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PDF UPD16856GS Data sheet ( Hoja de datos )
| Número de pieza | UPD16856GS | |
| Descripción | MONOLITHIC CD-ROM 3-PHASE SPINDLE MOTOR DRIVER | |
| Fabricantes | NEC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de UPD16856GS (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD16856
MONOLITHIC CD-ROM 3-PHASE SPINDLE MOTOR DRIVER
The µPD16856 is a CD-ROM 3-phase spindle motor driver consisting of a CMOS controller and MOS bridge
outputs.
By employing 3-phase full-wave PWM as the drive method and MOS FETs at the output stage, it has been
possible to reduce the power consumption of the µPD16856 ever further than the conventional linear drive drivers
that use bipolar transistors.
By using a 30-pin shrink SOP package, a more compact-size has been achieved.
FEATURES
• Supply voltage for controller block: 5 V, supply voltage for output block: 12 V
3 V input available for the input interface
• Low on-state resistance (total on-state resistance of upper and lower MOS FETs) RON = 1.3 Ω (TYP.)
• Low power consumption due to 3-phase full-wave PWM drive method
• On-chip hole bias switch (linked with STB pin)
• On-chip IND (FG) pulse switching function, 1-phase output or 3-phase composite output
• START/STOP pin included, acting as a brake during STOP
• Standby pins included, turning off internal circuit in standby
• Low current consumption: IDD = 3 mA (Max.), IDD (ST) = 1 µA (Max.)
• On-chip thermal shutdown circuit
• On-chip current limiting circuit; reference voltage can be set externally
• On-chip low voltage malfunction prevention circuit
• On-chip reverse rotation prevention circuit
• 30-pin plastic shrink SOP (300 mil)
ORDERING INFORMATION
Part Number
µPD16856GS
Package
30-pin shrink SOP (0.8-mm pitch, 300 mil)
The information in this document is subject to change without notice.
Document No. S13447EJ1V0DS00 (1st edition)
Date Published April 1999 N CP(K)
Printed in Japan
© 1999
1 page  
BLOCK DIAGRAM
IND 1
STB 2
VM 3
VM 4
Q5
OUT2 5
Q6
RF 6
RF 7
OUT1 8
VM 9
Q3
Q4
VM 10
OUT0 11
RF 12
Q1
Q2
RF 13
ISEN 14
CL 15
µPD16856
Phase
excitation
pulse
generator
UVLO
OSC
T.S.D
+
–
+
–
+
–
Ganged
with STB
Reverse
rotation
detection
circuit
30 EC
29 ECR
28 VDD
27 CT
26 H2+
25 H2–
24 H1+
23 H1–
22 H0+
21 H0–
20 HB
19 FGsel
18 ST/SP
17 REV
16 GND
Caution When there is more than one pin of the same kind of pin (VM and RF), all pins should be connected
to their targets.
Data Sheet S13447EJ1V0DS00
5
5 Page 
(4) Motor Drive Waveform
OUT0
PWM
µPD16856
PWM
OUT1
PWM
PWM
PWM
OUT2
PWM
PWM
Data Sheet S13447EJ1V0DS00
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet UPD16856GS.PDF ] | |
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