Maker : GTM
Part No. : G177

  Datasheet PDF : G177.pdf
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Shortcut : G170EG01_V0  G170EG01_V1  G1735  G1736  G1737  G1738  G1740  G1746  G1747  G177 

Product Information

www.DataSheet4U.com ISSUED DATE :2004/10/07 REVISED DATE : G177 Description Single Output Hall Effect Latch IC 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 2)Brushless DC Fan 3)Position Sensors 4)Rotation Sensors 5)Revolution Counting 6)Speed Measurement 7)Keyboard Switches 8)Microswitches Package Dimensions REF. A A1 b b1 Millimeter Min. 1.245 Max. 1.753 REF. D E L e Millimeter Min. 3.962 2.870 13.60 Max. 4.216 3.124 15.60 0.750REF. 0.330 0.406 0.432 0.508 1.27 REF. 1/5 ISSUED DATE :2004/10/07 REVISED DATE : Functional Block Diagrams VCC 1 VCC 1 REG. 27K Ł 3 OUTPUT(DO) HALL SENSOR 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 VALUE Unit Supply Voltage Reverse Vcc Polarity Voltage Magnetic flux density Output OFF Voltage Output ON Current Operating Temperature Range Storage Temperature Range Package Power Dissipation Maximum Junction Temp. Vcc VRCC B Vce IC Continuous Ta Ts PD Tj ) Test Conditions SYMBOL 28V -28V Unlimited 35 25 -20~100 -65~150 250 175 Min Typ. V V V mA : : mW : Max. Unit Electrical Characteristics (TA=+25 : Parameter Supply Voltage Low output voltage High output voltage Output Leakage Current Output Short-circuit Current Supply Current Output Rise Time Output Falling Time VCC VOL VOH ICex -IOS ICC tr tf VCC=16V,Io=12mA,B=130 Gauss VCC=3.6V,Io=12mA,B=130 Gauss VCC=16V, Io=-30 A,B=-130 Gauss 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 VCC=16V,RL=820 CL=20pf 3.5 14.6 2.2 0.4 - <0.1 5 0.3 0.3 28 0.4 0.4 10 0.9 10 1.5 1.5 V V V V V uA mA mA us us 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 P d (m W ) 300 250 200 150 100 0 25 50 75 T a ( °C ) 100 125 150 P o w e r D is s ip a t io n C u r v e 125 182 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 BIN A Operate Point BIN B BIN C BIN A Release Point BIN B BIN C BIN A Hysteresis BIN B BIN C Symbol Bop Bop Bop Brp Brp Brp Bhys Bhys Bhys Min 0 -70 -100 -130 40 50 60 Ta=+25 : Max 70 100 130 0 110 150 160 Ta=-0 : to +70 : Min 0 -70 -100 -130 20 30 40 Max 70 100 130 0 140 200 220 Unit Gauss Gauss Gauss Gauss Gauss Gauss Gauss Gauss Gauss Hysteresis Characteristics Bin A DO Output Voltage in Volts 12 10 8 6 4 RP -200 -100 0 2 100 ON 200 OFF OP Magneti...

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