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PDF UTCA9849 Data sheet ( Hoja de datos )
| Número de pieza | UTCA9849 | |
| Descripción | 3-phase motor driver | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UTCA9849 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°C )
PARAMETER
SYMBOL
Applied Voltage ( with 5V Power Supply)
Vcc
Applied Voltage ( motor Power Supply1 )
VM1
Applied Voltage ( motor Power Supply2)
VM2
Power Dissipation
Pd
Operating Temperature
Topr
Storage Temperature
Tstg
Output Current
Io
Note 1:Reduced by 17.6mW for increase for Ta of 1°C over 25°C
Note 2:Tj should not exceed 150°C
Note 3:Tj should not exceed Pd or ASO value.
VALUE
7
16
16
2200(note1)
-20 ~ 75
-55 ~ 15 (Note 2)
1300 (Note 3)
UNIT
V
V
V
mW
°C
°C
mA
RECOMMENDED OPERATING CONDITIONS(Ta =25°C )
PARAMETER
SYMBOL
MIN
Power Supply Voltage
Vcc 4.25
VM1 3.0
VM2 3.0
MAX
5.5
15
15
UNIT
V
V
V
UTC
UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R109-006,A
1 page  
UTCA9849 LINEAR INTEGRATED CIRCUIT
(5) Hall Bias
VH
(6) FG output
10K
FG
100K
Fig.5
(7) FR output
30K
FR
Fig.6
(8) Short brake
8K
SB
10K
Fig.7
Note: Resistance values are typical values.
Fig.8
UTC
UNISONIC TECHNOLOGIES CO., LTD. 5
QW-R109-006,A
5 Page 
UTCA9849 LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTIC CURVES
Figure.14 Package Derating
Characteristics
2.2
2.0
1.0
0
0 25 50 75 100 125 150
Ambient Temperature : Ta (℃)
Figure.15 Power Supply Current
6.0 vs.Power Supply Voltage
5.0
4.0
3.0
2.0
1.0
0
0
1 234567
Power Supply Voltage : Vcc(V)
Figure.16 Upper-side Output Saturation Voltage
vs.Output Current
VM
VM-0.2
VM-0.4
VM-0.6
VM-0.8
VM-1.0
VM-1.2
VM-1.4
0
200 400 600 800 1000
Output Current :Io (mA)
Figure.17 Low -side Output Saturation Voltage
vs.Output Current
1.0
0.8
0.6
0.4
0.2
0
0
200 400 600 800 1000
Output Current :Io (mA)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UTC
UNISONIC TECHNOLOGIES CO., LTD. 11
QW-R109-006,A
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet UTCA9849.PDF ] | |
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