LA6587T_11

Ordering number : ENA0603A Monolithic Linear IC LA6587T Overview Fan Motor Driver BTL Driver Single-Phase Full-Wave The LA6587T is single-phase bipolar fan motor is driven, through BTL output linear drive, at high efficiency, low power, and low sound by suppressing the reactive power. Lock protection, rotary signal (FG, 1/2FG) circuits are incorporated, which is optimum for the notebook PC, consumer equipment power supply, car audio system, CPU cooler, etc. that require high reliability and low noise. Functions • Single-phase full-wave linear drive by BTL output (gain resistance 1kΩ-360kΩ, 51dB) : No switching noise, which is optimum for equipment requiring silence, such as consumer equipment power supply, car audio system, etc. • Low-voltage operation possible, with wide operating voltage range (2.2 to 14.0V) • Low saturation output (Upper + lower saturation voltage : VOsat (total) = 1.1Vtyp, IO = 100mA) : High coil efficiency with low current drain. Additionally, IC itself generates only small heat. • Built-in lock protection and automatic reset circuits • Built-in FG & 1/2FG outputs • Built-in Hall bias (VHB = 1.5V) • Thermal protection circuit : When the large current flows due to output short-circuit and the IC chip temperature exceeds 180°C, this protective circuit suppresses the drive current to prevent burn and damage to IC. • Extra-small package (MSOP10) Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Output voltage Allowable power dissipation Output current Output withstand voltage Symbol VCC max Pd max IOUT max VOUT max Mounted on a specified board* Conditions Ratings 15 400 0.6 15 Unit V mW A V Continued on next page. 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 condition (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. 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. 92811 SY 20110922-S00002/D0606 MS PC B8-7868 No.A0603-1/5 LA6587T Continued from preceding page. Parameter RD/FG output pin output withstand voltage RD/FG output current HB output current Operating temperature Storage temperature Symbol VRD/FG max IRD/FG max IB max Topr Tstg Conditions Ratings 15 10 10 -40 to +85 -40 to +150 Unit V mA mA °C °C * Mounted on a specified board : 20mm×10mm×0.8mm3, paper phenol 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. Operating Conditions at Ta = 25°C Parameter Supply voltage Common-phase input voltage range of Hall input Symbol VCC VICM Conditions Ratings 2.2 to 14.0 0 to VCC-1.5 Unit V V Electrical Characteristics at Ta = 25°C, VCC = 12V, unless especially specified. Ratings Parameter Circuit Current Symbol ICC1 ICC2 Lock detection capacitor charge current Capacitor discharge current Capacitor charge and discharge current ratio CT charge voltage CT discharge voltage OUT output L saturation voltage OUT output H saturation voltage Hall input sensitivity FG/1/2FG output pin L voltage FG/1/2FG output pin leak current VCT1 VCT2 VOL VOH VHN VFG IFGL IO = 200mA IO = 200mA Zero peak value (including offset and hysteresis) IFG = 5mA VFG = 15V 0.15 1 0.3 30 V μA 1.3 0.3 1.5 0.5 0.25 1.0 7 1.6 0.6 0.45 1.2 15 V V V V mV ICT2 RCT RCD = ICT1/ICT2 0.11 5 0.18 6.5 0.25 8 μA ICT1 Conditions min During drive (CT = L) During lock protection (CT = H) 4 3 0.9 typ 6 4.5 1.2 max 8 6 1.5 mA mA μA Unit Truth Table INH L IN+ L H H CT L OUT1 H L off OUT2 L H off FG L H During overheat protection RD * Mode During rotation * 1/2FG provides the output equivalent to the divided FG output. No.A0603-2/5 LA6587T Package Dimensions unit : mm (typ) 3297 3.0 0.5 Pd max -- Ta Specified board : 20mm×10mm×0.8mm3 paper phenol Allowable power dissipation, Pd max -- W 10 6 0.4 3.0 4.9 0.3 1 (0.5) 0.5 5 0.2 (0.85) 0.5 0.2 0.192 0.125 0.1 1.1 max 0 -30 -10 10 30 50 70 90 110 0.08 Ambient temperature, Ta -- C SANYO : MSOP10(150mil) Pin Assignment IN+ 1/2FG HB FG IN- LA6587T VCC CT OUT2 OUT1 Top view GND No.A0603-3/5 LA6587T Block Diagram VCC AMP power supply 1.5VRG HB IN+ H OUT1 OUT2 IN- GND FG 1/2FG Control circuit Charge discharge Discharge pulse CT = 0.47 to 1μF No.A0603-4/5 LA6587T Sample Application Circuit Di *1 Cr VCC 1/2FG R1 HB *2 H INFG *4 OUT1 HB OUT2 *6 CT GND H IN*3 IN+ *5 On board element IN+ *1 : When the breakdown protective DI at reverse connection is to be used, it is necessary to insert the capacitor Cr to secure the regenerative current route. Similarly, Cr must be provided to enhance the reliability when there is no capacitor near the fan power line. *2 : To obtain Hall bias from VCC, carry out 1VCC bias as shown in the figure. Linear driving is made through voltage control of the coil by amplifying the Hall output. When the Hall element output is large, the startup performance and efficiency are improved. Adjustment of the Hall element can reduce the noise further. *3 : To obtain Hall bias from the HB pin, carry out constant-voltage bias at about 1.5V, which enables the Hall element to generate the stable Hall output satisfactory in temperature characteristics. *4 : Keep this open when not using. *5 : When the wiring from the Hall output to IC Hall input is long, noise may be carried through the wiring. In this case, insert the capacitor as shown in the figure. 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. 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 September, 2011. Specifications and information herein are subject to change without notice. PS No.A0603-5/5