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Ordering number: EN 5131
Monolithic Digital IC
LB1889, 1889M, 1889D
3-phase Brushless Motor Driver for VTR Capstans
Functions
Package Dimensions
unit : mm
. 3-phase full-wave current linear drive system . Torque ripple correction circuit built in (variable . compensation ratio) built in/with control characteristic Current limiting circuit . gain switch upper/lower oversaturation prevention circuit Output stage in (no . builtamplifierexternalincapacitor required) FG built . Thermal shutdown circuit built in
3206-QFP34H
[LB1889]
SANYO : QFP34H
3147A-DIP28HS
[LB1889D]
3129-MFP36S
[LB1889M]
SANYO : MFP36S SANYO : DIP28HS (500mil)
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
92595HA (II) No.5131-1/13
LB1889, 1889M, 1889D
Specifications
Absolute Maximum Ratings at Ta = 25 C
Parameter Maximum supply voltage Maximum output current Symbol VCC max VS max IO max Arbitrarily large heat sink Arbitrarily large heat sink Allowable power dissipation Pd max Independent IC Independent IC Independent IC Operating temperature Storage temperature Topr Tstg LB1889 LB1889D Conditions Ratings 7 24 1.3 12.5 15.0 0.77 0.95 3.0 -20 to +75 -55 to +150 Unit V V A W W W W W C C
LB1889 LB1889M LB1889D
Allowable Operating Ranges at Ta = 25 C
Parameter Supply voltage Hall input amplitude GSENSE input range Symbol VS VCC VHALL VGSENSE Between Hall inputs Relative to control system GND Conditions Ratings 5 to 22 4.5 to 5.5 30 to 80 -0.20 to +0.20 Unit V V mV0-P V
Electrical Characteristics at Ta = 25 C, VCC = 5 V, VS = 15 V
Parameter VCC supply current [Output] Output saturation voltage VOsat2 Output leakage current [FR] FR pin input threshold voltage FR pin input bias current [Control] CTLREF pin voltage CTLREF pin input range CTL pin input bias current CTL pin control start voltage CTL pin control switch voltage CTL pin control Gm1 CTL pin control Gm2 [Current Limit] LIM current limit offset voltage LIM pin input bias current LIM pin current limit level [Hall Amplifier] Hall amplifier input offset voltage Hall amplifier input bias current Hall amplifier common-mode input voltage Voff (LIM) Ib (LIM) I lim With Rf = 0.5 , VCTL = 5 V, IO ^ 10 mA, Hall input logic fixed, (u, v, w = H, H, L) With VCTL = 5 V, CTLREF : Open, VLIM = 0 V With Rf = 0.5 , VCTL = 5 V, VLIM = 2.06 V, Hall input logic fixed, (u, v, w = H, H, L) 140 -2.5 830 900 970 200 260 mV A mA Ioleak VFSR Ib (FSR) VCREF VCREFIN Ib (CTL) VCTL (ST) VCTL (ST2) Gm1 (CTL) Gm2 (CTL) 2.25 -5.0 2.37 1.70 VCTL = 5 V, CTLREF : Open With Rf = 0.5 , VLIM = 5 V, IO ^ 10 mA, Hall input logic fixed, (u, v, w = H, H, L) Rf = 0.5 , VLIM = 5 V With Rf = 0.5 , IO = 200 mA, Hall input logic fixed, (u, v, w = H, H, L) With Rf = 0.5 , VCTL = 200 mV, Hall input logic fixed, (u, v, w = H, H, L) 2.20 3.00 0.52 1.20 2.50 Symbol ICC VOsat1 Conditions RL = (when stopped), VCTL = 0 V, VLIM = 0 V IO = 500 mA, Rf = 0.5 , Sink + Source VCTL = VLIM = 5 V (with saturation prevention) IO = 1.0 A, Rf = 0.5 , Sink + Source VCTL = VLIM = 5 V (with saturation prevention) min typ 12 2.1 2.6 max 18 2.6 3.5 1.0 2.75 Unit mA V V mA V A V V A V V A/V A/V
2.50
2.63 3.50 8.0 2.50 3.30 0.78 1.80
2.35 3.15 0.65 1.50
Voff (HALL) Ib (HALL) Vcm (HALL)
-6 1.0 1.3
+6 3.0 3.3
mV A V
Continued on next page. No.5131 - 2/13
LB1889, 1889M, 1889D
Continued from preceding page.
Parameter [TRC] Torque ripple correction factor ADJ pin voltage [FG Amplifier] FG amplifier input offset voltage FG amplifier input bias current FG amplifier output saturation voltage FG amplifier common-mode input voltage [Saturation] Saturation prevention circuit lower set voltage [TSD] TSD operation temperature TSD temperature hysteresis width TRC Vadj Voff (FG) Ib (FG) VOsat (FG) VCM (FG) Voltage between each OUT and Rf at IO = 10 mA, Rf = 0.5 , VCTL = VLIM = 5 V (Design target) (Design target) Note 1 Note 1 At internal pull-up resistor load on sink side 0.5 At bottom and peak in Rf waveform at IO = 200 mA (RF = 0.5 , ADJ-OPEN) Note 2 2.37 -8 -100 9 2.50 2.63 +8 % V mV nA V V Symbol Conditions min typ max Unit
0.5 4.0
VOsat (DET) T-TSD TSD
0.175
0.25
0.325
V
180 20
C C
Note 1: No measurements are performed for any values listed in the conditions column as design targets. Note 2: The torque ripple correction factor is calculated using the Rf voltage waveform as follows.
Hall input logic settings GND level
Correction factor =
2 x (Vp - Vb) Vp + Vb
x 100 (%)
Truth Table & Control Function
Source Sink 1 2 3 4 5 6 VW WV UW WU UV VU WV VW WU UW VU UV Hall input U H H H L L L V H L L L H H W L L H H H L FR H L H L H L H L H L H L
Note: ``H'' in the FR column represents a voltage of 2.75 V or more; ``L'' represents a voltage of 2.25 V or less. (At VCC = 5 V) Note: ``H'' in the Hall input columns represents a state in which ``+'' has a potential which is higher by 0.01 V or more than that of the ``-'' phase inputs. Conversely, ``L'' represents a state in which ``+'' has a potential which is lower by 0.01 V or more than that of the ``-'' phase input.
Note: Since 180 energized system is used as the drive system, other phases than the sink and source phases are turned off.
No.5131 - 3/13
LB1889, 1889M, 1889D
Control Function & Current Limit Function
Control characteristics Current limit characteristics
Slope = 0.50 A/V typ
Pin Functions
The pin number in ( ) is for MFP, that in < > is for DIP, and other than these is for QFP.
Pin name FR GND FGin (-) FGin (+) FG-OUT CTL CTLREF Pin No. 1 (33) <26> 2 (34) <27> 5 (3) <28> 6 (4) <1> 8 (5) <3> 9 (6) <4> 10 (7) <5> Function Forward/reverse select pin. The pin voltage selects forward/reverse. (Vth = 2.5 V typ at VCC = 5 V) GND for other than output transistor. Minimum potential of output transistor is at Rf pin. Input pin when FG amplifier is used with inverted input. Feedback resistor is connected between this pin and FG-OUT. Noninverting input pin when FG amplifier is used with differential input. Internal bias is not applied. FG amplifier output pin. Resistive load provided internally. Speed control pin. Control is exercised by constant-current drive with current feedback applied from Rf. Gm = 0.65 A/V & 1.50 A/V typ at Rf = 0.5 Control reference voltage pin. The voltage is set internally to approx. VCC/2 but this can be varied by applying voltage through a low impedance (input impedance = approx. 2.5 k). Current limiting function control pin. The output current is varied linearly by this pin voltage; slope = 0.5 A/V typ at Rf = 0.5 . Speed control loop frequency characteristic correction pin U-phase Hall device input pin; logic ``H'' represents IN+ > IN-. V-phase Hall device input pin; logic ``H'' represents IN+ > IN-. W-phase Hall device input pin; logic ``H'' represents IN+ > IN-. Power supply pin for supplying power to all circuits except output section in IC; this voltage must be stabilized so as to eliminate ripple and noise. Output selection power supply pin Pin for external adjustment of torque ripple correction factor. When this factor is to be adjusted, a voltage is externally applied to the ADJ pin through a low impedance. If the voltage applied is increased, the factor drops; conversely, if it is reduced, the factor rises. The factor varies between 0 and 2 times that of the open state. (The voltage is set inside to approx. VCC/2 internally, and the input impedance is approx. 5 k.) Output current detection pin. Current feedback is applied to the control section by connecting Rf between this pin and GND. The lower oversaturation prevention circuit and torque ripple correction circuit are activated in accordance with this pin voltage. Since the oversaturation prevention level is set with this voltage, the lower oversaturation prevention effect may deteriorate in the high current range if the Rf value is reduced to an extremely low level. The PWR and SENSE pins must always be connected. U-phase output pin V-phase output pin W-phase output pin (Built-in spark killer diode)
LIM FC Uin , Uin Vin+, Vin- Win+, Win- VCC VS ADJ
+ -
11 (8) <6> 12 (9) <7> 13, 14 (10, 11) <8, 9> 15, 16 (12, 13) <10, 11> 17, 18 (14, 15) <12, 13> 19 (16) <14> 22 (21) <15> 23 (22) <16>
Rf (PWR) Rf (SNS)
24 (23) <17> 33 (31) <24>
Uout Vout Wout GSENSE
27 (26) <21> 29 (27) <22> 31 (28) <23> 34 (32) <25>
GND sensing pin. By connecting this pin to the neighboring GND on the Rf resistor side of the motor GND wire which contains Rf, the effect that GND common impedance exerts on Rf can be eliminated. (This pin must not be left open.)
No.5131 - 4/13
LB1889, 1889M, 1889D
Block Diagram
Hall amplifier Output stage
Combined output logarithmic compression unit
Hall input combination unit (linear matrix)
Logarithmic inverse transformation & differential distribution Upper saturation prevention control
Control amplifier 1
Differential distribution & torque ripple correction unit
Drive distribution circuit & lower saturation prevention control
Feedback amplifier
Control amplifier 2
Forward/ reverse selection
FG amplifier
Reference voltage
No.5131 - 5/13
LB1889, 1889M, 1889D
Pin Assignment [LB1889]
Top view
Note: FRAME must be connected to GND for GND potential stablization.
Pd -- Ta
Allowable power dissipation, Pd -- W
Ambient temperature, Ta -- C
No.5131 - 6/13
LB1889, 1889M, 1889D
Pin Assignment [LB1889M]
(PACKAGE : MFP-36S-LF)
Top view
Note: Although there is no internal connection between the FRAME pin and GND, FRAME must be connected to GND externally for GND potential stabilization.
Pd -- Ta
Allowalle power dissipation, Pd -- W
Ambient temperature, Ta -- C
No.5131 - 7/13
LB1889, 1889M, 1889D
Pin Assignment [LB1889D]
DIP-28HS bent opposite
(Resin side)
Top view
Pd -- Ta
Allowable power dissipation, Pd -- W
Ambient temperature, Ta -- C
No.5131 - 8/13
Forward/reverse instructing voltage supply pin Power GND
GaAs is recommended as the Hall device.
Hall output
Hall output ADJ voltage supply pin Vs
Sample Application Circuit [LB1889]
Hall bias resistor R is selected to match the sensor output.
Hall output
LB1889, 1889M, 1889D
Vcc
Hall input
FG output pin
Current limit setting voltage supply pin CTL REF voltage supply pin Torque instructing voltage supply pin
No.5131 - 9/13
Note: The constants provided in this sample application circuit are provided by way of example and are not intended to guarantee the characteristics.
Forward/reverse instructing voltage supply pin Power GND ADJ voltage supply pin Vs
GaAs is recommended as the Hall device.
Sample Application Circuit [LB1889M]
Hall output
Hall output
LB1889, 1889M, 1889D
Hall output Hall input Vcc Current limit setting voltage supply pin CTL REF voltage supply pin Torque instructing voltage supply pin FG output pin
Hall bias resistor R is selected to match the sensor output.
No.5131 - 10/13
Note: The constants provided in this sample application circuit are provided by way of example and are not intended to guarantee the characteristics.
Forward/reverse instructing voltage supply pin Power GND ADJ voltage supply pin Vs
GaAs is recommended as the Hall device.
Sample Application Circuit [LB1889D]
Hall output
Hall output
(Resign side)
LB1889, 1889M, 1889D
Hall output Hall input
Vcc Current limit setting voltage supply pin CTL REF voltage supply pin Torque instructing voltage supply pin FG output pin
Hall bias resistor R is selected to match the sensor output.
No.5131 - 11/13
Note: The constants provided in this sample application circuit are provided by way of example and are not intended to guarantee the characteristics.
LB1889, 1889M, 1889D
Pin Input/Output Equivalent Circuit
Pin name Uin (+) Uin (-) Vin (+) Vin (-) Win (+) Win (-) Each (+) input Input/Output Equivalent Circuit Each (-) input
U-OUT V-OUT W-OUT VS Rf (POWER) Rf (SENSE)
Each output
Lower oversaturation prevention circuit input block
CTL LIM CTLREF
FR ADJ
Continued on next page.
No.5131 - 12/13
LB1889, 1889M, 1889D
Continued from preceding page.
Pin name FGin (-) FGin (+) Input/Output Equivalent Circuit
FGOUT FC
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: 1 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: 2 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 September, 1995. Specifications and information herein are subject to change without notice.
No.5131 - 13/13

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