AT5802
AT5802 is Preliminary 4-Channel driver + Power Controller manufactured by Aimtron Technology.
Features
˙4 channels of Power-Mos H-bridge drivers. ˙Built-in DC/DC converter control circuit. ˙Built-in reset circuit. ˙Built-in VG booster circuit. ˙Built-in voltage down regulator circuit. ˙Built-in On/OFF function ˙Low power consumption. ˙Direct PWM drive system. ˙QFP44 package.
Description
The AT5802 is a 4-channel driver and power controller for portable CD players on a single chip. The driver block power supply uses the on-chip switching regulator, making this ponent an ideal choice for low-power sets.
Applications
Disc-man Portable pact disc players (CDP) Portable Mini disc player (MD) Other portable pact disc media
Block Diagram
PGND2
PGND1
PVCC2
PVCC1
OUT2+
OUT3+
OUT4+
OUT1-
OUT2-
OUT3-
OUT423
OUT1+ SPRT SOFT CT DC_IN REGB REGO GND PGND3 LG VG
34 PRE-DRIVER 35 PRE-DRIVER PRE-DRIVER PRE-DRIVER
FIL4 FIL3 FIL2 FIL1 VREF IN4 IN3 IN2 IN1 RESET MUTE1
38 REGULATOR SWITCH...