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PDF AN8497SA Data sheet ( Hoja de datos )
| Número de pieza | AN8497SA | |
| Descripción | 3-channel linear input PWM driver IC | |
| Fabricantes | Panasonic Semiconductor | |
| Logotipo |  |
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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
VREF
detection
SVDD
detection
ABS ABS
ABS
1
1 page  
ICs for Compact Disc/CD-ROM Player
s Application Circuit Example
High: Active
Low: Standby
Standby sgnal input
M
AN8497SA
0.1 µF
CLK synchronous
signal input
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
VREF
detection
SVDD
detection
ABS ABS
ABS
VM = 5 V
30 kΩ
30 kΩ
ch.1 input ch.2 input
8 200 pF 8 200 pF
ch.3 input
VREF = 1.65 V SVDD = 5 V
5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet AN8497SA.PDF ] | |
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