TDA 7375A / 4558 IC Stereo Tone control Amplifier 70W (35W +35W) DIY PCB Kit Amp

Dear Sir/Madam, Good day to you ! Thanks for referring our products. We will ship the Kit with TDA7375 IC and all components as per stock availability. If you need selected IC, Please leave a note while placing your order. Both ICs with similar characteristics. This electronic learning kit is designed for youngsters , amplifier lovers, students and hobbyists to learn fundamental concepts and practice skills such as component identification, soldering, and testing. Before diving into programmable electronics such as Arduinos, this circuit is highly recommended for anybody interested in electronics. You’ll need a 12VDC, 5A battery or power supply. This package not included the power supply. The presence of an adult is required at all times. STEPS: 1. Solder the components to the PCB Board. 2. Connect the J points by wire. 3. Fix the Heat sink to TDA 7375 or STA540 IC before power supply. 3. After soldering the components to the PCB board, connect the 12V,5A DC power supply. 4. Remember to input power by DC12V power source. Circuit not include AC to DC convert rectifier section. 5. Connect the Audio input and Speakers for output. 6. Adjust the Volume by your audio input device. This circuit not contain tone controller. 7. Use an amplifier enclosure or casing for beautiful finish. 8. Please feel free to massage us for any technical support. 9. You need heat sink and power supply for this circuit. Which are not included in package. Description Operating voltage: 12V, 5A Output : 70W Stereo ( 35W + 35W) Use the 1.6MM thick double-sided Fiber Glass Board. Dual bridge application Product details of TDA7375 Audio Amplifier KIT 2CH IC 2 x 35W Stereo Audio amplifier Board MP3 Alternative for TPA3110 Output power capability: – 2 x 35W/4ohm / 2 x 25W/[email protected] Overrating Chip Temperature Protection Output AC/DC Short circuit Protection KIT Includes 1X TDA7375 IC , 2X 1uF , 1X 10uf , 1X 0.1uf , 1X 2200uf, 1X 47uf, 1X 10K resistor and PCB. Supply Voltage 12V The TDA7375 is a new technology class AB car radio amplifier able to work either in DUAL BRIDGE or QUAD SINGLE ENDED configuration. The exclusive fully complementary structure of the output stage and the internally fixed gain guarantees the highest possible power performances with extremely reduced component count. The on-board clip detector simplifies gain compression operation. The fault diagnostics makes it possible to detect mistakes during car radio set assembly and wiring in the car.. Package Content s: TDA7375A +37W Amplifier with all components and tone controllers. The Amplifier There are quite a few power amp ICs available, but ideally the amp selected will be designed to give very good performance, and a reasonable output power with the limited voltage available. We certainly don’t want to use output capacitors, so the amp has to use a BTL (bridge tied load) output stage. It doesn’t help us that many of the ICs that used to be common are no longer available, having been replaced by Class-D in many cases. Being Class-D isn’t a reason to disqualify an IC of course, but many people are wary of low cost Class-D designs. They are more complex than an equivalent Class-AB IC, and also need output inductors and caps to filter out the switching frequency. Most are also surface mount, which makes it hard for many constructors. Accordingly, the first design shown uses the TDA7375 power amplifier. This is a highly refined IC, and it has features that most competitive devices lack. Figure 1 – Circuit For The TDA7375 Power Amp The input capacitors can be either 1µF polyester or any value from 2.2µF to 10µF electrolytic (shown as ‘alternate’). My preference would be for the electrolytic, because it will be smaller and cheaper but will not compromise performance. The same applies to Figure 2, but isn’t shown. With 1µF as shown, expect the amps to have a -3dB frequency of between 7Hz and 15Hz. The IC is set up in such a way that it can be used as four independent amplifiers, or each pair of amps can be operated in bridge mode. This eliminates the need for output capacitors and allows higher power output than can be obtained with a single amplifier. The available power from a 12V battery isn’t great though – even with bridged operation. For an actual voltage of 12V (rather than 14.4V as usually quoted), the absolute maximum power from a bridged amplifier is just over 17.5 watts into a 4 ohm load. Forget the silly numbers you often see in the datasheets – they allow for up to 10% distortion and also use other strange and mysterious formulae to produce numbers that look impressive, but are completely disconnected from reality. The TDA7375 is designed so that it doesn’t require external bootstrap capacitors, nor does it need Zobel networks (aka Boucherot cells). These typically employ a 10 ohm resistor and 100nF capacitor to ensure stability with reactive loads. The IC includes extensive protection circuits, and it will shut down if it overheats, or if an output is shorted to supply or ground. It will allegedly survive reverse polarity, but that’s not something I’d rely on. The pin marked ‘DIAG’ is a diagnostics pin, and the LED will show clipping (very brief flashes) or a fault condition with steady illumination. Both LEDs should be high brightness types because the available current is limited. Power is turned on/off using the standby (ST-BY) pin. When the voltage at this pin is close to zero, the amp is claimed to draw less than 100µA, so it won’t discharge your battery. The pin marked ‘SVR’ is the half supply reference voltage, and ‘SVR’ stands for ‘ripple voltage rejection’ (in case you were wondering). Payment: We accept Paypal, VISA, American Express etc. It is fast, Easy and Safe. Payment must be completed within 7 days. PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment. Shipping: Free Shipping to Worldwide. Orders processed within 24-48 hours of payment verification. it will take 15-25 days for delivery. but Customs will random inspection some parcel, so that’s why some parcel need more than four weeks to arrive. Shipping time is only estimated and not guaranteed. We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address. Package will Shipping by E-Package with Tracking Number (7-15 Days to Delivered). Items are shipped via SriLaka Post Air Mail. Guarantee: Good Good quality. Buy with confidence! If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it. Not accept returning of electronic components. 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