DC Brushless Motor Driver IC PT-3086-C Frequency Generation Output Applications Package: SOT-26 Double coils DC brushless motor. DC 3V ~ 18V. Motor lock protection and automatic restart Frequency Generation output Low power consumption and high driving efficiency 1 GND 2 O1 3 P6-XXX Features O2 H E SOT-26 6 FG 5 VDD 4 HIN b e D A A2 A1 C L Pin Description Input Devices SYMBOLS Hall IC Specifications DIMENSIONS IN MILLIMETERS(mm) MIN NOM MAX A 1.00 1.10 1.30 A1 0.00 - 0.10 A2 0.70 0.80 0.90 b 0.35 0.40 0.50 C 0.10 0.15 0.25 D 2.70 2.90 3.10 E 1.60 1.80 2.00 H 2.60 2.8 3.00 e 1.7 1.9 2.1 L 0.20 - - Name Pin Description Type O2 1 Second output pin GND 2 DC ground O P O1 3 First output pin O Hin 4 Hall IC signal input I VDD 5 DC power supply P FG 6 Frequency generation O O: Output, I: Input, P: Power Absolute Maximum Ratings (Ta = 25 C) Symbol Parameter Maximum supply voltage V Conditions max DD Ratings Units 18 V mW Allowable power dissipation Pd 350* Operating temperature Ta -30 ~ +100 Storage temperature Ts -55 ~ +150 C Output current I 0ut Continoue 400 mA Peak 650 mA O C O * On 50mm x 50mm x 1.6mm glass epoxy board Any and all PROLIFIC 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 PROLIFIC representative nearest you before using any PROLIFIC products described or contained herein in such applications. PROLIFIC 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 PROLIFIC products described or contained herein. PROLIFIC TECHNOLOGY INC. 7F, No.48, Sec.3, Nan Kang Rd., Nan Kang, Taipei, 115, Taiwan Ver.1.5 -1- Date:Feb. 2002 PT-3086-C Electrical Characteristics Characteristic Symbol Supply Voltage VDD Test Condition Min. Typ. Max. Units 3 18 V Output Sink Voltage VDS(ON) RL=30@12V 0.6 0.66 0.88 V Output Breakdown Voltage VBV(ON) 18 22 30 V 10 mA Supply Current IDD Output open@12V Driving Current IO RL=25@12V(VDS(ON)=0.8V) 435 440 450 mA RL=30@12V 370 378 380 mA RL=40@12V 283 287 288 mA RL=50@12V 230 231 232 mA RL=100@12V 117 118 118 mA RL=200@12V 59.4 59.5 59.6 mA FG flow-in Current IFG Pull-high resistor is 470ohm@12V 25 FG Supply Voltage mA 12 Hin Input Voltage Hin Input Current 30 V High VDD-1.2 VDD V Low GND 0.3 V IIN Hin=12V 85 uA RL: DC impedance of inductor Truth Table Ver.1.5 Hin O1 O2 H GND VDD L VDD GND -2- Date:Feb. 2002 PT-3086-C Frequency Generation This driver IC outputs the FG signals for some special applications. For FG application, the driver IC will generate square wave to indicate the motor rotation frequency. According to the motor internal structure, the pole number is different for different motors. The FG will output the real motor's rotation frequency by dividing the pole number (must be adjusted under IC process). Lock Protection In order to protect the motor, the driver IC will stop to drive the coil when the motor is locked over 0.4 seconds. Then, it restarts to drive the motor after 2.8 seconds. Figure 1 shows the timing diagram between the hall input signal and driver's output state. lock Lock detected rotate 0.4sec Hin driving 0.4sec On Driver 2.8sec shutdown Off FG t Fig 2. Lock Protection The driver IC architecture block diagram is shown in Fig. 2 Vcc Fan Lock Detection Lock Timing Control O1 O2 Hin Driver Timing Control Driver FG FG Gnd Fig. 2. Driver IC Architecture Ver.1.5 -3- Date:Feb. 2002 PT-3086-C Application circuits Double coil 12V R0 R1 10K Hall IC 4 L1 R2 L2 5 Vcc O1 Hin dc 1 O2 3 Gnd FG 6 2 loading FG Z1 Z2 R1 : depend on Hall IC Spec. R2 : > 470ohm Z1,Z2 :18V Zener diode Note1 : Z1, Z2 is optional. If the applicated coil generate too large count emf (> 30V), the Z1 and Z2 must be added. Vz=18V will be recommended. Note2 : Z1, Z2 can be replaced by C1 and C2 capacitor 1uF~2.2uF/50V Note3 : R0=1K is recommended@12V. Specifications of any and all PROLIFIC 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. PROLIFIC Technology Inc. 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 and all PROLIFIC products described or contained herein fall under strategic products (including services) controlled under the Foreign Exchange and Foreign Trade Control Law of Taiwan, such products must not be exported with our obtaining export license from the Ministry of international Trade and Industry 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 PROLIFIC Technology Inc. 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 PROLIFIC 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. PROLIFIC 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. Specifications and information herein are subject to change without notice. Ver.1.5 -4- Date:Feb. 2002