LB1960MC

LB1960MC-AH SANYO | Alldatasheet

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Specifications of any and all SANYO Semiconductor Co.,Ltd. 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. Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for new introduction or other application different from current conditions on the usage of automotive device, communication device, office equipment, industrial equipment etc. , please consult with us about usage conditi on (temperature, operation time etc.) prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. 70412 SY 20120417-S00001 No.A2078-1/4 LB1960MC Overview The LB1960MC is a 2-phase half-wave driver for fan motor. The LB1960MC is a compact package. 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 Conditions Ratings Unit Maximum supply voltage V CC max 18 V Maximum output current I OUT ave 500 mA IOUT peak t ≤ 1ms 1000 mA Maximum output voltage V OUT max Internal V Maximum HB output current IH max 10 mA Allowable power dissipation Pd max Mounted on a specified board * 750 mW Operating temperature Topr -30 to +85 °C Storage temperature Tstg -55 to +150 °C * Specified board: 114.3mm × 76.1mm × 1.6mm, glass epoxy board. Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Monolithic Digital IC For Fan Motor 2-phase Half-Wave Driver

No.A2078-2/4 Allowable Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit Recommended supply voltage V CC 3.6 to 17 V Common mode input voltage range V COM 0.2 to HB V Electrical Characteristics at Ta = 25°C, VCC = 12V Parameter Symbol Conditions Ratings Unit min typ max Circuit current I CC In drive mode (CT = L) 2.3 4 mA In lockup protection mode (CT = H) 3 5 mA CT capacitor charge current I CT1 V CT = 0.2V 0.8 1.2 2.0 μA Capacitor discharge current I CT2 V CT = 8V 0.16 0.24 0.4 μA Capacitor charge/discharge current ratio RCT RCT = I CT1/ICT2 4.0 5.0 7.0 CT charge voltage V CT1 6.8 7.2 7.6 V CT discharge voltage V CT2 1.4 1.6 1.8 V Output limiter withstand voltage V OLM I O = 1mA 22.5 23.5 24.5 V Output saturation voltage V Osat I O = 50mA 1.0 1.3 V Hall input sensitivity V HN Including offset and hysteresis 6 12 mV HB output H voltage V HBH RH = 350 Ω 1.1 1.3 1.5 V Thermal protection trigger temperature TSD Assured design target * 180 180 210 °C * Assured design target: Target value, not measured individually. Package Dimensions unit : mm (typ) 3424 SANYO : SOIC8 4.9 3.9 6.0 0.835 0.375 0.20.421.27 0.175

1.75 MAX

-30 0 30 60 90 1200 800 600 400 200 390 1000 Ambient temperature, Ta -- °C Allowable power dissipation, Pd max -- mW Specified board: 114.3×76.1×1.6mm3 glass epoxy board.

No.A2078-3/4 Pin Assignment 1IN+ 2HB+ 3IN− 4OUT1 VCC CT OUT2 GND LB1960MC Top view Block Diagram VCC H OUT1 OUT2 GND CT 0.1 to 1μF IN+ IN− L1 L2 HB+ Constant voltage output circuit Constant current source Thermal protection circuit Control Block Truth Table IN- IN + CT OUT1 OUT2 Mode H L L L H Rotating L H H L - - H OFF OFF Lock-up protection activated

PS No.A2078-4/4 Application Circuit Example 5/12V power supply (3.8 to 18V) VCC H OUT1 OUT2 GND CT 0.1μF IN+ IN− HB+ RH 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. This catalog provides information as of July, 2012. Specifications and informat ion herein are subject to change without notice. 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 specif ications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein. Regarding monolithic semiconductors, if you should intend to use this IC continuously under high temperature, high current, high voltage, or drastic temperature change, even if it is used within the range of absolute maximum ratings or operating conditions, there is a possibility of decrease reliability. Please contact us for a confirmation. 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 equ ipment, refer to the "Delivery Specification" for the SANYO Semiconductor Co.,Ltd. product that you intend to use. 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 intellectual property rights which has resulted from the use of the technical information and products mentioned above.