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Ordering number:EN3318
Monolithic Digital IC
LB1822
3-Phase Brushless Motor Predriver with Digital Speed Control
Overview
The LB1822 is a monolithic predriver IC for controlling three-phase brushless motors and has an on-chip digital speed control circuit. The LB1822 is ideally suited for driving the motor of laser beam printers, facsimiles, plain paper copiers, and so on.
Package Dimensions
unit:mm 3147A-DIP28HS
[LB1822]
Features
* 30V withstand voltage and 30mA output current. * Current limiter. * Low-voltage protection circuit. * Thermal shutdown circuit. * Hall amp with hysteresis characteristic. * Start/Stop terminals. * Crystal osillator and divider. * Digital speed control circuit. * Lock detector.
SANYO : DIP28HS
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage 1 Maximum supply voltage 2 Output current Allowable power dissipation1 Allowable power dissipation2 Operating temperature Storage temperature Symbol VC C VM IO Pd max1 Pd max2 Topr Tstg Independent IC With infinte heat sink Conditions Ratings 30 30 30 3 20 -20 to +80 -55 to +150 Unit V V mA W W
C C
Allowable Operating Conditions at Ta = 25C
Parameter Supply voltage1 Supply voltage2 Voltage regulator output current Comparator output current Lock detector output current Symbol VCC VM IVH IOSC ILD Conditions Ratings 9.5 to 28 5 to 28 0 to 20 0 to 30 0 to 20 Unit V V mA mA mA
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
82098HA (KT)/3260TA, TS(GTPS) No.3318-1/5
LB1822
Electrical Characteristics at Ta = 25C, VCC=VM=24V
Parameter Supply current 1 Supply current 2 Output saturation voltage Output leak current [Voltage regulator] Output voltage Voltage fluctuation Load fluctuation Temperature Coefficient [Hall amplifier] Input bias current Common-mode input voltage Hall input sensitivity Hysteresis width Low to high input voltage High to low input voltage [Oscillator] High-level output voltage Low-level output voltage Oscillation amplitude Oscillation frequency Temperature coefficient [Comparator] Output voltage [Current limiter] Limiter1 Lmiter2 Thermal shutdown temperature Hysteresis width Low-voltage protection voltage Hysteresis width [FG amplifier] Input offset voltage Input bias current High-level output voltage Low-level output voltage FG input sensitivity Schmitt width at next stage Operating frequency range Open-loop voltage gain [Speed Discriminator] High-level output voltage Low-level output voltage Maximum clock frequency Count pulses [Integrator] Input offset voltage Input bias current High-level output voltage Low-level output voltage Open-loop gain Gain-bandwidth product Reference votlage 5V supply [Lock detection] Low-level output voltage Locking range VOL(LD) ILD=10mA 3.125 0.5 V % V5 -5% 4.6 VIO(INT) IB(INT) VOH(INT) VOL(INT) -10 -0.4 3.7 60 1.6 V5/2 5 +5% 5.4 4.3 0.8 10 +0.4 4.9 1.2 mV A V V dB MHz V V VOH(D) VOL(D) 4.7 0.3 V V MHz 2046 2048 60 VIO(FG) IB(FG) VOH(FG) VOL(FG) IFG=-2mA IFG=2mA 10x Gain -10 -1 5.6 5 16 5 6.2 1 +10 +1 6.8 1.5 mV A V V mV mV kHz dB VRf1 VRf2 TSD TSD VLVSD VLVSD 7.5 0.45 Design target 0.42 0.4 150 0.5 0.44 180 30 8.1 0.6 8.7 0.75 0.6 0.48 V V VOSC IOSC=20mA 1.5 V f f R=300k, C=1500pF VOH(CR) VOL(CR) 2.9 0.9 1.8 3.2 1.1 2.1 18.5 0.1 3.5 1.3 2.4 V V V kHz VIN VSLH VSHL IHB VICH 1 1.5 100 24 8 -25 33 20 -13 42 32 -1 4 2.8 A V mVp-p mV mV mV VH VH1 VH2 IVH=10mA VCC=9.5 to 28V IVH=5 to 20V 3.8 4.15 60 60 -2 4.5 150 150 V mV mV Symbol ICC1 ICC2 VO sat1 IO leak Conditions Ratings min typ 33 Stop mode IO=10mA 3 1.5 max 50 5 2.0 100 Unit mA mA V A
mV/C
%/C
C C
V V
Tj=100C
1.05 2044
Continued on next page.
No.3318-2/5
LB1822
Continued from preceding page.
Parameter [Start/Stop] Operating voltage [Crystal Oscillator] Precision of oscillating frequnecy Temperature coefficient Drift in rotation speed
Symbol
Conditions
Ratings min 0.4 typ 0.5 max 0.6 500 -3 0.01
Unit
V ppm
ppm/C
Referenced to indicated frequnecy
-500
%
Truth Table
Pin Assignment
(Top view)
No.3318-3/5
LB1822
Block Diagram
No.3318-4/5
LB1822
Description of Terminal Function
Pin Name IN+ 1, IN- 1 IN+ 2, IN- 2 IN+ 3, IN- 3 OUT1 OUT2 OUT3 VCC VM Rf CR OSC INT. OUT INT. IN D. OUT C LD FG IN- FG IN+ FGOUT X' tal 5V Pin No. 19, 20 17, 18 15, 16 5, 6 7, 8 9, 10 2 12 11 3 1 24 25 23 4 22 27 26 28 21 13 Description OUT1:Hall element input terminals for Phase 1. " H" logic is the state when IN+ > IN-. OUT2: Hall element input terminals for Phase 2. " H" logic is the state when IN+ > IN-. OUT3: Hall element input terminals for Phase 3. " H" logic is the state when IN+ > IN-. Output terminals for Phase 1. Output terminals for Phase 2. Output terminals for Phase 3. Power supply for everything, except outputs. Power supply for outputs. Output current detection terminal. An Rf is conented across this terminal and GND, and the output current is detectied as voltage. Sets the oscillating frequency of the switching regulator. Outputs duty-controlled pulses. Open-collector output. Integrator output terminal (speed control terminal). Varies the switching regulator output votlage. Integrator input terminal. Speed discriminator output terminal. Goes LOW when the specified speed is exceeded. Suppresses ripples in the motor current during operation of current limiter 2. Lock detection terminal. Goes LOW when the motor rotation speed is when the locking range. FG pulse input (Start/Stop control) terminal. FG pulse input (4V supply) terminal. FG amp output termianl. Crystal oscillator terminal to which a crystal resonator is connected. 5V supply terminal. U...source L...sink
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 August, 1998. Specifications and information herein are subject to change without notice.
PS No.3318-5/5

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