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Ordering number : ENN4456A
Monolithic Digital IC
LB1881V
Three-Phase Brushless Motor Driver IC
Overview
The LB1881V is a three-phase brushless motor driver IC designed for use as a camcorder capstan or drum motor driver, or as a digital audio tape player/recorder motor driver.
Package Dimensions
unit: mm 3175A-SSOP24
[LB1881V]
24 13
1.0 5.6 0.1 0.43 1.6max 0.15
Features
* 120 voltage linear system * Appropriate for portable applications, since the LB1881V reduces system power requirements by using motor voltage control for speed control. * Built-in torque ripple compensation circuit * Small external capacitances due to the adoption of a soft switching technique (chip capacitor). * Built-in thermal shutdown circuit * Built-in FG amplifier
1
8.0
12
0.22
0.65
SANYO: SSOP24
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Symbol VCC1 max Supply voltage VCC2 max VS max Output applied voltage Input applied voltage Output current Allowable power dissipation Operating temperature Storage temperature VO max VI max IO max Pd max Topr Tstg All input pins Conditions Ratings 7 12 VCC2 VS + 2 VCC1 1.0 0.5 -20 to +75 -55 to +150 Unit V V V V V A W 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
73099TH (OT)/43098HA (OT)/12194TS A8-9620 No. 4456-1/7
0.5
7.6
LB1881V
Allowable Operating Ranges at Ta = 25C
Parameter Symbol VCC1 Supply voltage VCC2 VS Conditions VCC1 VCC2 Ratings 4.0 to 6.0 4 to 10 Up to VCC2 Unit V V V
Electrical Characteristics at Ta = 25C, VCC1 = 5 V, VCC2 = 7 V, VS = 3 V
Ratings Parameter Symbol ICC1 Supply current ICC2 IS Output quiescent current Output saturation voltage Output TRS withstand voltage Output quiescent voltage Hall amplifier input offset voltage Hall amplifier common mode input voltage range Hall I/O voltage gain Brake pin high level voltage Brake pin low level voltage Brake pin input current Brake pin leakage current FRC pin high level voltage FRC pin low level voltage FRC pin input current FRC pin leakage current Upper side residual voltage Lower side residual voltage Residual voltage inflection point Overlap level Overlap vertical difference Standby on voltage Standby off voltage Standby pin bias current Thermal protection circuit operating temperature Thermal protection circuit hysteresis FG amplifier input offset voltage Open loop voltage gain Source output saturation voltage Sink output saturation voltage Common mode signal exclusion ratio FG amplifier common mode input voltage range Phase margin Schmitt amplifier threshold voltage Schmitt amplifier hysteresis width ICCOQ ISOQ VO(sat) VO(sus) VOQ VHOFFSET VHCOM GVHO VBRH VBRL IBRIN IBRLEAK VFRCH VFRCL IFRCIN IFRCLEAK VXH VXL VSVX OL OL VSTBYL VSTBYH ISTBYIN TTSD TTSD VFG OFFSET GVFG VFG OU VFG OD GHR VFG CH M VFGS SH VFGS HIS *1 VFGIN+ = 2.5 V, when VFGOUT2 goes from high to low VFGIN+ = 2.5 V 2.45 20 f = 10 kHz IO = -2 mA IO = 2 mA *1 0 20 2.50 40 2.55 60 80 3.5 3.7 1.3 *1 *1 -8 43 150 180 15 +8 IOUT = 100 mA, VCC2 = 6 V, VS = 2 V IOUT = 100 mA, VCC2 = 6 V, VS = 2 V IOUT = 100 mA, VCC2 = 6 V*1 VCC2 = 6 V, VS = 3 V, RL = 100 (Y) VCC2 = 6 V, VS = 3 V, RL = 100 (Y) *2 60 -10 -0.2 2 0.285 0.350 0.9 70 0 80 +10 +0.8 5 100 210 2.8 1.2 100 -30 0.455 0.440 Rangle = 8.2 k VBR = 5 V VBR = 5 V VBR = 5 V, RL = VSTBY = 0 V VSTBY = 0 V, RL = IOUT = 0.6 A, sink + source IOUT = 20 mA*1 VBR = 5 V *1 12 1.45 -5 1.4 34.0 2.0 0.8 120 -30 37.0 1.55 1.65 +5 2.8 40.0 Conditions min typ 3.0 6.5 max 5.0 10.0 5.0 100 150 1.7 Unit mA mA mA A A V V V mV V dB V V A A V V A A V V V % % V V A C C mV dB V V dB V deg V mV
Note: 1. These are target settings, and are not measured. The overlap ratings are taken as test ratings without change. 2. When the standby pin is open the IC will be in the standby state.
No. 4456-2/7
LB1881V
Pin Assignment
Top view
Block Diagram
Allowable power dissipation, Pd max - W
Ambient temperature, Ta - C No. 4456-3/7
LB1881V
Pin Functions
Pin No. 3 Symbol VS Pin voltage VCC2 Equivalent circuit
Unit (resistance: ) Pin function Power supply input that determines the output amplitude. It must be set to a voltage equal or lower than VCC2. Power supply for power amplifier systems other than motor drive transistors. Power supply pin that provides voltage for blocks other than control blocks supplied by VCC1. Power supply that provides voltage for the Hall amplifier, the forward/reverse circuit, the FG amplifier, and the thermal shutdown circuit. All circuits can be made inoperative either by connecting this pin to GND, or by leaving it open. In that state the supply current will be approximately 0 A. Hold at 2 V or higher during normal operation.
4
VCC2
4 to 10 V
5
VCC1
4 to 6 V
6
ST. BY
(H): 2.0 V max (L): 0.8 V min (When VCC1 is 5 V)
7
ANGLE
Connect a resistor between this pin and GND. Changing the value of this resistor will change the Hall input-output gain (motor waveform slope).
9 10
FGIN- FGIN+
0 V min 3.5 V max (When VCC1 is 5 V)
FG signal input pin
11
FGOUT1
FG amplifier output pin
Continued on next page No. 4456-4/7
LB1881V
Continued from preceding page.
Pin No. 12 Symbol FGOUT2 Pin voltage Equivalent circuit Unit (resistance: ) Pin function FG Schmitt amplifier output pin
14
FRC
(H): 2.8 V min (L): 1.2 V max (When VCC1 is 5 V)
Pin for setting the motor to forward or reverse rotation Low level: Forward rotation (under 1.2 V: when VCC1 is 5 V) High level: Reverse rotation (over 2.8 V: when VCC1 is 5 V)
15
BR
(H): 2.0 V min (L): 0.8 V max
Motor brake pin Low level: Motor drive (under 0.8 V) High level: Motor brake (over 2.0 V)
16 17 18 19 20 21
WIN2 WIN1 VIN2 VIN1 UIN2 UIN1
1.4 V min 2.8 V max (When VCC1 is 5 V)
W phase Hall element input pins. Logic high is defined to be states where WIN1 > WIN2. V phase Hall element input pins. Logic high is defined to be states where VIN1 > VIN2. U phase Hall element input pins. Logic high is defined to be states where UIN1 > UIN2.
22 23 24 2
Rf UOUT VOUT WOUT
Output transistor GND Output pin
1 13
SUBGND GND
GND for all circuits other than output transistors.
No. 4456-5/7
LB1881V
Sample Application Circuit
Units (resistance: , capacitance: F)
Logic Value Table
Source Sink 1 W phase V phase V phase W phase W phase U phase U phase W phase V phase W phase W phase V phase U phase V phase V phase U phase V phase U phase U phase V phase U phase W phase W phase U phase U H Input V H W L Forward and reverse control F/RC L H L H L H L H L H L H
2
H
L
L
3
L
L
H
4
L
H
L
5
H
L
H
6
L
H
H
Inputs: High: For each phase, the input 1 potential is at least 0.2 V higher than the input 2 potential. Low: For each phase, the input 1 potential is at least 0.2 V lower than the input 2 potential. Forward/reverse control: High: 2.8 V to VCC1 Low: 0 to 1.2 V
No. 4456-6/7
LB1881V
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 July, 1999. Specifications and information herein are subject to change without notice. PS No. 4456-7/7

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