FH-QIX?

    The operating supply voltage range is up to 18 V, with a peak supply voltage of 50 V for t = 50 ms.

  3. What type of output stage does the TDA7851FH-QIX use?

    The TDA7851FH-QIX uses a MOSFET output power stage.

  4. Does the TDA7851FH-QIX have built-in protection features?

    Yes, it includes protections such as output short circuit, overrating chip temperature, load dump voltage, fortuitous open GND, reversed battery, and ESD.

  5. What is the distortion performance of the TDA7851FH-QIX?

    The distortion (THD) is between 0.01% and 0.05% at Po = 4 W.

  6. Does the TDA7851FH-QIX have standby and mute functions?

    Yes, it includes both standby and mute functions, which are CMOS-compatible.

  7. What is the recommended value for the SVR capacitor?

    The minimum recommended value for the SVR capacitor is 10 μF.

  8. How does the TDA7851FH-QIX handle high input signals?

    The inputs are ground-compatible and can handle high input signals (±8 Vpk) without performance degradation.

  9. What is the thermal resistance junction-to-case for the TDA7851FH-QIX?

    The thermal resistance junction-to-case (Rth j-case) is 1 °C/W.

  10. What package options are available for the TDA7851FH-QIX?

    The TDA7851FH-QIX is available in FLEXIWATT 25 HB package.

Product Attributes

Type:Class AB
Output Type:4-Channel (Quad)
Max Output Power x Channels @ Load:75W x 4 @ 2Ohm
Voltage - Supply:8V ~ 18V
Features:Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type:Through Hole
Operating Temperature:150°C (TJ)
Supplier Device Package:25-Flexiwatt (Horizontal)
Package / Case:25-Flexiwatt (Formed Leads)
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In Stock

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Same Series
TDA7851FH-QIX
TDA7851FH-QIX
IC AMP AB QUAD 75W 25FLEXIWATT

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