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Ordering number :ENN6209B
Monolithic Digital IC
LB11985H
VCR Capstan Motor Brushless Motor Driver
Functions
* Three-phase current linear drive with switching between full-wave and half-wave operations * Torque ripple correction circuit * Current limiter circuit * Upper and lower sides output stage saturation prevention circuits * Short brake circuit * FG amplifier * Thermal shutdown circuit
Package Dimensions
unit: mm 3233-HSOP28H
[LB11985H]
15.3 0.65 0.25 0.85 1.3 0.8 0.3 6.2 2.7
28
15
1
14
0.1
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Maximum output current Maximum output voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCCmax VSmax IOmax VOmax Pdmax Topr Tstg Independent IC
2.5max
2.25
SANYO: HSOP28H
Conditions
Ratings 6 15.5 1.5 30 0.8 2.0 -20 to +75 -55 to +150
Unit V V A V W W C C
76.1 x 114.3 x 1.6 mm3: With glass epoxy
Allowable Operating Ranges at Ta = 25C
Parameter Supply voltage Hall input amplitude GSENSE input range Symbol VS VCC VHALL VGSENSE Between Hall inputs With respect to the control system ground Conditions Ratings 8 to 15 4.5 to 5.5 20 to 100 -0.20 to +0.20 Unit V mV 0-P V
Note : Forward/reverse switching is not possible in half-wave operation mode.
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
12800RM (OT) No. 6209-1/9
10.5
7.9
4.9
LB11985H Electrical Characteristics at Ta = 25C, VCC = 5 V, VS = 15 V
Parameter VCC current drain [Output] VOsat1 Output saturation voltage VOsat2 Output leakage current [FR] FR pin input Threshold voltage FR pin input Input bias current [BR] BR pin input Threshold voltage BR pin input Input bias current [Control] CTLREF pin voltage CTLREF pin input range CTL pin input bias current CTL pin control start voltage CTL pin control Gm [Current Limiter] LIM current limit offset voltage LIM pin input bias current LIM pin current limit level [Hall Amplifier] Input offset voltage Input bias current Common-mode input voltage Torque ripple correction ratio [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 side set voltage [Schmitt Amplifier] Duty Upper side output saturation voltage Lower side output saturation voltage Hysteresis TSD operating temperature TSD hysteresis DUTY Vsatu (SH) Vsatd (SH) Vhys T-TSD T-TSD Design target values *2 Design target values *2 Design target values *2 45 180 15 60 mVp-p, 1 kHz input *1 49 4.8 0.2 50 51 % V V mV C C VOsat (DET) Io = 10 mA, Rf = 0.5 , VCTL = VLIM = 5 V The voltages between the OUT-Rf pairs at full wave. 0.13 0.25 0.42 V Voff (FG) Ib (FG) VOsat (FG) VCM (FG) For the sink side, at the internal pull-up resistor 1.0 -8 -100 0.4 0.55 4.0 +8 mV nA V V Voff (HALL) Ib (HALL) Vcm (HALL) TRC At the bottom and peak that occur in the Rf waveform at 200 mA (Rf = 0.5 ) 1.3 14.5 -6 1.0 +6 3.0 3.3 mV A V % Voff (LIM) Ib (LIM) Gm (LIM) Rf = 0.5 , VCTL = 5 V, Io 40 mA With the Hall input logic states fixed (U, V, W = high, high, low) VCTL = 5 V,VREF: OPEN, VLIM = 0 V Rf = 0.5 , VCTL = 5 V With the Hall input logic states fixed (U, V, W = high, high, low) 80 -2 0.37 200 -1 0.47 0.57 320 mV A mA VCREF VCREF IN Ib (CTL) VCTL (ST) Gm (CTL) VCTL = 5 V, with CTLREF open Rf = 0.5 , VLIM = 5 V, Io 40 mA With the Hall input logic states fixed (U, V, W = high, high, low) Rf = 0.5 , Io = 200 mA With the Hall input logic states fixed (U, V, W = high, high, low) 2.0 1.8 2.2 2.25 2.0 1 2.15 2.3 4 5 2.4 2.7 V V A V V VBRTH Ib (BR) VBR = 5 V 1 100 4 150 V A VFR Ib (FR) VFR = 5 V 1 100 4 150 V A IOleak 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) 2.2 2.8 2.7 3.7 1.0 V V mA Symbol ICC Conditions RL = , VCTL = 0 V (quiescent mode) Ratings min typ 10 max 15 Unit mA
Note *1 : The ratings are just the measured value with no margin afforded. *2 : Items shown to be design target values in the conditions column are not measured.
No. 6209-2/9
LB11985H Truth Table and Control Functions
Source Sink 1 VW WV UW WU UV VU WV VW WU UW VU UV Hall input U H V H W L FR H L H L H L H L H L H L Note: 1. In the FR column, "H" indicates a voltage of 2.75 V or higher, and "L" indicates a voltage of 2.25 V or lower. (When VCC is 5 V.) 2. For the Hall inputs, the input high state is defined to be the state where the (+) input is higher than the corresponding (-) input by at least 0.02 V, and the input low state is defined to be the state where the (+) input is lower than the corresponding (-) input by at least 0.02 V.
2
H
L
L
3
H
L
H
4
L
L
H
5
L
H
H
6
L
H
L
Allowable Power Dissipation
Pd max -- Ta
2.4
Allowable power dissipation, Pd [W]
Mounted on the specified printed circuit board (76.1 x 114.3 x 1.6 mm3 glass epoxy board)
2.0
1.6 1.20 1.2
Independent IC
0.8 0.48
0.4
0 -20
0
20
40
60
80
100
Ambient temperature, Ta [C]
No. 6209-3/9
28
Pin Assignment
Sample Application Circuit
1
VS1
VCC
27
28
2
1
VS2 ADJ
VS1 27 2 VS2 26 3 GSENSE 25 4 RF(SENSE) 5 RF(POWER) 6 UOUT 7 FR CTL 24 LIM 23 CTLREF 22 FC ADJ
VCC
26
3 25 RF(SENSE) 24 RF(POWER) 23 UOUT 22 VOUT FC CTLREF LIM CTL FRAME GND GND
GSENSE FR
4
5
6
7
LB11985H
FRAME
VOUT
LB11985H
WOUT 20 MCOM 19 WIN+ BR 18 FGOUT 17 FGIN- MR 16 VIN- FGIN+ 15 UIN- UIN+ SL
FGS 21
FRAME GND
FRAME GND
LB11985H
8
9
21
8
VCC
WOUT MCOM WIN+ WIN- VIN+ VIN- UIN+
FGS 20 9 SL 10 19 BR 11 18 FGOUT 12 17 FGIN- 13 16 FGIN+ 14 15 UIN-
10 VIN+
11
WIN-
12
13
14
HSOP-28H
Top view
HSOP-28H
A12221
No. 6209-4/9
FC VS1 VS2
Block Diagram
UIN+
UIN-
VIN+
VIN-
UOUT VOUT WOUT
Logarithmic conversion and differential distribution
Synthesized output logarithmic compression block
Hall input synthesis block (linear matrix)
WIN+
WIN-
FR
Forward/ reverse switching
RF(PWR)
Upper side saturation prevention control
LB11985H
Control amplifier Differential distribution and torque ripple correction block
CTLREF
Drive distribution circuit and lower side saturation prevention control
MCOM SL
Full-wave/half-wave switching
CTL
Feedback amplifier
ADJ
Schmitt amplifier FG amplifier Short braking TSD
GSENSE LIM
5 k
BR
Bandgap 1.2V
VCC GND
Reference voltage
150 k 5 k RF(SENSE) FGIN+ FGIN- FGOUT FGS
No. 6209-5/9
LB11985H Pin Functions
Pin No. Symbol Pin Voltage Description Ground for circuits other than the output transistors. The lowest potential of the output transistors will be the that of the RF pin. Equivalent circuit
Unit (resistance : )
FRAME GND
1
VS1
8 V to 15 V
Output block power supply
2
VS2
A diode is internally connected between VS1 and this pin to prevent reverse current flow in half-wave operating mode.
3
GSENSE
Ground sensing. The influence of the common ground impedance on Rf can be excluded by connecting this pin to the ground near the Rf resistor in the motor ground lines that include RF. (This pin must not be left open.)
4 5
RF(SENSE) RF(POWER)
Output current detection. Current feedback is applied to the control block by inserting the resistor Rf between these pins and ground. Also, both the lower side saturation prevention circuit and the torque ripple correction circuit operate according to the voltage on this pin. In particular, since this voltage sets the oversaturation prevention level, the lower side oversaturation prevention operation can be degraded if the value of this resistor is set too low. Note that the POWER pin and the SENSE pin must be connected together.
6
UOUT
1
2
7
VOUT
Coil output
20 50 k 20 10 k 10 k
6 7 8
A13015
8
WOUT
50 k 5
VS1
Motor midpoint connection. Half-wave drive is implemented by connecting the motor midpoint to this pin.
9
MCOM
9
A13016
Continued on next page.
No. 6209-6/9
LB11985H
Continued from preceding page.
Pin No. 10 Symbol WIN+ Pin Voltage Description
Unit (resistance : , current : A )
Equivalent circuit
11
WIN-
W phase Hall element input. Logic "H" is defined as the state where WIN+ > WIN-.
VCC
12
VIN+
10
V phase Hall element input. 1.3 V to 3.3 V Logic "H" is defined as the state where (VCC = 5 V) VIN+ > VIN-.
11 300 300 13 15
12 14
13
VIN-
14
UIN+
15
UIN-
U phase Hall element input. Logic "H" is defined as the state where UIN+ > UIN-.
100 A
A13017
VCC
16 FGIN+ FG amplifier + input. This is the + input to the Schmitt amplifier. There is no bias applied internally.
150 k 5 k 300
6 A
300 16
17
FGIN-
FG amplifier - input. The input resistance is 5 kW and a 150 kW feedback resistor is built in. (The gain is 30x.)
17
A13018
VCC 50 A 50 A
18 2 k 300 300
100
18
FGOUT
FG amplifier linear output.
A13019
19
BR
Short braking control input. High: Short braking Low: Normal motor drive 0 V to VCC Full-wave/half-wave control input. High: Half-wave drive Low: Full-wave drive
VCC 45 k 19 20 15 k 15 k
20
SL
A13020
20 k
5 k
VCC 21
21
FGS
FG Schmitt amplifier output.
A13021
Continued on next page. No. 6209-7/9
LB11985H
Continued from preceding page.
Pin No. Symbol Pin Voltage Description
Unit (resistance : , current : A )
Equivalent circuit
VCC
22
FC
Frequency characteristics correction. Oscillation in the current control system closed loop can be prevented by inserting a capacitor between this pin and ground.
22
6S
A13022
VCC
23
300 23 18 k
300 25
25
CTL
0 V to VCC
Speed control. Control consists of a constant current drive scheme implemented by applying current feedback from RF.
50 A
50 A
A13023
24
LIM
0 V to VCC
Current limiter function control. The voltage applied to this pin modifies the output current linearly.
1 k 60 k 24 20 k
15 k VCC
20 k
CTLREF
1 V to 4 V (VCC = 5 V)
Control reference voltage. Although this voltage is set to V CC x (15/35) internally, it can be modified by applying a voltage from a low-impedance circuit.
A13024
VCC 45 k
26 FR 0 V to VCC
15 k 15 k
Forward/reverse control. The voltage applied to this pin selects forward or reverse operation.
26
A13025
VCC
External torque ripple correction ratio adjustment. To adjust the correction ratio, apply the stipulated voltage to the ADJ pin from a low-impedance external circuit. If the applied voltage is increased, the correction ratio rises, and if the applied voltage is lowered, the correction ratio falls.
27
ADJ
10 k
10 k
6 k 10 k
500
27 6 k 10 k
A13026
28
VCC
Power supply for all circuits other than the IC internal output block. 4.5 V to 5.5 V This voltage must be stabilized so that ripple and noise do not enter the IC.
No. 6209-8/9
LB11985H
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 January, 2000. Specifications and information herein are subject to change without notice. PS No.6209-9/9

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