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Ordering number:EN3659
Monolithic Digital IC
LB1851M
3-Phase Brushless Motor Driver
Overview
The LB1851M is a 3-phase brushless motor drive IC ideally suited for use in VCR capstan motor driver, drum motor driver, and DAT motor driver applications.
Package Dimensions
unit:mm 3073A-MFP30S
[LB1851M]
Features
* 120C voltage linear type. * Less power dissipation because of speed control based on motor voltage control (suitable for use in portable sets). * Torque ripple compensation circuit on chip. * Small capacitance of external capacitor because of soft switching method (clip capacitor). * Thermal shutdown circuit on chip. * FG amplifier on chip.
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage1 Maximum supply voltage2 Maximum supply voltage3 Output supply voltage Output Current Allowable power dissipation Operating temperature Storage temperature Symbol VCC1 max VCC2 max VS max VO max IO max Pd max Topr Tstg Conditions
SANYO : MFP30S
Ratings 7 16 VCC2 VS+2V 1.5 1.0 -20 to +75 -55 to +125
Unit V V V V A W
C C
Absolute Operating Conditions at Ta = 25C
Parameter Supply voltage1 Supply voltage2 Supply voltage3 Symbol VCC1 VCC2 VS Conditions Ratings 4.0 to 6.0 4 to 14 up to VCC2 Unit V V V
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 Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
73098HA (KT)/9050TA (KOTO) No.3659-1/6
LB1851M
Electrical Characteristics at Ta = 25C, VCC1=5V, VCC2=7V, VS=3V
Parameter Supply current 1 Supply current 2 Supply current 3 Output standby current 1 Output standby current 2 Output saturation voltage Output TRS voltage Output standby voltage Hall amplifier input Offset votlage Hall amplifier common-mode Input voltage range Hall input-output Voltage gain Brake pin 'H'-level voltage Brake pin 'L'-level voltage Brake pin input current Brake pin leakage current FRC pin 'H'-level voltage FRC pin 'L'-level voltage FRC pin input current FRC pin leakage current Upper residual voltage Lower residual voltage Residual voltage inflection point Overlap amount Standby ON voltage Standby OFF voltage Standby pin bias current Operating temperature of thermal shutdown circuit Hysteresis of thermal shutdown circuit [FG Amplifier] FG amplifier input offset voltage Open loop voltage gain Source side output saturation voltage Sink side output saturation voltage Common-mode signal rejection FG ampilier common-mode input voltage range Phase margin Schmitt amplifier threshold voltage Schmitt amplifier hysteresis VFG in+=2.5V, VFGOUT2 at H to L VFG in+=2.5V 2.45 20 VFG offset GVFG VFG OUT VFG OD CHR VFG CH 0 20 2.50 40 2.55 60 f=1kHz IO=-2mA IO=2mA 3.7 1.3 80 3.5 -8 60 +8 Open : standby off (note1) Pin GND 150 180 15
C*
Symbol ICC1 ICC2 IS ICCOQ ISOQ VO(sat) VO(sus) VOQ VH offset VHCOM GVHO Rangle=8.2k VBR=5V VBR=5V VBR=5V, RL= VSTBY=0V VSTBY=0V, RL=
Conditions
Ratings min typ 4.5 15 6.5 max 6.5 20 9.0 180 150 2.3 16 1.4 -5 1.4 31.5 2.0 0.8 100 -30 2.8 1.2 100 -30 34.5 1.5 1.6 +5 2.8 37.5
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*
IOUT=1.0A, sink+source IOUT=20mA IBR=5V
VXH VXL
IOUT=100mA, VCC2=6V, VS=2V IOUT=100mA, VCC2=6V, VS=2V VCC2=6V, VS=3V
0.38 0.41 2.0 60 -0.2 2 70
0.55 0.5 80 +0.1 5 10 210
mV dB V V dB* V
C*
V mV
Note1 : When standby pin is left open, standby operation is turned to off. Note2*: Values shown are design targets only. No measurements have been taken. Overlap spec. are regarded as test specification.
No.3659-2/6
LB1851M
Pin Assignment
Block Diagram
No.3659-3/6
LB1851M
Sample Application Circuit
Truth Table
Mode 1 2 3 4 5 6 Source Sink 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 H L L H L Input V H L L H L H W L L H L H H Forward/Reverse Control L H L H L H L H L H L H
Input : "H" : Input 1 of each phase is at a potential which is higher by more than 0.2V relative to input 2. "L" : Input 1 of each phase is at a potential which is lower by more than 0.2V relative to input 2. Forward/reverse control : "H" :2.8V to VCC1 "L" : 0V to 1.2V
No.3659-4/6
LB1851M
Pin Description
Unit (resistance : ) Pin No. 4 Symbol VS VCC2 VCC1 Pin voltage 5 6
7
ST. BY
L : 0.1V max H : 2.0V min (When VCC1=5V)
The hall input-output gain (slope of motor waveform) can be changed by changing the resistance connected across this pin and GND. 8 ANGLE
FG signal input pin. FG in- FG in+
10 11
min 0V max 3.5V (When VCC1=5V)
FG amp output pin.
12
FGOUT1
FG schmitt amp output pin.
13
FGOUT2
18
FRC
L : 1.2V max H : 2.8V min (When VCC1=5V)
Pin for forward/reverse control of motor L level : Forward (Less than 1.2V : When VCC1=5V) H level : Reverse (More than 2.8V : When VCC1=5V).
19
BR
L : 0.8V max H : 2.0V min
Pin for stopping the motor L level : Motor drive (Less than 0.8V). H level : Motor stop (More than 2.0V).
No.3659-5/6
LB1851M
Continued from preceding page.
Unit (resistance : ) Equivalent circuit Pin function W phase hall element input pin Logic "H" : Win1>Win2 V phase hall element input pin Logic " H" : Vin1>Vin2 min 1.4V max 2.8V (When VCC1=5V) U phase hall element input pin Logic " H" : Uin1>Uin2
Pin No. 20 21 22 23 24 25 26
Symbol Win2 Win1 Vin2 Vin1 Uin2 Uin1 Rf
Pin voltage
GND for output transistor. Output pin.
27 28 3
UOUT VOUT WOUT
1,2 14,15 16,17 29,30 FRAME (GND)
GND for other than output.
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 and all SANYO products described or contained herein fall under strategic products (including services) controlled under the Foreign Exchange and Foreign Trade Control Law of Japan, such products must not be exported without obtaining export license from the Ministry of International Trade and Industry 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, 1998. Specifications and information herein are subject to change without notice.
PS No.3659-6/6

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