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G266 Datasheet(PDF) 1 Page - GTM CORPORATION

Part # G266
Description  Complementary Output Hall Effect Latched Sink Driver IC
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Manufacturer  GTM [GTM CORPORATION]
Direct Link  http://www.gtm.com.tw
Logo GTM - GTM CORPORATION

G266 Datasheet(HTML) 1 Page - GTM CORPORATION

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ISSUED DATE :2004/11/03
REVISED DATE :
G
G 226666
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O u
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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 1
:
00 : and voltage range from 3.5V to 28V. The devices
are available in low cost die forms or rugged 4 pin SIP packages.
Features
*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.
Application
1)Brushless DC Motor
2)Brushless DC Fan
3)Revolution Counting
4)Speed Measurement
Package Dimensions
Millimeter
Millimeter
REF.
Min.
Max.
REF.
Min.
Max.
A
1.295
1.803
D
5.105
5.359
A1
0.610
E
3.531
3.785
b
0.330
0.432
L
14
16
b1
0.406
0.508
e
1.27REF


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