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LA4485 Datasheet(PDF) 1 Page - Sanyo Semicon Device |
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LA4485 Datasheet(HTML) 1 Page - Sanyo Semicon Device |
1 / 20 page 5 W, Two-channel Power Amplifier with Very Few External Parts Overview The LA4485 is a 5 W, two-channel power amplifier IC that requires a minimum of external parts, making it ideal for radio cassette players and car stereo equipment. The LA4485 eliminates the need for bootstrap capacitors, negative feedback capacitors, and oscillation prevention CR parts, all of which were necessities for power ICs previously. All of these functions are now on chip, keeping the number of external parts to an absolute minimum. The LA4485 is part of the Power (Stylish Power) Series, and supports two modes: dual and BTL. Features . 5W × 2 output power in dual mode, and 15 W in BTL mode . Minimum external parts for the Power Series count: 4 or 5 parts in dual mode; 3 or 4 parts in BTL mode . Protection circuits Overvoltage protection Thermal protection DC output short-circuit protection (to VCC and to GND) . Circuitry designed to handle +VCC applied to the outputs . Pop noise reduction . Standby switch . Muting function Package Dimensions unit : mm 3107-SIP13H [LA4485] SANYO : SIP13H Specifications Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max No signal 24 V Surge supply voltage VCC surge * Based on the JASO standard 50 V Peak output current IO peak Per channel 3.3 A Allowable power dissipation Pd max With infinite heat sink 15 W Operating temperature Topr –30 to +80 °C Storage temperature Tstg –40 to +150 °C *: By the π type B check point method. Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit Recommended supply voltage VCC 13.2 V Supply voltage range VCC op Must not be over package Pd 7.5 to 18 V Recommended load resistance range RL Dual 2 to 8 Ω BTL 4to8 Ω Ordering number: EN3680C Monolithic Linear IC LA4485 SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 73096HA(II)/D2893TS/9041TS No.3680-1/20 |
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