Pages

Monday, 18 March 2019

AOC POWER BOARD 715G5654-P01-001-002S CIRCUIT



Details : 
  • BOARD : 715G5654-P01-001-002S 
  • APPLICATION: LED TV
  • MODEL : LE32A1330/61
  • PCB :  POWER SUPPLY &  INVERTERS
  • BRAND : AOC , HAIER , SONY 

CIRCUIT :
                 
LINK : Download This Circuit In PDF Format

Thursday, 14 March 2019

LED TV Backlight Circuit Useing MP3398A / MPS1728



Description : 
  The MP3398A is a step-up controller with 4 current channels, which is designed to drive WLED arrays for large-size LCD-panel backlighting applications. It is flexible to expand the number of LED channels by two or more ICs in parallel sharing a single inductive power source.

The MP3398A is a step-up controller with 4 current channels, which is designed to drive WLED arrays for large-size LCD-panel backlighting applications. It is flexible to expand the number of LED channels by two or more ICs in parallel sharing a single inductive power source.

The MP3398A applies 4 internal current sources for current balance. The current matching can achieve 2.5% regulation accuracy between strings. Its low regulation voltage on LED current sources reduces power loss.

The MP3398A can support both analog and PWM dimming independently to meet the different dimming-mode request. In addition, rich protection modes are also integrated including OCP, OTP, UVP, OVP, LED short/open protection, inductor/diode short protection.

Features : 

  • 4-String, Max 350mA/String WLED Drive
  • 5V to 28V Input Voltage Range
  • 2.5% Current Matching Accuracy Between Strings 
  • Programmable Switching Frequency 
  • PWM and Analog Dimming Mode 
  • Cascading Capability with a Single Power Source 
  • LED Open and Short LED Protection 
  • Programmable Over-Voltage Protection
  • Recoverable Thermal Shutdown Protection 
  • Over Current Protection
  • Inductor/Diode short Protection 
  • Under-Voltage Lockout 


Link : 
                Download This Circuit in pdf format.

AD52060 Audio Amplifire Circuit






Details : 
The AD52060 is a high efficiency stereo class-D audio amplifier with adjustable power limit function. The loudspeaker driver operates from 8V~26V supply voltage. It can deliver 20W/CH output power into 8Ω loudspeaker within 1% THD+N at 24V supply voltage and without external heat sink when playing music.
 AD52060 provides parallel BTL (Mono) application, and it can deliver 40W into 4Ωloudspeaker at 24V supply voltage. The adjustable power limit function allows user to set a voltage rail lower than half of 5V to limit the amount of current through the speaker.
 Output DC detection prevents speaker damage from long-time current stress. AD52060 provides superior EMC performance for filter-free application. The output short circuit and over temperature protection include auto-recovery feature. 
Features:
  • Single supply voltage 8V ~ 26V for loudspeaker driver Built-in LDO output 5V for others..
  • Loudspeaker power from 24V supply BTL Mode: 20W/CH into 8Ω @<1% THD+N PBTL Mode: 40W/CH into 4Ω @<10% THD+N.
  • Loudspeaker power from 12V supply BTL Mode: 10W/CH into 8Ω @10% THD+N.
  • 88% efficient Class-D operation eliminates need for heat sink.
  • Differential inputs.
  • Four selectable, fixed gain settings.
  • Internal oscillator.
  • Under-Voltage detection.
  • Short-Circuit protection with auto recovery option.
  • Over-Voltage protection.
  • Pop noise and click noise reduction.
  • Adjustable power limit function for speaker protection.
  • Output DC detection for speaker protection.
  • Filter-Free operation.
  • Over temperature protection with auto recovery.
  • Superior EMC performance.   





    Link :  
            Full circuit download in pdf format          

    TPA3110LD2 Pinout Diagram



    Description :
    The TPA3110D2 is a 15-W (per channel) efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers. Advanced EMI Suppression Technology enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. SpeakerGuard™ speaker protection circuitry includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter allows the user to set a "virtual" voltage rail lower than the chip supply to limit the amount of current through the speaker. The DC detect circuit measures the frequency and amplitude of the PWM signal and shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs.
    The TPA3110D2 can drive stereo speakers as low as 4 Ω. The high efficiency of the TPA3110D2, 90%, eliminates the need for an external heat sink when playing music.
     The outputs are also fully protected against shorts to GND, VCC, and output-to-output. The short-circuit protection and thermal protection includes an autorecovery feature.

     Features :

    • 15-W/ch into an 8-Ω Loads at 10% THD+N From a 16-V Supply 
    • 10-W/ch into 8-Ω Loads at 10% THD+N From a 13-V Supply 
    • 30-W into a 4-Ω Mono Load at 10% THD+N From a 16-V Supply
    • 90% Efficient Class-D Operation Eliminates Need for Heat Sinks 
    • Wide Supply Voltage Range Allows Operation From 8 V to 26 V 
    • Filter-Free Operation
    • SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter Plus DC Protection 
    • Flow Through Pin Out Facilitates Easy Board Layout
    • Robust Pin-to-Pin Short Circuit Protection and Thermal Protection With Auto Recovery Option
    • Excellent THD+N / Pop-Free Performance 
    • Four Selectable, Fixed Gain Settings 
    • Differential Inputs



    Link : 
             Full circuit download  in pdf format 

    Tuesday, 5 March 2019

    YD1517P Circuit Diagram







    Details: 
      The YD1517P is an integrated class-B dual output amplifier in a 18-lead dual in-line (DIP18) plastic medium power package. The device is primarily developed for multi-media applications. 

    FEATURES :
    • Requires very few external components
    • High output power *Fixed gain
    • Good ripple rejection 
    • Mute/stand-by switch 
    • Load dump protection
    • AC and DC short-circuit-safe to ground and Vcc 
    • Thermally protected
    • Reverse polarity safe 
    • Capability to handle high energy on outputs (Vcc=0V) 
    • No switch-on/switch-off plop
    • Protected against electrostatic discharge  
    Circuit :




    Popular Posts