LB1962M SANYO | Alldatasheet

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Technical content

Features

  • Support for 5V/12V dual power supply voltage
  • Built-in regenerative circuit allows use of reverse- connection protection diode
  • Built-in Hall amplifier with hysteresis (supports core without auxiliary electrode)
  • Built-in lockup protection and automatic recovery circuits
  • Latch-type lockup detection output (RD) is Low during rotation and High during stop (LB1862M)
  • Rotation detection output (FG) (LB1962M)
  • Hall bias pin and start/stop pin allow reduced current drain in standby mode
  • Built-in thermal protection circuit LB1862M, 1962M Package Dimensions unit: mm 3086A-MFP10S 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. O2599RM(KI) SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN Monolithic Digital IC Fan Motor Single-Phase Full-Wave Drivers [LB1862M/LB1962M] SANYO : MFP10S Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Symbol Conditions Ratings Unit Maximum supply voltage V CC max 17 V Maximum output current I OUT max 0.5 A Maximum output withstand voltage VOUT max (LB1862M) 15 V (LB1962M) 15 V RD/FG maximum output V R max (LB1862M) 15 V withstand voltage V F max (LB1962M) 17 V RD/FG maximum output current I R max 5m A IF max 5m A HB maximum output current I B max 10 mA ST maximum input voltage V ST max 15 V Allowable power dissipation Pd max With specified substrate* 850 mW Operating temperature Topr (LB1862M) –20 to +75 °C (LB1962M) –30 to +85 °C Storage temperature Tstg –55 to +150 °C *Specified substrate: 114.3 · 76.2 · 1.5 mm3 glass epoxy 0.55 1.8 max 1.00.35 5.1 0.15 6.4 1.5 0.1 4.4 5.15 0.625

LB1862M, LB1962M No. 5657-2/7 Truth Table ST IN – IN+ CT OUT1 OUT2 RD FG HB Mode H – – – off off off off off Standby HL L HL L L L RotatingLLH LH H – – H off off off – L Lockup protection activated Latch-type RD output is Low during rotation and High during stop. Allowable Operating Ranges at Ta = 25˚C Parameter Symbol Conditions Ratings Unit Power supply voltage V CC 3.8 to 16.8 V ST input High level voltage ST H 3 to 14 V ST input Low level voltage ST L –0.3 to +0.4 V Hall input common mode voltage V ICM 0.2 to VCC –1.5 V range Electrical Characteristics at Ta = 25˚C, VCC = 5V Parameter Symbol Conditions Ratings Unitmin typ max Current drain I CC In drive mode (CT = [L], ST = [L]) 6.5 9.1 mA In lockup protection mode (CT = [H], ST = [L]) 2.2 3.1 mA In standby mode (ST = [H]) 110 150 mA Lockup detection I CT 1 1.9 2.8 3.7 mA capacitor charge current Capacitor discharge current I CT 2 0.32 0.46 0.60 mA Capacitor charge/discharge current ratioR CT R CD = ICT 1/ICT 2 5.0 6.0 7.0 CT charge voltage V CT 1 2.55 2.75 2.95 V CT discharge voltage V CT 2 1.6 1.8 2.0 V Output Low level voltage V OL IO = 200 mA 0.2 0.3 V Output High level voltage V OH IO = 200 mA 3.9 4.1 V Hall input sensitivity V HN Zero peak value 7 15 mV (Including offset and hysteresis) RD/FG output pin Low voltage V RD, VFG IRD, IFG = 5 mA 0.1 0.3 V RD/FG output pin leakage current IRDL, IFGL VRD, VFG = 15V 30 mA HB output Low voltage V HBL IHB = 5 mA 1.0 1.3 V ST pin input current I ST VST = 5V 75 100 mA Pin Assignment IN– RD(FG) HB ST VCC OUT2 Top view IN+ CT OUT1 GND A07357 LB1862M LB1962M

LB1862M, LB1962M No. 5657-3/7 Block Diagram Sample Application Circuit A07358 H IN– IN+ HB ST CT GND VCC OUT1 OUT2 C1 = 0.47 to 1 µF RD (FG) CT VCC 0.47 to 1 µF HALL IN+ IN– HB Discharge pulse Hysteresis amplifier Thermal protection circuit Charge/discharge circuit Delay circuit Delay circuit Control circuit START/STOP ST GND OUT1 OUT2 RD (LB1862M) (LB1962M) FG M A07359

LB1862M, LB1962M No. 5657-4/7 Startup Lockup protection/automatic recovery Start/stop A07360 A07361 VCC OUT CT RD FG OUT RD FG CT ST OUT RD FG Locked Released Output OFF Output OFF Output OFF Output ON Power-on

LB1862M, LB1962M No. 5657-5/7 Design reference (1) VCC pin Power supply pin for control block and motor drive. Accepts a wide operation voltage range from 3.8 to 16.8V , for 5V/12V dual power supply support. (2) OUT1, OUT2 pins Single-phase coil output pins. Bipolar drive output with upper side inverted and lower side single output. Built-in regenerative circuit regenerates kickback current between lower side NPN outputs when a diode is used for protection against reverse connection. (3) IN –, IN+ pins Hall input signal pins The Hall signal is amplified into a square wave by the Hall amplifier with hysteresis characteristics of –3.5 mV (typ.). The Hall input signal amplitude should be 70 mV or more. (4) CT pin This pin serves for connecting a capacitor between CT and GND. The capacitor determines the characteristics of the built-in lockup protection circuit for preventing coil burnout in the case of motor restraint. Once normal motor load is restored, the automatic recovery circuit resets itself. Changing the capacitance alters the lockup detection time. When a 0.47 mF capacitor is connected between CT and GND Lockup detection time : approx. 0.5s Lockup protection time/automatic recovery time : approx. 0.16s (output ON) approx. 1s (output OFF) When not using lockup protection function, this pin should be connected to ground. (5) RD pin (LB1862M) Open-collector output pin that is Low during rotation and OFF when lockup is detected. The output is a latch type which stays OFF also when the automatic recovery circuit has restored drive mode unless the rotation actually resumes. (6) FG pin (LB1962M) Open-collector output pin for rotation frequency detection. When IN – = High and IN+ = Low, then FG = Low When IN – = Low and IN+ = High, then FG = High (7) ST pin and HB pin ST pin : When input to this pin is High, motor drive is stopped (OUT is high impedance). At this time, RD output indicates lockup protection mode OFF. HB pin : Hall bias switching pin. At ST pin High input, Hall bias is switched to reduce current drain in fan standby mode. If not used, both pins should be open. (8) Thermal protection circuit When internal temperature Tj of IC reaches 180°C, output current limiter is activated to protect against damage.

LB1862M, LB1962M No. 5657-6/7 1.0 0.8 0.6 0.4 0.2 0024 8 61 4 1210 Allowable power dissipation, Pd max – mW Ambient temperature, Ta – °C Pdmax – Ta Current drain, ICC – mA Power supply voltage, VCC – V ICC – VCC Output current, IO – A VO(sat)L – IO Input current, IIN – µA Input voltage, VIN – V IIN – VIN Upper side output saturation voltage, VO(sat)H – V Output current, IO – mA VO(sat)H – IO V CC =5VV CC =3.8V Ta=25°C V CC =3.8V Ta=25°C V CC =3.8V Ta=25°C IN-= L IN+ = L CT = H ST = H HB RD 510 Specified substrate (114.3 · 76.2 · 1.5 mm3 glass epoxy) V RD ,VHB – V IRD ,IHB – mA VRD ,VHB -IRD ,IHB -20 0 80 604020 1000 800 850 600 400 200 100 02 6 4 8 10 16 18 1412 22 20 300 4002001000 0.5 0.4 0.3 0.2 0.1 500 400 300 200 100 002 6 4 8 10 16 18 1412 20 300 500 4002001000 1.0 0.8 0.6 0.4 0.2 Lower side output saturation voltage, VO(sat)L – V

LB1862M, LB1962M No. 5657-7/7 This catalog provides information as of October, 1999. Specifications and information herein are subject to change without notice. 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. PS