3 W BTL audio amplifier

General description:

The SA58631 is a one channel audio amplifier in an HVSON8 package. It provides power output of 3 W with an 8 Ω load at 9 V supply. The internal circuit is comprised of a BTL (Bridge Tied Load) amplifier with a complementary PNP-NPN output stage and standby/mute logic. The SA58631 is housed in an 8-pin HVSON package which has an exposed die attach paddle enabling reduced thermal resistance and increased power dissipation.

Circuit Diagram:

3 W BTL audio amplifier

PCB layout:

Pcb layout 3 W BTL audio amplifier

Audio Circuit Diagram 4x50W TDA8594

General description:

The TDA8594 is a complementary quad Bridge Tied Load (BTL) audio power amplifier made in BCDMOS technology. It contains four independent amplifiers in BTL configuration. Through the I2C-bus, diagnosis of temperature warning and clipping level is fully programmable and the information available via two diagnostic pins is selectable. The status of each amplifier (output offset, load or no load, short-circuit or speaker incorrectly connected) can be read separately.

Features and benefits:

• Operates in legacy mode (non I2C-bus) and I2C-bus mode (3.3 V and 5 V compliant)
• Three hardware-programmable I2C-bus addresses
• Drives 4  or 2  loads
• Speaker fault detection
• Independent short-circuit protection per channel
• Loss of ground and open VP safe (with 200 m series impedance and a supply  decoupling capacitor of 2200 F maximum)
• All outputs short-circuit proof to ground, supply voltage and across the load
• All pins short-circuit proof to ground
• Temperature-controlled gain reduction to prevent audio holes at high junction  temperatures
• Low battery voltage detection
• Offset detection
• This part has been qualified in accordance with AEC-Q100

Circuit Diagram:

Audio Circuit Diagram 4x50W TDA8594

4 x 45W Audio Power Amplifier

General description:

The TDA8595 is a complementary quad Bridge Tied Load (BTL) audio power amplifier made in BCDMOS technology. It contains four independent amplifiers in BTL configuration. Through the I2C-bus, diagnosis of temperature warning and clipping level is fully programmable and the information available via two diagnostic pins is selectable. The status of each amplifier (output offset, load or no load, short-circuit or speaker incorrectly connected) can be read separately.

Features and benefits:

• Operates in legacy mode (non I2C-bus) and I2C-bus mode (3.3 V and 5 V compliant)
• Three hardware-programmable I2C-bus addresses
• Drive 4  or 2  loads
• Speaker fault detection
• Independent short-circuit protection per channel
• Loss of ground and open VP safe (with 150 m series impedance and a supply  decoupling capacitor of 2200 F maximum)
• All outputs short-circuit proof to ground, supply voltage and across the load
• All pins short-circuit proof to ground
• Temperature-controlled gain reduction to prevent audio holes at high junction temperatures
• Low battery voltage detection
• Offset detection
• This part has been qualified in accordance with AEC-Q100

Circuit Diagram:

Circuit Diagram for 4 x 45W Audio Power Amplifier

Datasheet for TDA8595: Download

High-Frequency General-Purpose Amplifier Applications 2SK1066

Applications:

 · High-frequency general-purpose amplifier.

 · AM tuner RF amplifier.

 · Low-noise amplifier.

Features:

 · Large yfs.

 · Small Crss.

 · Ultralow noise figure.

 · Ultrasmall-sized package permitting 2SK1066-

applied sets to be made smaller and slimmer.

Datasheet: Download

 2SK1066

4x12W car radio power amplifier

FEATURES:

Requires very few external components

High output power

Fixed gain

Diagnostic facility (distortion, short-circuit and temperature detection)

Good ripple rejection

Mode select switch (operating, mute and stand-by)

Load dump protection

AC and DC short-circuit safe to ground and to VP

Low power dissipation in any short-circuit condition

Thermally protected

Reverse polarity safe

Electrostatic discharge protection

No switch-on/switch-off plop

Flexible leads

Low thermal resistance

Identical inputs.

GENERAL DESCRIPTION:

The TDA8562Q is an integrated class-B output amplifier in a 17-lead single-in-line (SIL) power package. It contains 4 × 12 W single-ended amplifiers.

Circuit Diagram:

4x12W car radio power amplifier

2 x 210 W audio power amplifier Class-D

General description:

The TDA8954 is a stereo or mono high-efficiency Class D audio power amplifier in a  single IC featuring low power dissipation. It is designed to deliver up to 2 × 210 W into a 4 Ω load in a stereo Single-Ended (SE) application, or 1 × 420 W into an 8 Ω load in a mono Bridge-Tied Load (BTL) application. It combines the benefits of Class D efficiency (≈93 % into a 4 Ω load) with audiophile sound quality comparable to that associated with Class AB amplification. The amplifier operates over a wide supply voltage range from ±12.5 V to ±42.5 V and  features low quiescent current consumption. The TDA8954 is supplied with two diagnostic pins for monitoring the status of Thermal  Fold Back (TFB), Over Current Protection (OCP) and other protection circuits.

Features:

• „ High output power in typical applications:
• ‹ SE 2 × 210 W, RL = 4 Ω (VDD = 41 V; VSS = −41 V)
• ‹ SE 2 × 235 W, RL = 3 Ω (VDD = 39 V; VSS = −39 V)
• ‹ SE 2 × 150 W, RL = 6 Ω (VDD = 41 V; VSS = −41 V)
• ‹ BTL 1 × 420 W, RL = 8 Ω (VDD = 41 V; VSS = −41 V)
• „ Symmetrical operating supply voltage range from ±12.5 V to ±42.5 V
• „ Stereo full differential inputs, can be used as stereo SE or mono BTL amplifier
• „ Low noise
• „ Smooth pop noise-free start-up and switch off
• „ 2-pin diagnostics for protection circuits
• „ Fixed frequency internal or external clock
• „ High efficiency ≈93 %
• „ Zero dead time switching
• „ Low quiescent current
• „ Advanced protection strategy: voltage protection and output current limiting
• „ Thermal FoldBack (TFB) with disable functionality
• „ Fixed gain of 30 dB in SE and 36 dB in BTL applications
• „ Fully short-circuit proof across load
• „ BD modulation in BTL configuration
• „ Clock protection

Circuit Diagram:

Circuit Diagram 2 x 210 W audio power amplifier Class-D

Datasheet for TDA8954: Download

4x45W Stereo Power Amplifier Circuit Diagram TDA8596

General description:

The TDA8596 is a quad Bridge Tied Load (BTL) audio power amplifier with symmetrical inputs, made in BCDMOS technology. It contains four independent amplifier channels in BTL configuration with complementary (PMOST/NMOST) output stages. Temperature warning and output signal clipping diagnosis is possible via the I2C-bus and via the diagnostic pins (DIAG and STB pin). The temperature pre-warning level and clip detection levels can be programmed via the I2C-bus. The status of each amplifier channel (i.e. output offset, load connected or not, short circuit condition at the output pins) can be read out separately.

Features

• Operates in legacy mode (non I2C-bus) and I2C-bus mode (3.3 V and 5 V compliant)
• Three hardware-programmable I2C-bus addresses
• Drives 4 Ω or 2 Ω loads
• Balanced/symmetrical inputs
• Speaker fault detection
• Programmable gain (26 dB and 16 dB) also available in legacy mode
• Independent short circuit protection per channel
• Loss of ground and loss of VP safe (with 300 mΩ series impedance and a maximum supply decoupling capacitor of 2200 µF)
• All outputs are short-circuit proof to ground, supply voltage and across the load
• All pins are short circuit proof to ground
• Temperature-controlled gain reduction to prevent audio holes at high junction temperatures
• Low battery voltage detection
• Qualified in accordance with AEC-Q100

Circuit Diagram:

4x45W Stereo Power Amplifier Circuit Diagram TDA8596

Datasheet for TDA8596: Download