SANYO LB1916

Ordering number : EN5653
Monolithic Digital IC
LB1916
CD-ROM Spindle Motor Driver
Overview
The LB1916 is a 3-phase motor driver that is optimal for
driving CD-ROM spindle motors.
Functions and Features
• 3-phase brushless motor driver
• 120° voltage linear drive control
• V-type input used for the control voltage
• Control gain switching supported
• Pins for system control and control of acceleration and
deceleration provided.
• Start/stop pin provided.
• Hall bias circuit
Package Dimensions
unit: mm
3219-QFP34H-C
Allowable power dissipation, Pdmax – W
[LB1916]
Ambient temperature, Ta – °C
SANYO: QFP34H-C
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Output voltage
Output current
Symbol
Conditions
Unit
14
VCC2 max
7.0
V
VOU, V, W
13
V
IOUT
Allowable power dissipation
Ratings
VCC1 max
Pd max
Independent IC
V
1.0
A
0.77
W
Operating temperature
Topr
–20 to +75
°C
Storage temperature
Tstg
–55 to +150
°C
Ratings
Unit
Allowable Operating Ranges at Ta = 25°C
Parameter
Symbol
Conditions
VCC1
Supply voltage
VCC2
VCREF input voltage
VCREF
5 to 12.5
VCC1 ≥ VCC2
V
4.3 to 6.5
V
VCC2/2±1.0
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
53197HA(OT) No. 5653-1/7
LB1916
Electrical Characteristics at Ta = 25°C, VCC1 = 12 V, VCC2 = 5 V
Parameter
Supply current drain
(ICC for VCC1)
Symbol
Conditions
Ratings
min
typ
Unit
max
ICC1
VC = 2.5 V, VCREF = 2.5 V, RL = ∞,
VS/S = 5 V, VRF = GND
17
30
mA
ICC2
VC = 2.5 V, VCREF = 2.5 V
7.5
10.5
mA
ICC3
VC = 2.5 V, VCREF = 2.5 V, RL = ∞,
VS/S = 0 V, VRF = GND
0.9
3
mA
VO(sat)1
IOUT = 0.4 A, sink + source
1.6
2.2
V
VO(sat)2
IOUT = 0.8 A, sink + source
2.0
3.0
V
VO(sus)
IOUT = 20 mA, *
14
VC = 2.5 V, VCREF = 2.5 V
5.7
6.0
6.3
V
+5
mV
5
µA
[Drive Block]
Output saturation voltage
Output TRS sustainable voltage
Output center voltage
Hall amplifier input offset voltage
Hall amplifier input bias current
VOQ
VH offset
V
–5
IH bias
1
Hall amplifier common-mode input voltage range
VHch
1.3
Hall input/output voltage gain
VGHO
38
41
26
Control - output drive gain 1
Control - output channel difference 1
Control - output drive gain 2
Control - output channel difference 2
Input dead band voltage
Input bias current 1
VGCO1
RZ1 = RZ2, GC1 = L, GC2 = L
23
∆VGCO1
RZ1 = RZ2, GC1 = L, GC2 = L
–1.5
VGCO2
RZ1 = RZ2, GC1 = L, GC2 = H
29
∆VGCO2
RZ1 = RZ2, GC1 = L, GC2 = H
–1.9
VDZ
IB SERVO
RZ1 = RZ2, GC1 = L, GC2 = H
VO (voltage between out and OUT) = 0.1 V
S/S pin high-level voltage
VS/S H
S/S pin low-level voltage
VS/S L
Inputs are CMOS level,
(See Note.) S/S pin Vth = VCC2/2
Gain control 1 high-level voltage
VGC1 H
Inputs are CMOS level,
(See Note.) GC1 pin Vth = 2.0 V
Gain control 1 low-level voltage
VGC1 L
Inputs are CMOS level,
(See Note.) GC1 pin Vth = 2.0 V
Gain control 2 high-level voltage
VGC2 H
Inputs are CMOS level,
(See Note.) GC2 pin Vth = 2.0 V
Gain control 2 low-level voltage
VGC2L
Inputs are CMOS level,
(See Note.) GC2 pin Vth = 2.0 V
V
44
dB
+1.5
dB
+1.9
dB
±50
mV
500
nA
dB
32
±24
VC = 1.0 V
Inputs are CMOS level,
(See Note.) S/S pin Vth = VCC2/2
2.2
dB
4.0
V
1.0
4.0
V
V
1.0
4.0
V
V
1.0
V
S/S pin input current
IS/S
Input voltage = 5 V
50
100
µA
Gain control 1 and 2 current
IGC
Input voltage = 5 V
53
110
µA
0.24
0.5
V
7
V
1.2
V
Rotation output saturation voltage
V(sat)H.FG1, 2
IO = –5 mA
V(sus)H.FG1, 2 *
Hall bias voltage
VH±
IO = 5 mA, RH = 200 Ω
0.7
4.0
CTRL pin high-level voltage
VS/S H
CTRL1 and CTRL2 are common,
Inputs are CMOS level,
(See Note.) CTRL pin Vth = 2.5 V
CTRL pin low-level voltage
VS/S L
CTRL1 and CTRL2 are common,
Inputs are CMOS level,
(See Note.) CTRL pin Vth = 2.5 V
CTRL input pin
ICTRL
Input voltage = 5 V
Thermal shutdown operating voltage
TSD
*
∆TSD
*
Thermal shutdown hysteresis
150
0.97
V
1.0
V
53
110
µA
180
210
°C
15
°C
Note: Items marked with an asterisk are design target values and are not tested.
No. 5653-2/7
LB1916
Hall Logic Truth Table
Source → Sink
1
2
3
4
5
6
W→V
V→W
W→U
U→W
V→W
W→V
U→V
V→> U
V→U
U→V
U→W
W→U
Mode Switching Truth Table
CTRL0
CTRL1
Mode
L
L
Control
Forward
L
H
Control
Reverse
H
L
Acceleration
H
H
Deceleration
Hall input
UIN
VIN
WIN
H
H
L
H
L
L
L
L
H
L
H
L
H
L
H
L
H
H
Forward/reverse control
Forward
Reverse
The low level is 0 to 1.0 V
Forward
The high level is 4.0 V or higher
Reverse
Forward
Reverse
Forward
Reverse
Forward
Reverse
An input “H” state is defined as UIN1 > UIN2, VIN1 > VIN2, and the potential
difference is at least 0.2 V.
When VC > VCREF: Forward rotation
When VC < VCREF: Reverse rotation
Pin Assignment
VCREF
No. 5653-3/7
LB1916
Peripheral Circuit Example
VCREF
Block Diagram
VCREF
Absolute value detector
Start/stop
Thermal
shutdown
Mode
selector
Gain
selector
0/6 dB
Hall amp
&
Matrix
&
Forward/reverse selector
Hall bias
No. 5653-4/7
LB1916
Pin Functions
Pin No.
Pin
Pin voltage
Pin function
3, 4,
20, 21
GND
• GND
23
22
19
UOUT
VOUT
WOUT
• Outputs
• Connect these pins to the motor.
17
Rf
• Ground for the output transistors
• The output current can be detected as a voltage by connecting a
resistor between the Rf pin and ground. This can then be used to
implement overcurrent protection.
18, 24,
7
NC
• No connection
16
VCC2
15
14
Z1
Z2
13
12
VC
VCREF
11
10
GC1
GC2
4.3 to 6.5 V
Equivalent circuit
• Power supply for circuits other than the output block
• The power supply provided by this pin must be well stabilized so
that noise does not occur.
• Connections for the resistors that set the front-end amplifier gain
• Z1 and Z2 are common, and have a resistance of between a few
tens of kΩ and a few hundreds of kΩ.
• The gain is about 6 dB.
• VC is the speed control pin.
When VC > VCREF: Forward rotation
VCC2
When VC < VCREF: Reverse rotation
——— ±1.0 The output voltage is controlled by the V voltage.
C
2
• VCREF determines the motor control stop voltage. Normally, this
will be VCC2/2.
0 to VCC2
• I/O gain switching input
• GC1 switches Z1 and Z2 for the front end amplifier. When GC1 is
low, Z1 is selected, and when GC1 is high, Z2 is selected. GC2
switches the amplifier in the second stage.
Continued on next page.
No. 5653-5/7
LB1916
Continued from preceding page.
Pin No.
Pin
Pin voltage
Pin function
9
8
CTRLφ
CTRL1
0 to VCC2
• Operating mode switching input
• These pins select control, acceleration, or deceleration according
to the mode switching truth table.
6
S/S
0 to VCC2
• Apply a high level to the S/S pin for start, and a low level for stop.
• The threshold is VCC2/2.
5
FC
2
1
34
33
32
31
WIN2
WIN1
VIN1
VIN2
UIN2
UIN1
1.3 to 2.2 V
30
29
VH+
VH–
2.4 V
1.4 V
Equivalent circuit
• Oscillation can be prevented by connecting a capacitor between
the FC pin and ground to lower the I/O gain frequency
characteristics.
• W phase Hall element inputs
Logic high is when WIN1 > WIN2.
• V phase Hall element inputs
Logic high is when VIN1 > VIN2.
• U phase Hall element inputs
Logic high is when UIN1 > UIN2.
• Hall element power supply
There is a potential difference of 1.0 V between VH+ and VH–.
Continued on next page.
No. 5653-6/7
LB1916
Continued from preceding page.
Pin No.
Pin
Pin voltage
Pin function
28
27
HFG2
HFG1
0 to VCC2
• Hall FG pins
• The Hall waveform is modified and used as FG pulses.
• The phase relationship between HFG1 and HFG2 is used as a
forward/reverse signal.
26
CL
0 to VCC2
• The current limiter operates when the Rf pin voltage reaches the
voltage on the CL pin.
The CL potential is determined externally.
25
VCC1
5 to 12.5 V
• Power supply for the output block
• The power supply provided to this pin must be well stabilized so
that noise does not occur.
Equivalent circuit
■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
■ Anyone purchasing any products described or contained herein for an above-mentioned use shall:
➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
■ Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of May, 1997. Specifications and information herein are subject to change
without notice.
No. 5653-7/7