AZ5954

4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD General Description The AZ5954 is a four-channel BTL driver IC for driving the motors and actuators in products such as CDROM and DVD. Two of the channels use current feedback to minimize the current phase shift caused by the influence of load inductance. The IC is used in CDROM drivers and DVD drivers, etc. w w w .D at h S a t e e 4U . m o c Data Sheet AZ5954 Features · · · · Wide Dynamic Range (3.9V(Typ.) When VCC = 12V, PVCC=5V and RL=8Ω) Level Shift Circuit On Chip Thermal Shutdown Circuit On Chip Internal Standby Mode The AZ5954 is available in HSOP-28 package. Applications · · CD-ROM Driver DVD Driver w w w .D t a S a e h t e U 4 .c m o HSOP-28 Figure 1. Package Type of AZ5954 Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 1 w w w .D at h S a t e e 4U . m o c Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD Pin Configuration M Package (HSOP-28) AZ5954 VINFC CFCerr1 CFCerr2 VINSL+ VINSLVOSL VNFFC FIN (GND) 1 2 3 4 5 6 7 28 27 26 25 24 23 22 STBY BIAS VINTK CTKerr1 CTKerr2 VINLD GND FIN (GND) VCC PVCC1 PGND VOSLVOSL+ VOFCVOFC+ 8 9 10 11 12 13 14 21 20 19 18 17 16 15 PVCC2 VNFTK PGND VOLDVOLD+ VOTKVOTK+ Figure 2. Pin Configuration of AZ5954 (Top View) Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 2 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD Pin Description (Note 1) Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2...