AT5801

AT5801 Preliminary 4-Channel driver + Power Controller Features ˙4 channels of H-bridge drivers. ˙Built-in DC/DC converter control circuit. ˙Built-in reset circuit. ˙Built-in reduced voltage detection circuit. ˙Built-in battery charging circuit. ˙Built-in general purpose operation amplifier. ˙Built-in thermal shutdown circuit. ˙Low power consumption. ˙QFP44 package. Description The AT5801 is a 4-channel driver and power controller that includes the reset, battery charge and reduced voltage detection circuits required for portable CD players on a single chip. The driver block power supply uses the on-chip switching regulator, making this component an ideal choice for low-power sets. Applications Portable compact disk players (CDP) Portable Mini disk player (MD) Disk-man Other portable compact disk media Block Diagram 10F-1, No.55, Tung Kuang Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 1 Email: [email protected] http://www.aimtron.com.tw 01/08/05 AT5801 Preliminary 4-Channel driver + Power Controller Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Pin name BSEN BATTY RESET DEAD SW EO EI SPRT CT N.C. OpVSYS1 OPOUT Op+ VSYS2 VREF IN3 IN4 MUTE34 IN2 MUTE2 IN1 BRAKE1 OUT4R OUT4F OUT3R OUT3F POWGND OUT2F OUT2R OUT1F OUT1R RCHG AMUTE EMP HVCC PSW CLK START OFF CHGVCC SEL PREGND PWMFIL Function Battery voltage monitor Battery power supply input Re...