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Ordering number: ENN5232A
Monolithic Digital IC
LB1951V
Three-phase Brushless Motor Driver for Portable VCR Capstan Use
Functions
* 3-phase full-wave current linear drive system (120 voltage linear drive system). * Torque ripple correction circuit built in (overlap correction). * Speed control system using motor supply voltage control. * FG comparator built in. * Thermal shutdown circuit built in.
Package Dimensions
unit : mm
3175A-SSOP24
[LB1951V]
1.0 5.6 0.15 0.43 0.1 1.6max 24 13
1 8.0
12
0.22
0.65
SANYO : SSOP24
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Symbol VCC1 max Maximum supply voltage VCC2 max Vs max Applied output voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature VO max IO max Pd max Topr Tstg Independent IC < VCC 2 Conditions Ratings 10 11 11 VS +2 1.0 440 -20 to +75 -55 to +150 Unit V V V V A mW C C
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO 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 SANYO products described or contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
90699RM (II)/N3095HA (II) No. 5232-1/9
0.5
7.6
LB1951V Allowable Operating Ranges at Ta = 25C
Parameter Symbol VCC 1 Supply voltage VCC 2 Vs Hall input amplitude VHALL Between Hall inputs Conditions Ratings 2.7 to 6.0 3.5 to 9.0 to V CC 2 20 to 80 Unit V V V mV0-p
Electrical Characteristics at Ta = 25C, VCC1 = 3 V, VCC2 = 4.75 V, VS = 1.5 V
Parameter [Supply Current] Supply current 1 Supply current 2 Static current 1 Static current 2 VS static current [VX1] Upper side residual voltage Lower side residual voltage [VX2] Upper side residual voltage Lower side residual voltage Output side saturation voltage Overlap [Hall Amplifier] Hall amplifier input offset voltage Hall amplifier common-mode input range Hall amplifier I/O voltage gain [Standby Pin] Stand-by pin high-level voltage Standby pin low-level voltage Standby pin input current Standby leakage current [FRC Pin] FRC pin high-level voltage FRC pin low-level voltage FRC pin input current FRC pin leakage current [VH] Hall supply voltage VH (-) pin voltage [FG Comparator] Input offset voltage Input bias current Input bias current offset Common-mode input range Output high-level voltage Output low-level voltage Voltage gain Output current (Sink) [TSD] TSD operating temperature TSD temperature hysteresis width T-TSD TSD (Design target value) (Design target value) Note 2 Note 2 180 20 C C VHALL VH(-) VFGOFF I bFG I bFG VFGCM VFGOH VFGOL VGFG IFGOs At internal pull-up At internal pull-up (Design target) Note 2 With output pin ``L'' VFGIN+ =VFGIN- = 1.5 V + =V - = 1.5 V V
FGIN FGIN
Symbol
Conditions
min
Ratings typ max 3.0 7.0 1.5 40 5.0 10.0 3.0 100 100 0.29 0.26 0.40 0.40 1.40 84 +5 2.4 27.5 30.5
Unit
ICC 1 ICC 2 I CCQ1 I CCQ2 I SQ VXH1 VXL1 VXH2 VXL2 Vosat O.L VHOFF VHCM VGVH VSTH VSTL I STIN ISTLK VFRCH VFRCL IFRCIN I FRCLK
Iout = 100 mA Iout = 100 mA VSTBY = 0 V VSTBY = 0 V VSTBY = 0 V Iout = 0.2 A Iout = 0.2 A Iout = 0.5 A Iout = 0.5 A Iout = 0.8 A, Sink + Source RL =39 x 3, R angle = 20 k Note 2 R angle = 20 k R angle = 20 k Note 1 70 -5 0.95 24.5 2.5 0.15 0.16
mA mA mA A A V V V V V % mV V dB V
0.22 0.21 0.25 0.25 77
0.4 VSTBY = 3 V VSTBY = 0 V 2.5 0.4 VFRC = 3 V VFRC = 0 V I H = 5 mA, VH (+)-VH (-) I H = 5 mA 0.85 0.81 -3 -100 1.2 2.8 0.2 100 5 20 30 -30 1.05 0.95 +3 500 +100 2.5 25 40 -30
V A A V V A A V V mV nA nA V V V dB mA
0.95 0.88
Note 1: Overlapping specifications are assumed to be test specifications. Note 2: For parameters which have an entry of (Design target value) in the ``Conditions'' column, no measurements are made.
No. 5232-2/9
LB1951V
Pd max
0.5
- Ta
Allowable Power dissipation, Pd max - W
0.44 0.4
0.3
0.264W
0.2
0.1
0 -20
0
20
40
60
80
100
Ambient temperature, Ta - C
Pin Assignment
VCC1 VCC2 Vs N.C. UOUT Rf VOUT Rf WOUT
1 2 3 4 5 6
24 FGOUT 23 FGIN(-) 22 FGIN(+) 21 WIN2 20 WIN1 19 VIN2 18 VIN1 17 UIN2 16 UIN1 15 STBY 14 FRC 13 GND
LB1951V
7 8 9
VH+ 10 VH- 11 ANGLE 12
Top view
A12467
No. 5232-3/9
LB1951V Pin Functions
Pin No. 1 Pin name VCC1 I/O equivalent circuit Function Power supply pin for supplying power to all circuits except amplitude control block in output block in IC. Power supply pin for supplying power to all circuits of the amplitude control block and the output control block in IC. Power supply pin for motor drive. Apply a voltage of VCC2 or lower to this pin.
2 3 5 7 9 VCC2 VS UOUT VOUT WOUT
2
VCC2
3 5 7 9
VS UOUT VOUT WOUT
U-phase output pin V-phase output pin W-phase output pin
(Spark killer diode built in)
6, 8
Rf
6 8
A12468
Pins for grounding output power transistor.
RF
10 11
VH+ VH-
1 VCC1
Pins for supplying the Hall element bias voltage. Voltage of 0.95 V (typ.) is generated between VH+ and VH- . (when IH = 5 mA)
20k
Approx. 1.9V
20k
10 VH+
Approx. 0.9V
11 VH-
A12469
12
ANGLE
1 VCC1
Pins for controlling the Hall input-output gain. The gain is controlled by a resistor between this pin and GND.
4k
4k
16 17 18 19 20 21
UIN1 UIN2 VIN1 VIN2 W IN1 W IN2
1.2VTYP
VCC1
200 17 200
16 18 20
400 400
19 21
ANGLE 12
A12470
U-phase Hall element input pin; Logic ``H'' represents IN + > IN-. V-phase Hall element input pin; Logic ``H'' represents IN + > IN- . W-phase Hall element input pin; Logic ``H'' represents IN + > IN-.
13
GND
200
Pin for grounding other than output transistors. Minimum potential of output transistors is equal to the level at Rf pin.
VCC1 VCC1 VCC1 V1 STBY CC 15
100K
14
FRC
Forward/reverse select pin. The voltage on this pin is used for forward/reverse select. (with Hysteresis)
100K
15
STBY
50K 14 FRC
Pin for selecting the bias supply for all circuits except the FG comparator. ``L'' level on this pin cuts the bias supply.
A12471
100K
Continued on next page.
No. 5232-4/9
LB1951V
Continued from preceding page.
Pin No. 22 Pin name FGIN+
15K 20K
I/O equivalent circuit
VCC1
Function Noninverting input pin for the FG comparator. No bias is applied internally. Inverting input pin for the FG comparator. No bias is applied internally. FG comparator output pin. A resistive load of 20 k is provided internally.
A12472
23
FGIN-
FGIN-- 23 200
FGIN+ 22 200
24 FGOUT
24
FGOUT
Truth Table
Source Sink 1 VW W V U W WU UV VU W V VW WU U W VU UV Hall input U H V H W L H L H L L H L H L H H L L L H H L L H H H L L H L H L FRC Note: ``H'' in the FRC column represents a voltage of 2.5 V or more; ``L'' represents a voltage of 0.4 V or less. (At VCC1 =3 V) Note: ``H'' in the Hall input columns represents a state in which ``+'' has a potential which is higher by 0.02 V or more than that of the ``-'' phase inputs. Conversely, ``L'' represents a state in which ``+'' has a potential which is lower by 0.02 V or more than that of the ``-'' phase input.
2
3
4
5
6
50K
No. 5232-5/9
FRC 14 2 VCC2 3I 0 current 3I distribution R5 B U-OUT - R5 R5 B - R5 R5 + B - 6 I=O.LxVO1/(1.5xR5) TSD 1.2 V reference voltage and bias start-up circuit 8 1 RF RF VCC1 15 STBY 9 W-OUT + 7 V-OUT 5 + R5 3 VS
Forward/ reverse selection
Uin1 16
+
U
U--V V--W W--U
Block Diagram
Uin2 17
-
Vin1 18
+
V
Vin2 19
-
Drive signal generating block
Synthesized signal level shift
Win1 20
+
Hall input synthesis block (Matrix)
W
Win2 21
-
Hall amplifier
12
ANGLE Upper/lower amplitude control + - O.LxVO1 VO2 R4 Vx+Vf VO3 R6 Vs--Vx--Vf
3xR1
LB1951V
VCC2
+
Bias supply for each block Hall supply voltage output circuit VCC1 + - + - R6 FG amplifier + VS/2 +VF VX+VF 22 23 FGIN+ FGINVo3= 1 1 V -(V --V )+ V =V -V -V 2s x f2 ssxf
A12473
-
10 VH+ 11 VH-
R2 1.5xR5 Vx
R1
Vx
R2
R3
24 FGOUT -
GND 13
1 1 1 Vo1= Vs+( Vs-Vx)= Vs-Vx 4 2 4
O.L=
R3 R3+R4
No. 5232-6/9
* For the blocks drawn with thick lines, power is supplied from VCC2.
LB1951V Overlap Creation and Calculation
VS
VS Upper residual voltage VXH Upper clamp potential VS-VXH V O.Lx( S -VXH) 2 VS -VXH 2
VS-VXH V A Electrical angle 180 B
Absolute voltage Calculated midpoint VN
C
D
V VXL Lower clamp potential VXL Lower residual voltage VXL Time
A12474
i) Overlap creation Because the voltage generated in the amplitude control block is: 2 x O.L. x (1/2 VS -VX ) for each side, (using the midpoint as the reference point), the point at which the two waveforms cross each other is O.L. (1/2 VS -VX ) from the midpoint. Because that waveform is clamped at (1/2 VS -VX ) with the midpoint as the reference point, the overlap equals A/B x 100, which equals O.L. x 100 (%). ii) Overlap calculation (1) Upper overlap amount (VS -VXH -V XL ) (VS -V XH +VXL ) +VXL = 2 2 Because A = V -VN and B =VS -VXH - VN, the upper overlap amount is calculated as follows: Calculated midpoint VN = Overlap amount = A V -{(VS -V XH +VXL )/2} = B VS -VXH - {(VS -VXH +VXL )/2} = 2V -(VS -VXH )-VXL (VS -VXH )-VXL x 100 x 100 (%)
(2) Lower overlap amount Because C = VN - V and D = VN - VXL , the lower overlap amount is calculated as follows: Overlap amount = C {( VS -V XH +VXL )/2} - V = D {(VS -VXH +VXL )/2} - V XL = (VS -V XH )+VXL -2V (VS -VXH )-VXL x 100 x 100 (%)
No. 5232-7/9
MR Hall input
FGOUT Standby control pin Forward/reverse instructing voltage supply pin 13
Sample Application Circuit
24
Hall output
L
Hall output
LB1951V
L
L
R
1
TOP VIEW 12
LB1951V
Hall output Angle resistance 200k
R
0.15Fx3 0.22F
VS (Motor speed control power supply)
Hall bias resistor R is selected to match the sensor output.
0.22F
VCC2 VCC1
A12475
No. 5232-8/9
Note: It should be noted that the constants specified are for example only, with no guarantee for characteristics implied.
LB1951V
Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO products(including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Electric Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. 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 September, 1999. Specifications and information herein are subject to change without notice.
PS No. 5232-9/9

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