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File name:la4261.pdf
[preview LA4261]
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Mfg:Sanyo
Model:LA4261 🔎
Original:LA4261 🔎
Descr:3.5W 2-channel AF power amplifier for home stereos and music centres
Group:Electronics > Components > Integrated circuits
Uploaded:09-03-2004
User:plamensl
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File name la4261.pdf

Ordering number: EN1321E Monolithic Linear IC LA4261 3.5 W 2-Channel AF Power Amplifier for Home Stereos and Music Centers Features Package Dimensions 3018A-SIP10F unit : mm [LA4261] . Minimum number of external parts required (No input . capacitor, bootstrap capacitor required). output: 3.5 ×2. . Highclip, causingW typ.harmonic disturbance to radios Soft little . (See page 8). at the time of power switch ON/OFF Small pop noise . (See page 8). against abnormal modes (Thermal Built-in protector shutdown, overvoltage). SANYO : SIP10F Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature Symbol VCCmax IOP Pd max Topr Tstg 1 channel With heat sink (see Pd ­ Ta characteristics) Conditions Ratings 25 2.0 7.5 ­20 to +75 ­40 to +150 Unit V A W °C °C Operating Conditions at Ta = 25°C parameter Recommended supply voltage Recommended load resistance Operating supply voltage range Symbol VCC RL VCC op Conditions Ratings 16 8 9 to 24 Unit V V SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 22897HA(II)/71093TS/2126KI/8064KI/8053KI,MT No.1321-1/8 LA4261 Operating Characteristics at Ta = 25°C, VCC = 16 V, RL = 8 , f = 1 kHz, Rg = 600 , (circuit 1) Parameter Quiescent current Voltage gain Output power Total harmonic distortion Output noise voltage Ripple rejection ratio Crosstalk Voltage gain difference Symbol ICCO VG PO THD VNO Rr CT VG THD = 10% PO = 0.5 W Rg = 10 k, BW = 20 Hz to 20 kHz Rg = 0, Vr = 500 mV Rg = 10 k 40 40 48 3.0 Conditions min typ 46 50 3.5 0.3 0.65 50 55 1.5 1.0 1.5 max 62 52 Unit mA dB W % mV dB dB dB Equivalent Circuit Block Diagram Allowable power dissipation, Pd max ­ W Thermal resistance of heat sink, f ­ °C/W Pd max ­ Ta Infinite heat sink Al heat sink Tightening torque 39 Nccm Silicon grease applied Thermal resistance between junction and outside air j-c 10°C/W f ­ Sf Al heat sink t = 1.5 mm 2.5 No heat sink Ambient temperature, Ta ­ °C Area of heat sink, Sf ­ cm2 No.1321-2/8 LA4261 Sample Application Circuit 1: Recommended Circuit Sample Application Circuit 2: Circuit with minimum number of external parts Unit (resistance: , capacitance: F) Sample Printed Circuit Pattern Unit (resistance: , capacitance: F) Description of External Parts C1, C4 100 µF Feedback capacitor Decreasing the capacitance value lowers the low frequency response. Increasing the capacitance value makes the starting time later. Input short capacitor Reduces the high frequency noise when the input impedance is increased. Not required when the input impedance is decreased. Output capacitor Decreasing the capacitance value causes insufficient power at low frequencies. Oscillation blocking capacitor Decreasing the capacitance value causes oscillation to occur easily. Use a polyester film capacitor that is good in high frequency response and te

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