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G266

GTM
Part Number G266
Manufacturer GTM
Description Complementary Output Hall Effect Latched Sink Driver IC
Published Sep 18, 2007
Detailed Description www.DataSheet4U.com ISSUED DATE :2004/11/03 REVISED DATE : G266 Complementary Output Hall Effect Latched Sink Driver I...
Datasheet PDF File G266 PDF File

G266
G266

Overview
www.
DataSheet4U.
com 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...


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