LB1868M

Ordering number : ENN6203 LB1868M Monolithic Digital IC LB1868M Two-Phase Brushless Fan Motor Driver Overview The LB1868M is a 2-phase unipolar brushless motor driver. With only a few peripheral parts, lockup protection and automatic recovery can be implemented. The IC can be configured for 12V or 24V operation and a wide range of variations, from LOW speed to H-High speed and from 60 cm to 120 cm square using the same PCB. This makes it easy to design highly reliable fan motor installations. Package Dimensions unit: mm 3111-MFP14S [LB1868M] 14 8 0.625 1.8max Functions and Features • Output protection Zener diode with variable withstand voltage Z1, Z2 pins open: VOLM = 57V (24V specification) Z1, Z2 pins shorted: VOLM = 32V (12V specification) External Zener diode connected between Z1 and VCC pins: support for fans with large drive current External resistor allows configuration for 12V or 24V. Direct Hall element connection possible (built-in Hall amplifier with hysteresis supports core without auxiliary electrode) Built-in output transistor with 1.0A output current (strengthened negative-current support for core without auxiliary electrode) Built-in rotation detection function: Low during rotation and High during stop Built-in lockup protection with automatic recovery ST pin for motor stop/drive (for standby mode of copiers etc.) FG output pin for rotation detection BC pin for kickback noise reduction (with 2 external capacitors) Built-in thermal shutdown 1 8.0 0.1 1.5 7 0.15 0.35 1.0 1.0 SANYO : MFP14S • • • • • • • • • 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 83100RM(KI) No. 6203-1/5 5.15 6.4 4.4 LB1868M Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Maximum input current Maximum applied output voltage Maximum output current Current flowing into RD, FG RD, FG applied voltage ST applied voltage Allowable power dissipation Operating temperature Storage temperature Symbol Conditions ICC max t ≤ 20 ms VOUT max IOUT max IRD max VRD max VST max Pd max *With specified substrate Topr Tstg Ratings 200 Internal 1.0 10 30 7.5 800 –30 to +80 –55 to +150 Unit mA V A mA V V mW °C °C *Printed circuit board: 20 × 15 × 1.5 mm3 glass epoxy Pd max – Ta 0.9 With 20 × 15 × 1.5 mm3 glass epoxy 0.8 Allowable power dissipation, Pd max – W 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 –30 –20 0 20 40 60 80 100 Ambient temperature, Ta – °C Allowable Operating Ranges at Ta = 25˚C Parameter Input voltage range Common mode input voltage range ST High voltage ST Low voltage Symbol ICC VICM VSTH VSTL Conditions Ratings 6.0 to 50 0.2 to VIN–1.5 4.5 to 7.0 0 to 0.5 Unit mA V V V Electrical Characteristics at Ta = 25˚C, Icc = 10 mA Parameter Output limiter withstand voltage Output saturation voltage VIN voltage Hall input sensitivity (at zero peak) RD, FG output saturation voltage CT drain current CT discharge current Comp input threshold voltage ST input current Thermal protection circuit operating temperature Thermal protection circuit hysteresis Symbol VOLM1 VOLM2 Vosat 1 2 VIN VHN VRDsat IC1 IC2 VTH1 VTH2 IST TSD ∆TSD Conditions Z1, Z2 open Z1, Z2 short Io = 0.5A Io = 1.0A ICC = 7.0 mA Including offset and hysteresis IRD = 5 mA C = GND C = VIN min 54 31 Ratings typ 57 33 0.95 0.15 6.4 6.7 max 60 35 1.2 1.5 7.0 20 0.3 4.9 0.41 0.83 0.48 120 Unit V V V V V mV V µA µA V V µA °C °C VST = 5V Design target value* Design target value* 0.1 2.7 3.8 0.19 0.30 0.77 0.8VIN 0.42 0.45VIN 80 180 40 * Design target values are not measured. No. 6203-2/5 LB1868M Block Diagram and Sample Application Circuit D R1 VIN Thermal shutdown L1 L2 R2 OUT1 IN+ Control block IN– H BC Z1 ST Constant current source OUT2 Z2 CT FG C1 0.47 to 10 µF GND RD Truth Table ST H L or OPEN IN+ H L H L H L IN– L H L H L H CT L L L L H H OUT1 H H H L H H OUT2 H H L H H H RD L L L L H H FG L H L H L H *RD is a latch type output. No. 6203-3/5 LB1868M Pin Description Pin name IN– IN+ CT Z1 Z2 OUT1 OUT2 VIN GND RD FG ST BC Function Hall input + pin Hysteresis amplifier Hall input – pin Hysteresis amplifier Lockup protection time setting capacitor pin (0.47 to 4.7 µF) External Zener diode pin (external Zener diode to be connected between power supply and Z1) Kickback absorption voltage alteration pin (shorted to Z1: 12V operation) Output 1 pin Output 2 pin Regulated power supply input pin (limiting resistor to be inserted between power supply and VIN) GND pin Lockup detection pin (latch type) Rotation frequency detector pin Start/stop pin Output transistor common base pin Pin Assignment IN– 1 IN+ 2 CT 3 ST 4 BC 5 OUT1 6 GND 7 14 VIN 13 RD 12 FG LB1868M 11 Z2 10 Z1 9 8 OUT2 NC Top view Sample Application Circuits (1) 12V supply voltage Vcc 12V 330 Ω 2 kΩ 14 VIN 13 RD 12 FG 11 Z2 10 Z1 9 OUT2 8 LB1868M IN– 1 H IN+ 2 CT 3 ST 4 0.47 µF BC 5 OUT1 6 GND 7 No. 6203-4/5 LB1868M (2) 24V supply voltage Vcc 24V 1.2 kΩ 2 kΩ 14 VIN 13 RD 12 FG 11 Z2 10 Z1 9 OUT2 8 LB1868M IN– 1 H IN+ 2 CT 3 ST 4 0.47 µF BC 5 OUT1 6 GND 7 (3) High-Power Fan (120 mm-HH-speed) Vcc 12V (24V) 330 Ω (1.2 kΩ) 14 VIN 13 RD 12 FG VZ = 12V (24V) 11 Z2 10 Z1 9 OUT2 8 2 kΩ LB1868M IN– 1 H IN+ 2 CT 3 ST 4 0.47 µF BC 5 OUT1 6 GND 7 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 August, 2000. Specifications and information herein are subject to change without notice. PS No. 6203-5/5