LA4227

Ordering number : ENA5718 Monolithic Linear IC LA4227 Overview Audio Output for Radio Cassette Recorders 3W × 2ch Power Amplifier LA4227 is a 3W 2-channel power amplifier. This IC requires few external components and is ideal for power amplifier used for radio cassette players/recorders. Functions 3W × 2 channel (VCC = 9V, RL = 3Ω) Standby switch on chip Thermal shutdown protector on chip Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg www.DataSheet4U.com Conditions Rg = 0 (No signal) Arbitrarily large heat sink Ratings 20 4.0 -20 to +75 -55 to +150 Unit V W °C °C Operating Conditions at Ta=25°C Parameter Recommended supply voltage Operating voltage range Operating load resistance range Symbol VCC VCC op RL op Bridge Not exceeding the maximum ratings Conditions Ratings 9 4.2 to 18 3 to 8 8 unit V V Ω Ω 42706 MS JK B8-7553, B8-4892, B8-3581 No.A5718-1/4 LA4227 Electrical Characteristics at Ta = 25°C, VCC = 9V, RL = 4Ω, f = 1kHz, Rg = 600Ω, RNF = 43Ω Parameter Quiescent current Voltage gain Voltage gain difference Total harmonic distortion Output power Symbol ICCO VG ∆VG THD PO1 PO2 PO3 Output noise voltage VNO1 VNO2 Channel separation Ripple rejection Standby current Input resistance Chsep SVRR Ist Ri 21 30 PO = 0.25W (VO = 1V) THD = 10% RL = 3Ω, THD = 10% Bridge, RL = 8Ω, THD = 10% Rg = 0, DIN AUDIO Rg = 10kΩ, DIN AUDIO VO = 0dBm, Rg = 10kΩ Vr=...