Ordering number : ENN7901 SANYO Semiconductors DATA SHEET Monolithic Linear IC Four-Channel 45 W BTL Car Audio LA47536 Power Amplifier Overview The LA47536 is a 4-channel BTL power amplifier IC developed for use in car audio systems. The output stage features a pure complimentary structure that uses V-pnp transistors on the high side and npn transistors on the low side to provide high power and superb audio quality. The LA47536 includes almost all the functions required for car audio use, including a standby switch, a muting function, and each protection circuit. It also provides a self-diagnosis function (output offset detection). Functions and Features Voltage gain: 32 dB High output power Pomax(1) = 45 W (typical) (At V = 14.4 V, f = 1 kHz, Vi = 2.5 Vrms, RL = 4 ) CC Pomax(2) = 40 W (typical) (At V = 13.7 V, f = 1 kHz, Vi = 2.5 Vrms, RL = 4 ) CC Po = 28 W (typical) (At V = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 ) CC Muting function (pin 22) Standby switch (pin 4) Built-in various protection circuits Output pin-to-V short CC Output pin-to-GND short Load short Over voltage Thermal shut down Self-diagnosis function that detects the output offset (pin 25) Output offset detection on/off switch (pin 1) Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein. SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 40804TN (OT) No.7901-1/7LA47536 Specifications Maximum Ratings at Ta = 25C Parameter Symbol Conditions Ratings Unit V max1 No signal, t = 1 minute 26 V CC Maximum supply voltage V max2 With an input signal applied 18 V CC Maximum output current I peak Per channel 4.5/ch A O Allowable power dissipation Pd max Assuming an infinite heat sink 50 W Operating temperature Topr 40 to +85 C Storage temperature Tstg 40 to +150 C Junction to case thermal resistance q j-c 1 C/W Recommended Operating Conditions at Ta = 25C Parameter Symbol Conditions Ratings Unit Recommended supply voltage V 14.4 V CC Recommended load resistance R op 4 L Operating supply voltage range V op The range where Pd max is not exceeded 9 to 18 V CC Electrical Characteristics at Ta = 25C, V = 14.4 V, RL = 4 , f = 1 kHz, Rg = 600 CC Ratings Parameter Symbol Conditions Unit min typ max Quiescent current I R = , Rg = 0 200 400 mA CCO L Standby current Ist Vst = 0 10 A Output offset V offset Rg = 0 150 +150 mV N Voltage gain VG V = 0 dBm 31 32 33 dB O Voltage gain difference VG 1 +1 dB P THD = 10% 23 28 W O 1 Output power P max1 V = 13.7 V, V = 2.5 Vrms 40 W O CC IN P max2 V = 2.5 Vrms 45 W O IN Total harmonic distortion THD P = 4 W 0.1 0.4 % O Channel separation CHsep V = 0 dBm, Rg = 10 k 50 60 dB O Ripple rejection ratio SVRR Rg = 0, fr = 100 Hz, Vccr = 0 dBm, 20 Hz to 20 kHz 40 45 dB Output noise voltage V Rg = 0, 20 Hz to 20 kHz 300 450 Vrms NO Muting attenuation Ma V = 20 dBm 70 90 dB O Output center point potential VN Rg = 0 2.65 V Package Dimensions unit : mm 3236 Pd max Ta 60 INFINTE HEAT SINK q j-c=1C/W 50 40 HEAT SINK(q f=3.5 C/W) q j-c+q f=4.5 C/W 30 20 10 NO HEAT SINK q j-a=39 C/W 0 SANYO : HZIP25 40 20 0 20 40 60 80 100 120 140 160 Ambient temperature, Ta C ILA06775 No.7901-2/7 Allowable power dissipation, Pd max W