BCD Semiconductor Manufacturing Limited AM5901A
The AM5901A is a 4-channel motor driver with power controller that includes the reset, battery charge and reduced voltage detection circuits required for portable CD/MP3/VCD players on a single chip. This kind of IC is provided with lower startup voltage and power consumption than similar products, its driver block power supply uses on-chip switching regulator, making this component an ideal choice for low-power sets. It is used in mini portable compact disc players (CDP), portable mini disc players (MD), disc-man or other portable compact disc media.GENERAL DESCRIPTION
The AM5901A is available in PQFP-44 and LQFP-44 packages. AM5901AFEATURES
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● 4-channel H-bridge Driver 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 Operational Amplifier Built-in Thermal Shutdown Circuit Low Power Consumption
APPLICATIONS
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● Portable Compact Disc Player (CDP) Portable Mini Disc Player Portable Disc-man Portable CD/MP3/VCD Other Portable Compact Disc Media PQFP-44 LQFP-44 Figure 1. Package Types of AM5901A Mar. 2007 Rev. 1. 3 1 BCD Semiconductor Manufacturing Limited Data Sheet 4-CHANNEL MOTOR DRIVER WITH POWER CONTROLLER Pin Configuration F44 Package (PQFP-44) RCHG OUT1R OUT1F OUT2R OUT2F POWGND OUT3F OUT3R OUT4F OUT4R BRAKE1 AM5901A 33 AMUTE 32 31 30 29 28 27 26 25 24 23 22 21 IN1 34 35 EMP MUTE2 HVCC 36 37 20 19 IN2 PSW MUTE34 CLK 38 18 IN4 START 39 17 IN3 OFF 40 16 VREF CHGVCC 41 15 VSYS2 SEL 42 14 OP+ PREGND 43 13 OPOUT PWMFIL 44 1 2 3 4 5 6 7 8 9 10 11 12 VSYS1 BSEN BATT RESET DEAD SW EO EI SPRT CT N.C.