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G177

Part Number	G177
Manufacturer	GTM
Description	Single Output Hall Effect Latch IC
Published	Sep 18, 2007
Detailed Description	www.DataSheet4U.com ISSUED DATE :2004/10/07 REVISED DATE : G177 Description Single Output Hall Effect Latch IC The G1...
Datasheet	G177 PDF File

Overview

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 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 R...

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