SA5901 Datasheet, PDF (1/24 Pages) Silan Microelectronics Joint-stock – 4-CHANNEL MOTOR DRIVER FOR PORTABLE CD PLAYER

SA5901
4-CHANNEL MOTOR DRIVER FOR PORTABLE CD PLAYER
DESCRIPTION
SA5901 is suitable for portable CD player with 4-ch H bridge drivers
and DC/DC converter control circuit. Because of the small package QFP-
44, it is most suitable for small equipment.
FEATURES
QFP44-10 x10-0.8
∗ Four channels of H-bridge drivers are contained.
∗ DC/DC converter control circuit is contained.
∗ Reset circuit
∗ Reduced voltage detection circuit.
LQFP44-10 x10-0.8
∗ Battery charging circuit
∗ General purpose operational amplifier is contained
∗ Low power consumption
ORDERING INFORMATION
∗ Thermal shutdown circuit
∗ QFP-44 package
<H-bridge driver>
∗ Load drive voltage can be processed by PWM control through an
Device
Package
SA5901A QFP44-10 X 10-0.8
SA5901L LQFP44-10 X 10-0.8
external component.
∗ Excellent gain can be obtained by a voltage feedback circuit.
∗ Mute function is disabled for ch1, ch2 and ch3/ch4 respectively.
<Battery charging circuit>
∗ Constant current battery
charging system allows varying
<DC/DC converter control circuit>
current value through
∗ Starter and power off function
∗ Soft-start function and short-circuit protection function
∗ Self-advancing oscillation and clock synchronization are available.
resistance.
∗ It is separated from any other
blocks and it can be operated
<Reset circuit>
∗ Reset voltage is interlocked with the set voltage of DC/DC converter.
∗ Inversion output pin for reset output is available.
independently.
∗ A charging power transistor is
contained.
<Reduced voltage detection circuit>
∗ Battery charger and dry battery allow to switch “Empty” detection
∗ Independent thermal shutdown
circuit is contained.
level.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.3 2006.02.27
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