G266

ISSUED DATE :2004/11/03 REVISED DATE : G266 Complementary Output Hall Effect Latched Sink Driver IC Description The G266 is an integrated Hall sensors with output drivers designed for electronic commutation of brushless DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and complementary open-collector drivers for sinking large current loads. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density larger than threshold Bop, DO is turned on (low) and DOB is turned off (high). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off and DOB turned on. G266 is rated for operation over temperature range from -20 : to 100 : and voltage range from 3.5V to 28V. The devices are available in low cost die forms or rugged 4 pin SIP packages. *On-chip Hall sensor IC with two different sensitivity and hysteresis settings for G266 *Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range. *High output sinking capability up to 300mA for driving large load. *Lower current change rate reduces the peak output voltages during switching. *Build in protection diode for chip reverse power connecting. *Package: SIP-4L. Features Application 1)Brushless DC Motor 2)Brushless DC Fan 3)Revolution Counting 4)Speed Measurement Package Dimensions REF. A A1 b b1 Millimeter Min. 1.295 0.610 0.330 0.406 0.432 0.508 Max. 1.803 REF. D E L e Millimeter Min. 5.105 3.531 14 1.27REF Max. 5.359 3.785 16 1/5 ISSUED DATE :2004/11/03 REVISED DATE : Functional Block Diagrams VCC 1 2 REG. OUTPUT(DO) HALL SENSOR 3 OUTPUT(DOB) 4 VSS Pin Descriptions Name Vcc DO DOB Vss P/I/O P O O P Pin# 1 2 3 4 Description Positive Power supply Output Pin Output Pin Ground Absolute Maximum Ratings at Ta = 25 Parameter Supply Voltage Reverse Vcc Polarity Voltage Magnetic flux density Output OFF Voltage Continuous Output ON Current Hold Peak(Start UP) Operating Temperature Range Storage Temperature Range Package Power Dissipation Maximum Junction Temp. N ote 1 Output Zener protection voltage. Symbol Vcc VRCC B Vce IC Ta Ts PD Tj VALUE 28V -35V Unlimited 50(Note1) 300 400 700 -20~100 -65~150 550 175 Unit V V V mA : : mW : Electrical Characteristics (Ta=+25 , Vcc=4.0V to 20V) Parameter Low Supply Voltage Supply Voltage Symbol Test Conditions Vce Vcc=3.5V, IL=100mA Vcc ICex ICC Tr Tf t Vce=14V, Vcc=14V Vcc=20V, Output Open Vcc=14V, RL=820 , CL=20pf Vcc=14V, RL=820 , CL=20pf Vcc=14V, RL=820 , CL=20pf Min 3.5 - Typ 0.4 0.6 200mA 2) With FG output Remark: C1, C2: Capacitor 2.2 F~4.7 F ( optional) Remark: C1: Capacitor 0.1 F~1 F R1: Resister 1K Package Information Active Area Depth Package Sensor Location 1.75mm Top View Marking Site 0.7mm 1.35mm Top View 1 2 3 4 Tolerance: +/- 0.05mm Important Notice: All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of GTM. GTM reserves the right to make changes to its products without notice. GTM semiconductor products are not warranted to be suitable for use in life-support Applications, or systems. GTM assumes no liability for any consequence of customer product design, infringement of patents, or application assistance. Head Office And Factory: Taiwan: No. 17-1 Tatung Rd. Fu Kou Hsin-Chu Industrial Park, Hsin-Chu, Taiwan, R. O. C. TEL : 886-3-597-7061 FAX : 886-3-597-9220, 597-0785 China: (201203) No.255, Jang-Jiang Tsai-Lueng RD. , Pu-Dung-Hsin District, Shang-Hai City, China TEL : 86-21-5895-7671 ~ 4 FAX : 86-21-38950165 5/5