Datasheet

UPC1298V PDF – Audio Power Amplifier ( Datasheet )

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Part Number: UPC1298V

Function: 50 to 80 W power amplifier driver

Package: 14 Pin type

Manufacturer: NEC ( Renesas Technology )

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UPC1298V datasheet

Description

UPC1298V is a monolithic power amplifier driver IC from NEC (Renesas), designed for 50W to 80W class HiFi audio amplifier applications in a 14-pin package. It integrates a differential input stage, predriver, driver circuitry, and overcurrent protection to simplify high-power audio amplifier design. This device offers low distortion performance with wide frequency and power bandwidth, making it suitable for high-fidelity audio systems.

Features

  • Integrated power amplifier driver for 50W to 80W output stages
  • Low distortion characteristics for high-quality audio reproduction
  • Wide frequency bandwidth of approximately 900kHz (-3dB)
  • Wide power bandwidth of approximately 90kHz
  • Built-in input differential amplifier
  • Integrated predriver and driver stages
  • Overcurrent protection circuit included
  • 14-pin package for compact amplifier designs

Block Diagram and Pinouts

UPC1298V pinouts

Design Notes

  • Proper heat sinking is required for the external output stage transistors in high-power designs
  • Use symmetric PCB layout to minimize distortion and maintain signal integrity
  • Power supply decoupling is critical to avoid oscillation at high frequencies
  • Ensure correct biasing of the output stage to reduce crossover distortion
  • Overcurrent protection should be validated with real load conditions

How to Choose This Part

  • Select for medium-to-high power audio amplifier designs (50W to 80W range)
  • Suitable for applications requiring low distortion and wide bandwidth
  • Ideal when integrating driver and protection circuits in a single IC
  • Consider for designs using discrete output transistors

Applications

  • Home audio HiFi systems
  • Audio amplifiers and receivers
  • Professional sound equipment
  • Multimedia speaker systems

Alternative / Equivalent Products

  • UPC1297V
  • TA7317P
  • LM4702
  • STK amplifier modules (integrated alternatives)

UPC1298V Datasheet PDF Download


UPC1298V pdf

Other data sheets are available within the file: UPC1298, μPC1298V

STRW6556A Datasheet PDF – Regulator, Power Controller

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Part Number: STRW6556A

Function: Regulator, Power Supply, Power Controller

Package: TO-220 Type

Manufacturer: Sanken

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STRW6556A datasheet pinout

Description

This is regualtor, Power Management Chip. The STRW6556A is a power regulator and PWM switching controller IC with an integrated MOSFET, packaged in a TO-220 form factor for off-line power supply applications. It provides high efficiency, low standby power consumption, and built-in protection features for reliable operation in switching regulators. This device is commonly used in SMPS designs for TVs, adapters, and general-purpose AC-DC power supplies.

Features

  • Integrated high-voltage power MOSFET
  • Low standby power consumption
  • Quasi-resonant switching for improved efficiency
  • Built-in overcurrent protection (OCP)
  • Overvoltage protection (OVP)
  • Thermal shutdown protection
  • Reduced EMI noise operation
  • TO-220 package for effective heat dissipation

STRW6556A absolute maximum ratings

(1) Control Supply Voltage, VCC: 35 V
(2) Drain-Source Voltage, VDSS: 650 V
(3) Drain Switching Current, ID: 15 A
(4) Peak Drain Switching Current,IDM: 15 A
(5) Single-Pulse Avalanche Energy, EAS: 400 mJ
(6) OCP/BD Voltage Range, VOCP: 1.5 V to +5 V
(7) FB Input Current, IFB: 10 mA
(8) FB Voltage Range, VFP: 0.5 V to +9 V
(9) Package Power Dissipation, PD: 0.8 W
(10 )MOSFET Channel Temp., TJ : +150 °C
(11) Internal Frame Temp., TF: +115 °C
(12) Operating Temperature Range,TA: -20°C to +115 °C
(13) Storage Temperature Range, TS: -40°C to +125 °C

 

Pinout and Block Diagram

STRW6556A block diagram

Typical Circuit Usage

  • Flyback converter in AC-DC power supplies
  • Standby power supplies with low no-load consumption
  • SMPS for televisions and monitors
  • Adapter and charger circuits
  • Auxiliary power supplies in industrial systems

How to Choose This Part

  • Choose for integrated PWM + MOSFET solutions to reduce component count
  • Suitable for medium power SMPS applications
  • Ideal for designs requiring low standby power compliance
  • Consider thermal design and enclosure constraints
  • Verify compatibility with required output power and topology

Applications

  • AC-DC switching power supplies
  • TV and monitor power circuits
  • Power adapters
  • Battery chargers
  • Industrial SMPS systems

Alternative / Equivalent Products

  • STR-W6554A
  • STR-W6553A
  • STR-W6555A
  • ICE3BR1765J
  • FSDM0565RB

STRW6556A Datasheet

STRW6556A pdf

COLOR TV BASIC SCHEMATIC DIAGRAM : Power Controller.pdf


Other data sheets are available within the file: STR-W6556A-F5, STR-W6556A, STRW6556