ISSUED DATE :2004/10/07 REVISED DATE : G177 Single Output Hall Effect Latch IC Description The G177 is an integrated Hall effect latched sensor with output pull-high resistor driver designed for electronic commutation of brushless DC motor applications and contactless switches. 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 output driver with pull-high resistor. 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). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high). G177 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 3 pin SIP packages. Features * Wide range of supply voltage: 3.5V to 28V. * Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range. * High sensitivity with a small magnet. * TTL and MOS ICs directly drivable by output. * Build in protection diode for chip reverse power connecting. Application 1)Brushless DC Motor 5)Revolution Counting 2)Brushless DC Fan 6)Speed Measurement 3)Position Sensors 7)Keyboard Switches 4)Rotation Sensors 8)Microswitches Package Dimensions REF. A A1 Millimeter Min. Max. 1.245 1.753 0.750REF. REF. Millimeter Min. Max. D 3.962 4.216 E 2.870 3.124 13.60 15.60 b 0.330 0.432 L b1 0.406 0.508 e 1.27 REF. 1/5 ISSUED DATE :2004/10/07 REVISED DATE : Functional Block Diagrams VCC VCC 1 1 27K REG. HALL SENSOR 3 OUTPUT(DO) 2 Vss Pin Descriptions Name Vcc Vss DO P/I/O P P O Pin# 1 2 3 Description Positive power supply Ground Digital output Absolute Maximum Ratings at Ta = 25 Parameter Symbol Supply Voltage VALUE Unit Vcc 28V V VRCC -28V V Magnetic flux density B Unlimited Output OFF Voltage Vce 35 V Output ON Current mA Reverse Vcc Polarity Voltage IC Continuous 25 Operating Temperature Range Storage Temperature Range Ta -20~100 Ts -65~150 Package Power Dissipation PD 250 Maximum Junction Temp. Tj 175 Electrical Characteristics (TA=+25 Parameter SYMBOL Supply Voltage VCC Low output voltage VOL High output voltage VOH Output Leakage Current Output Short-circuit Current Supply Current ICex -IOS ICC tr Output Rise Time Output Falling Time tf mW ) Test Conditions Min Typ. Max. Unit 3.5 - 28 V VCC=16V,Io=12mA,B=130 Gauss - - 0.4 V VCC=3.6V,Io=12mA,B=130 Gauss - - 0.4 V VCC=16V, Io=-30 A,B=-130 Gauss 14.6 - - V VCC=3.6V,Io=-30 A,B=-130 Gauss VCC=16V,Vcc=16V VCC=16V,Vo=0V,B=-130 Gauss VCC=24V,Output Open VCC=16V,RL=820 CL=20pf 2.2 0.4 - <0.1 5 0.3 10 0.9 10 1.5 V uA mA mA us - 0.3 1.5 us - VCC=16V,RL=820 CL=20pf 2/5 ISSUED DATE :2004/10/07 REVISED DATE : Test Circuit 16V Vout(DO) RL RL=820 Ohm CL=20 pF CL Power dissipation VS. Environment Temperature Ta( ) 25 50 60 70 80 85 90 95 100 105 110 115 Pd(mW) 275 262 257 252 242 237 232 227 222 212 202 192 125 182 P o w e r D is s ip a t io n C u r v e P d (m W ) 300 250 200 150 100 0 25 50 75 100 125 150 T a ( °C ) Electrical Characteristics Curves Current capacity vs. supply voltage for DO pin Icc v.s Vcc at Different Temp 3/5 ISSUED DATE :2004/10/07 REVISED DATE : Magnetic Characteristics Characteristic Operate Point Release Point Hysteresis Symbol Ta=-0 Ta=+25 Max Min Min to +70 Unit Max BIN A Bop 0 70 0 70 Gauss BIN B - 100 - 100 Gauss BIN C Bop Bop - 130 - 130 Gauss BIN A Brp -70 0 -70 0 Gauss BIN B Brp -100 - -100 - Gauss BIN C Brp -130 - -130 - Gauss BIN A Bhys 40 110 20 140 Gauss BIN B Bhys 50 150 30 200 Gauss BIN C Bhys 60 160 40 220 Gauss Hysteresis Characteristics Output Voltage in Volts Bin A DO 12 OFF OP 10 8 6 4 2 RP -200 -100 0 ON 100 200 Magnetic Flux Density in Gauss Output Voltage in Volts Bin B DO 12 OFF OP 10 8 6 4 2 RP -200 -100 0 ON 100 200 Magnetic Flux Density in Gauss 4/5 ISSUED DATE :2004/10/07 REVISED DATE : Output Voltage in Volts Bin C DO 12 OFF OP 10 8 6 4 2 RP -200 -100 0 ON 100 200 Magnetic Flux Density in Gauss Package Information Active Area Depth Package Sensor Location Max:2.13mm Min:1.87mm 0.51mm NOM Max:1.53mm Min:1.27mm BRANDED SURFACE 1 2 3 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