LB1960M_08

Ordering number : EN6191A Monolithic Digital IC LB1960M Overview For Fan Motor 2-phase Half-Wave Driver 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 Parameter Maximum Ratings at Ta = 25°C Symbol VCC max IOUT ave IOUT peak Maximum output voltage Maximum HB output current Allowable power dissipation Operating temperature Storage temperature VOUT max IH max Pd max Topr Tstg Mounted on a specified board * t ≤ 1ms Conditions Ratings 18 500 1000 Internal 10 600 -30 to +85 -55 to +150 Unit V mA mA V mA mW °C °C Maximum supply voltage Maximum output current * 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 Recommended supply voltage Common mode input voltage range Symbol VCC VCOM Conditions Ratings 3.6 to 17 0.2 to HB Unit V V Electrical Characteristics at Ta = 25°C, VCC = 12V Parameter Circuit current Symbol ICC Conditions min In drive mode (CT = L) In lockup protection mode (CT = H) CT capacitor charge current Capacitor discharge current Capacitor charge/discharge current ratio CT charge voltage CT discharge voltage Output limiter withstand voltage Output saturation voltage Hall input sensitivity HB output H voltage Thermal protection trigger temperature * Assured design target: Target value, not measured individually. VCT1 VCT2 VOLM VOsat VHN VHBH TSD IO = 1mA IO = 500mA Including offset and hysteresis RH = 350Ω Assured design target * 1.1 150 6.8 1.4 22.5 7.2 1.6 23.5 1.0 6 1.3 180 7.6 1.8 24.5 1.3 12 1.5 210 V V V V mV V °C ICT1 ICT2 RCT VCT = 0.2V VCT = 8V RCT = ICT1/ICT2 0.8 0.16 4.0 Ratings typ 2.3 3 1.2 0.24 5.0 max 4 5 2.0 0.4 7.0 mA mA µA µA Unit Package Dimensions unit : mm (typ) 3032B 800 Pd max -- Ta Specified board: 114.3×76.1×1.5mm3 glass epoxy board. 5.0 8 5 Allowable power dissipation, Pd max -- mW 600 4.4 6.4 400 312 1 (0.65) 1.27 4 0.35 0.15 0.63 200 (1.5) 1.7max 0 -30 -20 0 20 40 60 80 85 100 Ambient temperature, Ta -- °C 0.1 SANYO : MFP8(225mil) Pin Assignment IN+ 1 8 VCC LB1960M Top view HB+ 2 IN− 3 OUT1 4 7 CT 6 OUT2 5 GND No.6191-2/4 LB1960M Block Diagram VCC HB+ 8 Constant voltage output circuit Thermal protection circuit L1 L2 2 4 OUT1 IN+ H IN− 1 3 Control Block 6 Constant current source OUT2 CT C1 0.1 to 1µF 7 5 GND Truth Table INH L IN+ L H H CT L OUT1 L H OFF OUT2 H L OFF Lock-up protection activated Mode Rotating No.6191-3/4 LB1960M Application Circuit Example 5/12V power supply (3.8 to 18V) VCC HB+ RH H IN+ IN− OUT2 CT 0.1µF OUT1 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