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Ordering number : EN8798
Monolithic Digital IC
LB11980H
Overview
For VCR Capstan
Three-Phase Brushless Motor Driver
LB11980H is a 3-phase brushless motor driver optimal for driving the VCR capstan motors.
Features
* 3-Phase full-wave current-linear drive system. * Torque ripple correction circuit built-in.(correction factor variable) * Current limiter circuit built in. * Output stage upper/lower over-saturation prevention circuit built in. (No external capacitor required) * FG amplifier built in. * Thermal shutdown circuit built in. Absolute Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Symbol VCC max VS max Maximum output current Allowable power dissipation IO max Pd max Mounted on a specified board * Independent IC Operating temperature Storage temperature Topr Tstg Conditions Ratings 7 25 1.3 1.81 0.77 -20 to +75 -55 to +150 Unit V V A W W C C
* Mounted on a specified board: 114mmx71.1mmx1.6mm, glass epoxy board
Allowable Operating Range at Ta = 25C
Parameter Supply voltage Symbol VS VCC Hall input amplitude GSENSE input range VHALL VGSENSE Between hall inputs With respect to the control system ground Conditions Ratings 5 to 24 4.5 to 5.5 30 to 80 -0.20 to +0.20 Unit V V mVo-p V
Any and all SANYO Semiconductor 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 Semiconductor representative nearest you before using any SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor 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 Semiconductor products described or contained herein.
D2706 MS IM B8-5775 No.8798-1/11
LB11980H
Electrical Characteristics at Ta = 25C, VCC = 5V, VS = 15V
Ratings Parameter VCC supply current Output Output saturation voltage VOsat1 VOsat2 Output leakage current FR FR pin input threshold voltage FR pin input input bias current Control CTL pin input Input bias current CTL pin input motor current CTL pin control start voltage CTL pin control Gm Current limit LIM pin input current LIM pin motor current LIM current limit offset voltage LIM pin control Gm Hall amplifier Hall amplifier input offset voltage Hall amplifier input bias current Hall amplifier common-mode input voltage TRC Torque ripple correction ratio TRC For the high and low peaks in the Rf waveform when IO = 200mA (Rf = 0.5, ADJ-OPEN) Note.2 ADJ pin voltage FG Amplifier FG amplifier input offset voltage FG amplifier input bias current FG amplifier output saturation voltage FG amplifier voltage gain FG amplifier common-mode input voltage Schmitt amplifier Duty ratio Upper side output saturation voltage Lower side output saturation voltage Hysteresis width FGS output pin pull-up resistance Saturation Saturation prevention circuit lower set voltage TSD TSD operating temperature T-TSD (Design target) Note.1 180 C VO sat (DET) Voltage between each OUT and Rf with IO = 10mA, Rf = 0.5, VCTL = VLIM = 5V 0.175 0.25 0.325 V DUTY Vsatu (SH) Vsatd (SH) Vhys RFGout Under specified conditions (RF = 39k) Note 3 IO = -20A IO = 100A 32 46 4.7 49.0 4.8 0.2 60 50 51.0 % V V mV k VG (FG) VCM (FG) For open loop at f = 10kHz 41.5 0.5 44.5 47.5 4.0 dB V VOFF (FG) Ib (FG) VOsat (FG) Sink side; With internal pull-up resistance load -8 -100 0.5 0.6 +8 mV nA V VADJ 2.37 2.50 2.63 V 13 % VOFF (HALL) Ib (HALL) VCM (HALL) 1.3 1.0 3.0 3.3 A V -6 +6 mV Ilim Imlim Voff (LIM) Gm (lim) VLIM = 3V VLIM = 0V Rf = 0.5, VCTL = 5V, IO 10mA Hall input logic fixed (U, V, W = H, H, L) Rf = 0.5, VCTL = 5V Hall input logic fixed (U, V, W = H, H, L) 1.0 0.59 1.25 0.71 1.5 3 5 1.5 0.83 A mA V A/V Ib (CTL) Imctl VCTL (ST) Gm (CTL) VCTL = 5V VCTL = 0V Rf = 0.5, VLIM = 5V, IO 10mA Hall input logic fixed (U, V, W = H, H, L) Rf = 0.5, IO = 200mA Hall input logic fixed (U, V, W = H, H, L) 2.25 0.86 2.50 1.06 1.5 3 5 2.75 1.26 A mA V A/V VFSR Ib (FSR) VFR = 3V 1.0 100 1.25 150 2 200 V A IOleak IO = 500mA, Rf = 0.5, sink+source VCTL = VLIM = 5V (With saturation prevention) IO = 1.0A, Rf = 0.5, sink+source VCTL = VLIM = 5V (With saturation prevention) 2.1 2.6 2.6 3.5 1.0 V V mA Symbol ICC Conditions RL = , VCTL = 0, VLIM = 0V (Quiescent) min typ 12 max 18 Unit mA
Note 1. No measurements are made on the parameters with Note (Design target).
No.8798-2/11
LB11980H
Note 2. The torque ripple compensation ratio is determined as follows from the Rf voltage waveform.
Vp
Vb I II III IV V VI
Each hall logic setting GND level 2* (Vp - Vb) Correnction ratio = Vp + Vb 100* (%)
Note 3. Apply the sine wave of 1kHz, 20mVP-P under conditions with a sample circuit installed externally as shown above.
Package Dimensions
unit : mm (typ) 3233B
15.2 (6.2) 28 15
(4.9)
10.5
7.9
1 0.8 (0.8) 2.0 0.3
14 0.25
2.7
0.1
(2.25)
2.45max
SANYO : HSOP28H(375mil)
2.0
Pd max - Ta
1.81
Allowable power dissipation, Pd max - W
1.8 1.6 1.4 1.2 1.0 0.77 0.8 0.6 0.4 0.2 0 -20 0 20 25
Mounted on a specified board (114mmx71.1mmx1.6mm glass epoxy)
Independent IC
1.09
0.46
40
60
75 80
100 ILB01492
Ambient temperature, Ta - C
0.65
HEAT SPREADER
No.8798-3/11
LB11980H
Pin Assignment
WOUT NC NC RF GSENSE FR GND
1 2 3 4 5 6 7
28 27 26 25 24 23 22
VOUT UOUT NC NC RF ADJ VS
FRAME GND
LB11980H
8 9 10 11 12 13 14 21 20 19 18 17 16 15
FRAME GND
FGINFGIN+ FGOUT FGS CTL LIM FC
VCC HWHW+ HVHV+ HUHU+
Top view
No.8798-4/11
LB11980H
Block Diagram
12
FC
Output stage VS
UIN+ UINlogarithmic compression block U Hall input combination block U U-OUT
Combined output
( linear matrix)
Logarithmic inverse transformation V V-OUT
VIN+ V VIN-
WIN+ W WIN-
W
W-OUT Rf (PWR)
Upper saturation prevention control gm Rf (SENSE)
gm
Drive distribution circuit & lower saturation prevention control
Differential distribution and torque ripple correction block Control amplifier CTL Feedback amplifier
ADJ
Approx.1/2VCC
LIMREF
GSENSE LIM
FR
Forward/ reverse selection TSD
FG amplifier
FGIN+ FGIN-
GND
FGOUT
FGS VCC Reference voltage Bandgap 1.25V
No.8798-5/11
LB11980H
Truth Table and 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 2.75V or more. "L" represents a voltage of 2.25V or less. (At VCC = 5V) Note: "H" under the Hall Input columns represents a state in which "+" has a potential which is higher by 0.01V or more than that of the "-" phase inputs. Conversely "L" represents a state in which "+" has a potential which is lower by 0.01V or more than that of the "-" phase inputs. Note: Since a 180 energized system is used as a drive system, other phases than the sink and source are not OFF. [Control Function & Current Limiter Function]
Control characteristics VLIM = 5V 1OUT 1OUT
Current limiter characteristics VCTL = 5V
Gm = 1.06A/Vtyp 2.50Vtyp VCTL 0 1 2 3 4 5 0 1 1.25Vtyp 2 3
Slope = 0.71A/Vtyp
VLIM 4
No.8798-6/11
LB11980H
Pin Functions
Pin name FR GND FGIN (-) FGIN (+) FG-OUT CTL LIM Pin no 6 7 8 9 10 12 13 Forward/reverse select pin. This pin voltage determines forward/reverse. (Vth = 1.25V TYP at VCC = 5V) GND for others than the output transistor. Minimum potential of output transistor is at Rf pin. Input pin for the FG amplifier to be used with inverted input. A feedback resistor is connected between this pin and FG OUT. Non-inverted input pin for the FG amplifier to be used as differential input. No bias is applied internally. FG amplifier output pin. Resistive load provided internally. Speed control pin. Control is performed by means of constant current drive which is applied by current feedback from Rf. Gm = 1.06A/VTYP at Rf = 0.5 Current limiter function control pin. This pin voltage is capable of varying the output current linearly. Slope = 0.71A/VTYP at Rf = 0.5 FC UIN+, UINVIN+, VINWIN+, WINVCC VS ADJ 14 15, 16 17, 18 19, 20 21 22 23 Speed control loop's frequency characteristics correction pin. U-phase Hall device input pin; logic "H" presents IN+>INV-phase Hall device input pin; logic "H" presents IN+>INW-phase Hall device input pin; logic "H" presents IN+>INPower supply pin for supplying power to all circuits expect output section in IC; this voltage must be stabilized so as to eliminate ripple and noise. Power supply pin for supplying power to output section in IC. Pin to be used to adjust the torque ripple correction factor externally. When adjusting the correction factor, apply voltage externally to the ADJ pin through a low impedance. Increasing the applied voltage decreases the correction factor; lowering the applied voltage increases the correction factor. The rate of change, when left open, ranges approximately from 0 to 2 times. (Approximately VCC/2 is set internally and the input impedance is approximately 5k.) Rf (PWR) Rf (SNS) 24 4 Output current detection pins. Current feedback is provided to the control blocks by connecting Rf between the pins and GND. The operation of the lower over-saturation prevention circuit and torque ripple correction circuit depends on the pin voltage. In particular, since the oversaturation prevention level is set by the pin voltage, decreasing the Rf value extermely may cause the lower over-saturation prevention to work less efficiently in the large current region. The PWR pin and SENSE pin must be connected. FGS UOUT VOUT WOUT GSENSE 11 27 28 1 5 FG Schmidt amp output pin, that is pulled up with 4.7k. U-phase output pin. V-phase output pin. W-phase output pin. GND sensing pin. By connecting this pin to GND in the vicinity of the Rf resistor side of the Rf included motor GND wiring, the influence that the GND common impedance exerts on Rf can be excluded. (Must not be left open.) (Built-in spark killer diode) Functions
No.8798-7/11
LB11980H
Each Input/Output Equivalent Circuit
Pin No. 15 16 17 18 19 20 Pin name UIN (+) UIN (-) VIN (+) VIN (-) WIN (+) WIN (-) Input/Output equivalent circuit
Each (+) input 200 100A 200
Each (-) input
27 28 1 22 24 4
UOUT VOUT WOUT VS Rf (POWER) Rf (SENSE)
VS
VCC 150A Lower oversaturation prevention circuit block VCC 10A 200 Rf (SENSE) VCC 5k VCC 200A max LIM 200 VCC VCC 20A VCC 10k 5k
Each OUT
200 30k Rf (POWER)
12 13 CTL LIM
VCC
CTL 200 100A
200
6 23
FR ADJ
VCC
200A
FR
200 20k 1.25V
ADJ
6k 10k
500
6k 10k Continued on next page. No.8798-8/11
10k
LB11980H
Continued from preceding page.
Pin No. 8 9 Pin name FGIN (-) FGIN (+) Input/output equivalent circuit
VCC
5A
FGIN (-) 300
FGIN (+)
10 14
FGOUT FC
VCC
VCC
VCC
10k
2k
FGOUT
300
10k FC VCC FGS 300
11
FGS
VCC
VCC
4.7k
10k
No.8798-9/11
LB11980H
Sample Application Circuit
2 NC 3 NC 0.5 4 RF 5 GSENSE 6 FR 7 GND
UOUT 27 NC 26 NC 25 RF 24 ADJ 23 VS 22
0.1F 0.1F 15V 5V Hall element
1 WOUT
VOUT 28
FRAME GND VCC 1F 39k MR 8 FGIN9 FGIN+ 10 FGOUT FGS pulse output Torque instruction voltage supply pin 12 CTL Current limiter setting voltage supply pin 13 LIM 0.1F 14 FC 11 FGS
FRAME GND
VCC 21 HW- 20 HW+ 19 HV- 18 HV+ 17 HU- 16 HU+ 15 HSOP28H Top view
Note) The constant shown in this example is only for reference and does not guarantee the characteristics. Connect a capacitor between power supply and GND and between Hall inputs as required.
2.5V
0.1F
No.8798-10/11
LB11980H
Specifications of any and all SANYO Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 December, 2006. Specifications and information herein are subject to change without notice.
PS No.8798-11/11

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