TEXAS Manuals

This document is about TI's TPA721 audio power amplifier, which is a low-voltage audio power amplifier that supports 3.3-V and 5-V power supplies. The output power is 250-mW and the operating frequency is 20 kHz

The UC3849 is a secondary side average current mode controller produced by TI company. It has a 1MHz operation frequency, supports differential AC switching current sensing, accurate programmable maximum duty cycle, multiple chips can be synchronized to the fastest oscillator, wide gain bandwidth product (70MHz, Acl>10) voltage error and current sense amplifiers, and up to 10 devices can easily share a common load.

This data sheet describes the application circuit of TPA6012A4, including the circuit schematic and package. TPA6012A4 is a 3W stereo audio power amplifier with 32-step DC volume control, fade mode and 85dB mute mode. The amplifier supports BTL (speaker) and SE (headphone) volume control.

TPA0132 is a 2.8W stereo audio power amplifier with DC volume control, compatible with PC 99 desktop line-out, output power can reach 2.8W/channel, internal gain control, eliminating external gain setting resistors.

This document describes the features and characteristics of the UC1524, UC2524, and UC3524 PWM modulators. They can be used to build regulating power supplies, inverters, or switching regulators, and can also be used as control elements for high-power output applications.

This document introduces the features of UCC28083/4/5/6 and UCC38083/4/5/6, including programmable slope compensation, internal soft-start, cycle-by-cycle current limiting, low start-up current, single external component oscillator, high-current totem-pole dual output stage, current sense discharge transistor, internally trimmed bandgap reference and undervoltage lockout

The TPA6040A4 is a stereo audio power amplifier and DirectPath™ headphone amplifier in a thermally enhanced, space-saving, 32-pin QFN package. The speaker amplifier is capable of driving 2 W per channel continuously into 4-Ω loads at 5 V. The headphone amplifier achieves a minimum of 85 mW at 1% THD+N from a 5-V supply. It has a built-in 4-step volume control, minimizing the need for external components. It also features independent shutdown control and dedicated inputs for the speaker and headphone amplifiers.

The datasheet is for TPA6011A4, a 3W stereo audio power amplifier with advanced DC volume control. It supports BTL and SE modes and can drive 3W/channel of continuous RMS power from -40 dB to 20 dB into a 3-ohm load.

This document introduces the improved versions of UC3823/UC3825 PWMs. These versions have better performance than the traditional UC3823/UC3825, including: compatible with voltage-mode or current-mode control methods, practical operation at switching frequencies to 1 MHz, 50-ns propagation delay to output, high-current dual totem pole outputs (2-A peak), trimmed oscillator discharge current, low 100-µA startup current, pulse-by-pulse current limiting comparator and latched overcurrent comparator with full cycle restart.

This document introduces the features of the TL284xB and TL384xB series of high-performance current-mode PWM controllers, including low start-up current, trimmed oscillator discharge current, current mode operation up to 500 kHz, automatic feed-forward compensation, latching PWM for cycle-by-cycle current limiting, internally trimmed reference with undervoltage lockout, high-current totem-pole output undervoltage lockout with hysteresis, and double-pulse suppression.

This document describes the features and characteristics of the UCC2808A, a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC2808A is qualified for automotive applications and supports customer-specific configuration control and major-change approval. It provides ESD protection exceeding 1500 V per MIL-STD-883, Method 3015, and exceeds 200 V using the Machine Model (C = 200 pF, R = 0). The UCC2808A features dual output drive stages in a push-pull configuration, a current sense discharge transistor to improve dynamic response, a typical starting current of 130 µA, and a typical run current of 1 mA. It can operate up to 1 MHz and has internal soft start. The on-chip error amplifier has a 2-MHz gain bandwidth product, and on-chip VDD clamping is provided. The output drive stages are capable of 500-mA peak-source current and 1-A peak-sink current.

This is a low-voltage audio power amplifier that can provide 250mW of continuous power at 3.3V and supports headphone driving.

The OPA2604 is a low distortion, low noise, wide bandwidth dual FET-input operational amplifier designed for enhanced AC performance.

SN54HC04, SN74HC04 HEX INVERTERS are an integrated circuit produced by Texas Instruments. They have a wide power supply range (2V-6V), low power consumption (20μA), a typical delay time (8ns) and a high output drive current (±4mA).