Ordering number : EN6191A Monolithic Digital IC LB1960M For Fan Motor 2-phase Half-Wave Driver Overview The LB1960M is a 2-phase half-wave driver for fan motor. The LB1960M is a compact package (MFP8). Low external parts count, easy wiring, and small PCB area allow use also with miniature fan motors. Functions • Dual power supply voltage design (5/12V) and wide voltage handling range. (3V also supported for rotation functions only) • Constant-voltage Hall bias power supply (1.3V across HB to GND) assures stable Hall output over entire temperature and power supply voltage range. External limiting resistor not required. • Built-in Hall amplifier with hysteresis (supports core without commutating pole). • Built-in lockup protection and automatic recovery circuits (External capacitor for rotation detection need only be 0.1µF, allowing compact, cost-saving design). • Built-in output transistor with output withstand voltage 24V (max)/output current 500mA (average), 1A (peak). • Built-in thermal protection circuit. Specifications Maximum Ratings at Ta = 25°C Parameter Symbol Maximum supply voltage VCC max Maximum output current IOUT ave IOUT peak Conditions Ratings Unit 18 t ≤ 1ms V 500 mA 1000 mA Maximum output voltage VOUT max Maximum HB output current IH max Internal Allowable power dissipation Pd max Operating temperature Topr -30 to +85 °C Storage temperature Tstg -55 to +150 °C Mounted on a specified board * V 10 mA 600 mW * Specified board: 114.3mm × 76.1mm × 1.5mm, glass epoxy board. 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D0308 MS / 63099RM(KI) No.6191-1/4 LB1960M Allowable Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit Recommended supply voltage VCC 3.6 to 17 V Common mode input voltage range VCOM 0.2 to HB V Electrical Characteristics at Ta = 25°C, VCC = 12V Parameter Symbol Ratings Conditions min Circuit current ICC CT capacitor charge current ICT1 VCT = 0.2V Capacitor discharge current ICT2 VCT = 8V Capacitor charge/discharge current RCT RCT = ICT1/ICT2 typ In drive mode (CT = L) Unit max 2.3 In lockup protection mode (CT = H) 4 mA 3 5 mA 0.8 1.2 2.0 µA 0.16 0.24 0.4 µA 4.0 5.0 7.0 ratio CT charge voltage VCT1 6.8 7.2 7.6 V CT discharge voltage VCT2 1.4 1.6 1.8 V 22.5 23.5 24.5 V 1.0 1.3 V 6 12 mV Output limiter withstand voltage VOLM IO = 1mA Output saturation voltage VOsat IO = 500mA Hall input sensitivity VHN Including offset and hysteresis HB output H voltage VHBH RH = 350Ω 1.1 1.3 1.5 V Thermal protection trigger TSD Assured design target * 150 180 210 °C temperature * Assured design target: Target value, not measured individually. Package Dimensions unit : mm (typ) 3032B Pd max -- Ta Allowable power dissipation, Pd max -- mW 800 5.0 5 0.63 4.4 6.4 8 1.27 0.15 0.35 (1.5) (0.65) 4 1.7max 1 Specified board: 114.3×76.1×1.5mm3 glass epoxy board. 600 400 312 200 0 -30 -20 0 20 40 60 80 85 100 0.1 Ambient temperature, Ta -- °C SANYO : MFP8(225mil) Pin Assignment IN+ 1 IN− 3 LB1960M HB+ 2 8 VCC 7 CT 6 OUT2 5 GND OUT1 4 Top view No.6191-2/4 LB1960M Block Diagram VCC HB+ IN+ H IN− L1 Thermal protection circuit 8 Constant voltage output circuit 2 1 4 L2 OUT1 Control Block 3 6 OUT2 Constant current source CT 7 C1 0.1 to 1µF 5 GND Truth Table IN- IN+ H L L H - - CT L H OUT1 OUT2 L H H L OFF OFF Mode Rotating Lock-up protection activated No.6191-3/4 LB1960M Application Circuit Example 5/12V power supply (3.8 to 18V) VCC HB+ RH OUT1 H IN+ IN− OUT2 CT 0.1µF GND On-board parts Precautions • If CT pin is connected to GND, the lockup protection and restart functions are disabled. • In a circuit configuration as shown above, a power supply/GND reverse connection will cause a current to flow as follows: GND → OUT → coil → power supply. The value of this current is limited by the coil resistance. If it is less than 500mA, the IC will not be destroyed. If required, insert a diode between VCC and the coil. SANYO Semiconductor Co.,Ltd. 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 Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents 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 Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require 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 consent of SANYO Semiconductor 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 Semiconductor Co.,Ltd. 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. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of December, 2008. Specifications and information herein are subject to change without notice. PS No.6191-4/4