AN8497SA Datasheet, PDF (1/5 Pages) Panasonic Semiconductor – 3-channel linear input PWM driver IC

ICs for Compact Disc/CD-ROM Player
AN8497SA
3-channel linear input PWM driver IC
s Overview
The AN8497SA is a PWM output 3-channel
driver IC supporting linear inputs, and best suited for
an actuator and a motor drive for CD-ROM and
DVD-ROM. Due to its linear input, a conventional
system can be used only by replacing a driver. And,
due to an adoption of PWM output, you can reduce
considerably power consumption compared with a
conventional driver. Further a space saving surface
mount package is adopted thanks to its low thermal
generation.
s Features
• Maximum 64% reduction of power consumption
compared with a conventional linear 3-channel
driver IC
• Free gain setting by an external resistor due to
voltage feedback
• Standby function available (standby current < 20 µA)
• Only for supply voltage 5 V
• Phase compensation function
s Applications
• Optical disk drive
s Block Diagram
11.0±0.3
32
17
1
16
(0.625)
0.65
0.3
+0.10
–0.05
Seating plane
SSOP032 P-0300
Unit: mm
0.2^{+–00..0150}
(0.5)
H
bridge
H
bridge
Standby
(full circuit)
H
bridge
Pre-
driver
Pre-
driver
V/I
Pre-
driver
V/I
Charge pump
V/I
Logic
Logic
Triangular
wave
oscillator
Logic
TSD
V_REF
detection
SV_DD
detection
ABS
ABS
ABS
1