NEC UPD16856GS Datasheet
DATA SHEET
MOS INTEGRATED CIRCUIT
µµµµ
PD16856
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
• 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 Package
µ
PD16856GS 30-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.
©
1999
µµµµ
PD16856
ABSOLUTE MAXIMUM RATINGS (TA = 25
Parameter Symbol Conditions Ratings Unit
DD
Supply voltage
Input voltage V
Instantaneous output c urrent
Power consumption
Note 2
Note 1
Peak channel temperature T
Storage temperature range T
Notes 1.
Allowable current per phase while on-board
When mounted on glass epoxy board (100 mm × 100 mm × 1 mm)
2.
V
M
V
IN
DR (pulse)
I
T
P
CH (MAX)
stg
RECOMMENDED OPERATING RANGE
Parameter Symbol Conditions MIN. TYP. MAX. Unit
DD
V
M
V
Output current (DC) I
Instantaneous output c urrent IDR
Hole bias current I
IND pin output current I
CL pin input voltage V
Operating temperature
range
DR (DC)
HB
FG
CL
A
T
(pulse)
PW ≤ 5 ms, Duty ≤ 10%
C)
°°°°
PW ≤ 5 ms, Duty ≤ 30%
0.5 to +6.0 V
−
0.5 to +13.5 V
−
DD
0.5 to V
−
+ 0.5 V
2.0 A/phase
±
1.0 W
150
55 to +150
−
4.5 5.0 5.5 VSupply voltage
10.8 12.0 13.2 V
0.5 A/Phase
±
1.5 A/Phase
±
10 15 mA
0
2.5
±
5mA
±
0.1 0.4 V
20 75
−
C
°
C
°
C
°
2
Data Sheet S13447EJ1V0DS00
µµµµ
PD16856
ELECTRICAL SPECIFICATIONS (UNLESS OTHERWISE SPECIFIED, TA = 25
C, VDD = 5 V, VM = 12 V)
°°°°
Parameter Symbol Conditions MIN. TYP. MAX. Unit
[General]
Current consumption 1 (during operation) I
DD
Current consumption (in standby) IDD
(ST)
STB = V
STB = GND 1.0
DD
1.5 3.0 mA
[ST/SP, STB, REV, FGsel]
Input voltage, high V
Input voltage, low V
Input pull-down resistor R
IH
IL
IND
1.8 V
120 k
DD
0.8 V
[Controller block]
Triangle wave oscillation frequency f
PWM
CT = 100 pF 75 kHz
[Hole amplifier]
Common mode input voltage range V
Hysteresis volt age V
Input bias current I
Hch
Hhys
Hbias
1.0 3.5 V
VH = 2.5 V 15 mV
1.0
[Hole bias block]
Hole bias voltage V
HB
IHB = 10 mA 0.3 0.5 V
[FG output]
IND-pin voltage, high V
IND-pin voltage, low V
FG_H
FG_L
IFG = −2.5 mA 4.0 V
IFG = +2.5 mA 0.5 V
[Output block]
Output on-state resistance (upper stage +
lower stage)
Leakage current during OFF IDR
Output turn-on time t
Output turn-off time t
R
ONH
OFFH
ON
(OFF)
IDR = 200 mA
A
T
= −20°C to +75°C
1.3 1.8
In standby 10
RM = 5
Ω
Star connection
1.0 2.0
1.0 2.0
[Torque command]
Control reference input voltage range ECR 0.3 4.0 V
Control input voltage range EC 0.3 4.0 V
Input current I
Input voltage differenc e ECR-EC
IN
Note
DUTY = 100% 1.0 V
30 50
Dead zone (+) EC_d+ 1.5 V ≤ ECR ≤ 2.5 V 0 50 100 mV
Dead zone (−)EC_d
1.5 V ≤ ECR ≤ 2.5 V 0
−
50
−
100 mV
−
[Overcurrent detection bl ock]
Input offset volt age V
IO
15 +15 mV
−
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
2.
CH
> 150°C.
Data Sheet S13447EJ1V0DS00
TYP
.
3
PIN FUNCTIONS
Package: 30-pin Shrink SOP (300 mil)
µµµµ
PD16856
IND
STB
V
V
OUT2
RF
RF
OUT1
V
V
OUT0
RF
RF
SEN
I
CL
1
2
3
M
4
M
5
6
7
8
9
M
10
M
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
EC
ECR
DD
V
CT
H2+
H2–
H1+
H1–
H0+
H0–
HB
FGsel
ST/SP
REV
GND
Pin No. Pin Name Pin Function
1 IND Index signal out put pin
2 STB Standby operation input pin
3V
4V
M
M
Supply input pin for motor block (12 V)
Supply input pin for motor block (12 V)
5 OUT2 Motor connection pin
6 RF 3-phase bridge common pin
7 RF 3-phase bridge common pin
8 OUT1 Motor connection pin
9V
10 V
M
M
Supply input pin for motor block (12 V)
Supply input pin for motor block (12 V)
11 OUT0 Motor connection pin
12 RF 3-phase bridge common pin
13 RF 3-phase bridge common pin
14 I
SEN
Sense resistor connection pin
15 CL Overcurrent detection voltage input pin
16 GND GND pin
17 REV Reverse rotation input pin (reverse brake pin)
18 ST/SP Start/stop input pin
19 FGsel IND pulse selection pin
20 HB Hole bias pin
21 H0
−
Hole signal input pin
22 H0+ Hole signal input pin
23 H1
−
Hole signal input pin
24 H1+ Hole signal input pin
25 H2
−
Hole signal input pin
26 H2+ Hole signal input pin
27 CT Oscillation frequency setup c apacitor connection pin
28 V
DD
Controller block supply i nput pi n (5 V)
29 ECR Control reference voltage input pi n
30 EC Control 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
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
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