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
•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 NumberPackage
µ
PD16856GS30-pin shrink SOP (0.8-mm pi t ch, 300 mil)
(ST)
= 1 µA (Max.)
Document No. S13447EJ1V0DS00 (1st edition)
Date Published April 1999 N CP(K)
Printed in Japan
The information in this document is subject to change without notice.
lower stage)
Leakage current during OFFIDR
Output turn-on timet
Output turn-off timet
R
ONH
OFFH
ON
(OFF)
IDR = 200 mA
A
T
= −20°C to +75°C
1.31.8
In standby10
RM = 5
Ω
Star connection
1.02.0
1.02.0
[Torque command]
Control reference input voltage rangeECR0.34.0V
Control input voltage rangeEC0.34.0V
Input currentI
Input voltage differenc eECR-EC
IN
Note
DUTY = 100%1.0V
3050
Dead zone (+)EC_d+1.5 V ≤ ECR ≤ 2.5 V050100mV
Dead zone (−)EC_d
1.5 V ≤ ECR ≤ 2.5 V0
−
50
−
100mV
−
[Overcurrent detection bl ock]
Input offset volt ageV
IO
15+15mV
−
A
µ
V
Ω
A
µ
Ω
A
µ
s
µ
s
µ
A
µ
Dead zone not included.
Note
Remarks 1.
The thermal shutdown circuit (T.S.D.) operates with T
The low-voltage malfunction prevention circuit (UVLO) operates with a voltage of 4 V
26H2+Hole signal input pin
27CTOscillation frequency setup c apacitor connection pin
28V
DD
Controller block supply i nput pi n (5 V)
29ECRControl reference voltage input pi n
30ECControl voltage input pin
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.
4
Data Sheet S13447EJ1V0DS00
Page 5
BLOCK DIAGRAM
µµµµ
PD16856
IND
STB
V
V
OUT2
RF
RF
OUT1
V
V
OUT0
RF
1
2
M
3
M
4
Q5
5
UVLO
T.S.D
OSC
+
30
29
28
27
26
EC
ECR
V
DD
C
T
H2+
Q6
6
Phase
–
25
H2–
excitation
pulse
7
generator
+
24
H1+
Q3
8
–
23
H1–
Q4
M
9
M
10
+
–
22
21
H0+
H0–
Q1
11
12
Q2
Ganged
with STB
20
19
HB
FGsel
I
RF
SEN
13
14
Reverse
rotation
18
17
ST/SP
REV
detection
CL
15
circuit
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
Page 6
TOTAL POWER DISSIPATION VS. AMBIENT TEMPERATURE CHARACTERISTICS
P
T
vs. TA Characteristics
1.4
While mounted on a 100 mm ×
100 mm × 1.0 mm glass epoxy board
1.2
µµµµ
PD16856
Remark
(W)
T
1.0
0.8
0.6
Total power dissipation P
0.4
0.2
0
–200255075100125150
1.0 W
25˚C
125˚C/W
Ambient temperature T
75˚C
A
(˚C)
It is possible to apply a maximum of 1 W of power when the ambient temperature is 25°C or lower.
When the ambient temperature is higher than 25°C, derate based on the above chart.
It is possible to apply 0.6 W to the IC when the ambient temperature is 75°C, which is within recommended
ambient temperature conditions.
6
Data Sheet S13447EJ1V0DS00
Page 7
µµµµ
PD16856
STANDARD CHARACTERISTICS CURVES (UNLESS OTHERWISE SPECIFIED, TA = 25
IDD and IDD(ST) vs. VDD Characteristics
2.0
µ
1.0
Circuit current IDD (mA)
Circuit current in standby IDD(ST) ( A)
0
4.55.05.5
Controller block supply voltage VDD (V)Controller block supply voltage VDD (V)
2.0
IDD
IDD (ST)
VIH and VIL vs. VDD Characteristics
(ST/SP, REV, STB, and FGsel pins)
The setting of the standby mode allows the power supply in the device to be turned off forcibly.
The status of outputs from pins in standby is high impedance (H-bridge all OFF). In addition it is possible to
reduce the circuit current since the internal oscillation block stops.
When the stop operation is executed by the standby pin during normal operation, the motor is stopped by inertia
force.
When the normal status is reset, it takes several tens of
STB PinOperation Mode
HNormal operation mode
LStandby mode
s to be activated.
µ
Data Sheet S13447EJ1V0DS00
9
Page 10
TIMING CHART
(1) Hole Signal Input
H
0
H
1
H
2
(2) CMP Signal (FGsel = L: IND1, FGsel = H: IND2)
µµµµ
PD16856
CMP0
CMP1
CMP2
IND1
IND2
(3) Selection of Output MOS FET Drive and Comparator (A Blank Indicates Switch OFF)
To eliminate noise during PWM, it is recommended to insert a tantalum capacitor between VM and GND
(47
F in the above figure).
µ
Moreover, set VCL and RS to values within the ratings.
This circuit is for reference only and is not intended for use in mass production.
12
Data Sheet S13447EJ1V0DS00
Page 13
PACKAGE DRAWING
30-Pin Plastic Shrink SOP (300 mil) (Unit: mm)
30
16
Detail of lead end
+7
-3
3˚
µµµµ
PD16856
115
1.55±0.1
1.8 MAX.
0.1±0.1
0.8
0.35
13.0 MAX.
+0.10
–0.05
0.10
+0.10
0.9 MAX.
0.10
M
–0.05
0.20
0.6±0.2
7.7±0.3
5.6±0.2
1.05±0.2
Data Sheet S13447EJ1V0DS00
13
Page 14
µµµµ
RECOMMENDED SOLDERING CONDITIONS
PD16856 should be soldered and mounted under the following recommended conditions. For soldering methods
µ
and conditions other than those recommended below, contact your NEC sales representative.
PD16856
For the details of the recommended soldering conditions, refer to the document
•
Technology Manual (C10535E)
Soldering MethodSoldering ConditionsRecommended
Infrared reflowPackage peak temperat ure: 235°C, Time: 30 sec. Max. (at 210°C or higher),
Count: three times or less, Exposure limit: none
with little chlorine c ontent (chlorine: 0.2 Wt% Max.) is recommended
VPSPackage peak temperature: 215°C, Time: 40 sec. Max. (at 200°C or higher),
Count: three times or less, Exposure limit: none
with little chlorine c ontent (chlorine: 0.2 Wt% Max.) is recommended
Wave solderingPackage peak temperature: 260°C, Time: 10 sec. Max . , Proheating
temperature: 120°C Max., Count: once, Fl ux: Rosin-based flux with l i t tle
chlorine content (chlorine: 0.2 Wt% Max.) is recommended
After opening the dry pack, store it at 25°C or less and 65% RH or less for the allowable storage period.
Note
.
Note
, Flux: Rosin-based flux
Note
, Flux: Rosin-based flux
Semiconductor Device Mounting
Condition Symbol
IR35-00-3
VP15-00-3
WS60-00-1
Caution Do not use different soldering methods together.
14
Data Sheet S13447EJ1V0DS00
Page 15
µµµµ
PD16856
Regional Information
Some information contained in this document may vary from country to country. Before using any NEC
product in your application, pIease contact the NEC office in your country to obtain a list of authorized
representatives and distributors. They will verify:
•
Device availability
•
Ordering information
•
Product release schedule
•
Availability of related technical literature
•
Development environment specifications (for example, specifications for third-party tools and
components, host computers, power plugs, AC supply voltages, and so forth)
•
Network requirements
In addition, trademarks, registered trademarks, export restrictions, and other legal issues may also vary
from country to country.
NEC Electronics Inc. (U.S.)
Santa Clara, California
Tel: 408-588-6000
800-366-9782
Fax: 408-588-6130
800-729-9288
Electron Devices Division
Rodovia Presidente Dutra, Km 214
07210-902-Guarulhos-SP Brasil
Tel: 55-11-6465-6810
Fax: 55-11-6465-6829
J99.1
Data Sheet S13447EJ1V0DS00
15
Page 16
µµµµ
PD16856
No part of this document may be copied or reproduced in any form or by any means without the prior written
consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this
document.
NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual
property rights of third parties by or arising from use of a device described herein or any other liability arising
from use of such device. No license, either express, implied or otherwise, is granted under any patents,
copyrights or other intellectual property rights of NEC Corporation or others.
While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices,
the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or
property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety
measures in its design, such as redundancy, fire-containment, and anti-failure features.
NEC devices are classified into the following three quality grades:
"Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on
a customer designated "quality assurance program" for a specific application. The recommended applications
of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each
device before using it in a particular application.
Standard: Computers, office equipment, communications equipment, test and measurement equipment,
audio and visual equipment, home electronic appliances, machine tools, personal electronic
equipment and industrial robots
Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster
systems, anti-crime systems, safety equipment and medical equipment (not specifically designed
for life support)
Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life
support systems or medical equipment for life support, etc.
The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books.
If customers intend to use NEC devices for applications other than those specified for Standard quality grade,
they should contact an NEC sales representative in advance.
Anti-radioactive design is not implemented in this product.
M4 96. 5
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