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UTCA9849 Datasheet

  • UTCA9849

  • 3-phase motor driver for CD-ROMs

  • 11頁

  • UTC-IC

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UTC A9849
LINEAR INTEGRATED CIRCUIT
3-phase motor driver for
CD-ROMs
DESCRIPTION
The UTC A9849 is ICs developed for CD-ROM
spindle motor drives. These ICs possess a short brake
and reverserotation brake for two types of brake
functions, and also contain FG output and rotation
direction detection (FR) circuits,making them
high-functionality and high-performance ICs
.
FEATURES
* Three-phase, full-wave, pseudo-linear drive system.
* Built-in power save and thermal shutdown functions.
* Built-in current limiter and Hall bias circuits.
* Built-in FG output.
* Built-in rotation direction detector.
* Built-in reverse rotation prevention circuit.
* Built-in short brake pin.
HSOP-28
APPLICATION
* CD-ROM, CD-R, CD-RW, DVD-ROM, and
DVD-RAM
ABSOLUTE MAXIMUM RATINGS
(Ta =25擄C )
PARAMETER
Applied Voltage ( with 5V Power Supply)
Applied Voltage ( motor Power Supply1 )
Applied Voltage ( motor Power Supply2)
Power Dissipation
Operating Temperature
Storage Temperature
Output Current
Note 2:Tj should not exceed 150擄C
Note 3:Tj should not exceed Pd or ASO value.
SYMBOL
Vcc
V
M1
V
M2
Pd
Topr
Tstg
Io
VALUE
7
16
16
2200(note1)
-20 ~ 75
-55 ~ 15 (Note 2)
1300 (Note 3)
UNIT
V
V
V
mW
擄C
擄C
mA
Note 1:Reduced by 17.6mW for increase for Ta of 1擄C over 25擄C
RECOMMENDED OPERATING CONDITIONS
(Ta =25擄C )
PARAMETER
Power Supply Voltage
SYMBOL
Vcc
V
M1
V
M2
MIN
4.25
3.0
3.0
MAX
5.5
15
15
UNIT
V
V
V
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R109-006,A

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