Description

Highlights:

The module is an audio power amplifier with high voltage and high current. It can output 8A current continuously with a peak value of 10A. It can ideally drive various loads, such as motor drive, horn drive, transformer drive and audio amplifier. It can also amplify triangular, sinusoidal and square wave signals.

OPA549 module shipping list

Physical module + PDF schematic diagram + after-sale technical support + electrostatic bag packaging + shockproof foam

Tips:

(1) The module interface of our shop is clear and the performance is stable. Please perform functional verification under the corresponding experimental conditions in conjunction with the schematic diagram provided by our shop.

(2) The basic parameters of this module are in the details page, providing PDF information of the module information; engineering documents are not provided, please be clear to the buyer, if there are operational problems, please consult customer service.

(3) Buyers, before using the module, please read the details page of this module to understand the power supply and use restrictions, to avoid damage to the module due to improper operation.

(4) The modules of our shop are guaranteed to provide real module parameters, functions and pictures. All modules are checked and tested before delivery.

Please contact customer service after purchase, we will send the information to your mailbox

Module parameters

Module model: OPA549

Module type: low frequency power amplifier

Input signal form: single-ended

Input voltage range: 2Vpp (MAX); generally within the power supply range

Module input impedance: 10K ohm

Module supply voltage: ± 4V ～ ± 30V

Module supply current: ± 8A; large output current requires large supply current

Module output impedance: low impedance

Output voltage range: 54Vpp (MAX); in the case of positive and negative 30V power supply

Output current: 8A (MAX); the module has set 6A current limit

Output power: 100W (MAX)

Module gain: 33 times; the default gain is 33 times, the first level is 11 times, the second level is 3 times, G1 = R1 / R2 + 1, G2 = R11 / R10 + 1

Input offset voltage: 1mV (MAX)

Input offset drift: 2uV / ℃ (MAX)

Input bias current: 125nA (MAX)

Input voltage noise: 35nV√Hz (1KHz)

Module weight: 150g

Module protection: none; no reverse connection protection, unlimited current protection

Module weight: 150g

Module specifications: 86 * 81 * 52mm length * width * height-PCB size

Module heating: with heat sink; forced air cooling is required at high current

Module heating factors: the input and output voltage is too large or the module is damaged

Module working temperature: -40 ℃-+ 75 ℃ industrial grade

Module features: positive and negative power LED indication

Application range: small signal amplification, audio signal amplifier, motor drive, servo amplifier, etc.

Module interface type: SMA signal signal input and output, 5.08 blue power card wire holder

OPA548

The OPA548 device is a low-cost, high-voltage and high-current operational amplifier that's ideal for driving a wide variety of loads. A laser-trimmed monolithic integrated circuit provides excellent low-level signal accuracy and high-output voltage and current.

The OPA548 device operates from either single or dual supplies for design flexibility. In single-supply operation, the input common-mode range extends below ground.

The OPA548 device is internally protected against over-temperature conditions and current overloads. In addition, the OPA548 device was designed to provide an accurate, user-selected current limit. Unlike other designs, which use a power resistor in series with the output current path, the OPA548 device senses the load indirectly. This allows the current limit to be adjusted from 0 A to 5 A with a resistor and potentiometer or controlled digitally with a voltage-out or current-out DAC.

Name: OPA548 Power Operational Amplifier

Dimensions: 96mm * 64mm * 42mm

Supply Voltage Range: ±10V~±30V

Highlights:

High voltage; High current; Wide output voltage amplitude

Continuous 3A output current

Maximum peak 5A

Can drive various loads like motor / speaker / transformer / audio amplifier

Can amplify triangular / sine / square wave signal

Package include

1× Module

For the matching cables and connectors, please Click: LINK

Notice:

If you don't need pre-amplification and want to use TDA2030 to amplify and output, you can use first-level output as signal input and second-level output as output.

Chip Features:

Wide Supply Range:

– Single Supply: 8 V to 60 V

– Dual Supply: ±4 V to ±30 V High-Output Current:

– 3-A Continuous

– 5-A Peak

Wide Output Voltage Swing

Fully Protected:

– Thermal Shutdown

– Adjustable Current Limit

Output Disable Control

Thermal Shutdown Indicato

High Slew Rate: 10 V

Low Quiescent Current

Applications

Valve, Actuator Drivers

for SYNCHRO, SERVO Drivers

Power Supplies

Test Equipment

Transducer Excitation

OPA544

Highlights:

The module is a power amplifier module with a peak voltage of 68Vpp. When the load current is greater than 2A, the input signal needs to be greater than 500 mVpp. It is suitable for driving high voltage and high current operational amplifiers of various high power loads, such as motor drive, horn drive, transformer drive, etc. It can also amplify triangular, sinusoidal and square wave signals.

OPA544 module shipping list

Physical module + PDF schematic diagram + after-sale technical support + electrostatic bag packaging + shockproof foam

Tips:

(1) The module interface of our shop is clear and the performance is stable. Please perform functional verification under the corresponding experimental conditions in conjunction with the schematic diagram provided by our shop.

(2) The basic parameters of this module are in the details page, providing PDF information of the module information; engineering documents are not provided, please be clear to the buyer, if there are operational problems, please consult customer service.

(3) Buyers, before using the module, please read the details page of this module to understand the power supply and use restrictions, to avoid damage to the module due to improper operation.

(4) Our modules are guaranteed to provide real module parameters, functions and pictures, and all modules will be shipped after detection.

Please contact customer service after purchase, we will send the information to your mailbox

Module parameters

Module model: OPA544

Module type: low frequency power amplifier

Input signal form: single-ended

Input voltage range: 2Vpp (MAX); generally within the power supply range

Module input impedance: 10K ohm

Module supply voltage: ± 10V ～ ± 35V

Module supply current: ± 4A; large output current requires large supply current

Module output impedance: low impedance

Output voltage range: 60Vpp (MAX); in the case of positive and negative 35V power supply

Output current: 4A (MAX)

Output power: 30W (MAX)

Module gain: 44 times; the default gain is 44 times, the first level is 11 times, the second level is 4 times, G1 = R1 / R2 + 1, G2 = R10 / R12 + 1

Input offset voltage: 1mV (MAX)

Input offset drift: 2uV / ℃ (MAX)

Input bias current: 125nA (MAX)

Input voltage noise: 35nV√Hz (1KHz)

Module weight: 125g

Module protection: none; no reverse connection protection, unlimited current protection

Module weight: 125g

Module specifications: 100 * 64 * 42mm; length * width * height-PCB size

The module becomes hot: there are heat sinks; forced air cooling is required at high current

Module heating factors: the input and output voltage is too large or the module is damaged

Module working temperature: -40 ℃-+ 75 ℃; industrial grade

Module features: positive and negative power LED indication

Application range: small signal amplification, audio signal amplifier, motor drive, servo amplifier, etc.

Module interface type: SMA signal signal input and output, 5.08 blue power card wire holder

Module description

OPA544 is high voltage / high current operation, suitable for driving high power loads of various amplifiers. The high-performance FET operational amplifier circuit and high-power output stage are combined in a single microcontroller.

OPA544 is protected by internal current limit and thermal shutdown circuit. OPA544 has industry standards and can be easily installed on the heating device; the heat sink has excellent heat dissipation performance. Suitable for motor drive, speaker drive, transformer drive and audio amplifier. It can also amplify triangle wave, sine wave and square wave signals.

OPA541

Parameters:

Module model: OPA541

Module type: low frequency power amplifier

Input signal form: single-ended

Input voltage range: 2Vpp (MAX); generally within the power supply range

Module input impedance: 1K ohm

Module supply voltage: ± 10V ～ ± 40V

Module supply current: ± 5A; large output current requires large supply current

Module output impedance: low impedance

Output voltage range: 68Vpp (MAX); in the case of positive and negative 40V power supply

Output current: 5A (MAX)

Output power: 50W (MAX)

Module gain: 33 times; the default gain is 33 times, the first level is 11 times, the second level is 3 times, G1 = R1 / R2 + 1, G2 = R7 / R4 + 1

Input offset voltage: 200uV (MAX)

Input offset drift: 2uV / ℃ (MAX)

Input bias current: 125nA (MAX)

Input voltage noise: 35nV√Hz (1KHz)

Module weight: 125g

Module protection: none; no reverse connection protection, unlimited current protection

The module becomes hot: there is a heat sink, and forced air cooling is required at high current

Module heating factors: the input and output voltage is too large or the module is damaged

Module working temperature: -40 ℃-+ 75 ℃ industrial grade

Module features: positive and negative power LED indication

Application range: small signal amplification, audio signal amplifier, motor drive, servo amplifier, etc.

Module interface type: SMA signal signal input and output, 5.08 blue power card wire holder.

Precautions for using the module:

(1) The power consumption of the module is large, and the power supply needs to have a certain margin. It is recommended to use a power supply with a current drive capacity greater than twice the output current. The module can only be powered by dual power supplies.

(2) In order to avoid unnecessary interference, it is recommended to use a linear power supply, the power supply cannot exceed plus or minus 40V.

(3) It is recommended to use the SMA to BNC cable to directly observe the output signal for the output signal. Poor contact or poor quality wires may cause signal attenuation or excessive noise.

(4) The SMA port is not available for power output, and a blue terminal block must be used. The SMA port is for observing the signal and must not overpower.

(5) Due to the large power consumption and heat generation, pay attention to ventilation and heat dissipation for long-term work, and add fans to strengthen heat dissipation if necessary.

(6) Since the module has a fixed magnification and no external protection circuit, it is recommended to confirm the output power and amplitude before loading to avoid damage to the module.

input:Vpp=100mV   Freq=1.00KHz

Frequently asked questions:

Q: Is the magnification fixed? How to adjust?

A: The default magnification of the module is 33 times. If you need to adjust the magnification, you can only replace the resistor on the board. The original resistor is 0805. The calculation formula is given in the parameter details.

Q: Can the module directly drive the coil?

A: The module can drive the coil, but the internal resistance of the coil is required to be greater than 4 ohms. If it is less than 4 ohms, a series power resistance is required, otherwise the module may be damaged.

Q: Can the module amplify square wave or pulse? What is the module bandwidth?

A: The module can amplify low-frequency square waves or pulses. Because it is an audio amplifier, the total bandwidth is not high. Signals within 100K can be amplified. The module is compatible with DC input.

Q: Can the module be enlarged 1: 1? That is, only the current is amplified. ?

A: The module can support 1: 1 amplification. You need to modify the resistance configuration magnification yourself. It is not recommended to directly configure the op amp follow mode, which is easy to self-excitation. It is recommended to change to resistance attenuation first, and then operation amplification; the total gain is 1 Just fine.

Q: Why the input sine wave output is square wave? What is the output current? What is the output power?

A: Generally speaking, the input signal is too large, and the op amp is amplified to the cut-off distortion, which is the square wave, or the supply voltage is not enough. Can reduce the input signal and increase the supply voltage to solve. The output current of the module is determined by the output voltage and the load. I = Uout / R. Similarly, the output power P = U * I is also determined by the output voltage and the load resistance. When high power is input, heat dissipation grease and air cooling can be added.

Q: Can I use the second level directly instead of the first level?

A: You can use the second stage directly, but you need to remove the chip of the first stage, and then input the signal from OUT1. Otherwise, the first-level chip will affect the signal input.