ATS177 Datasheet, PDF (1/8 Pages) Anachip Corp – Single Output Hall Effect Latch

Features
• 3.5V to 20V DC operation voltage
• Temperature compensation
• Wide operating voltage range
• Open-Collector pre-driver
• 25mA maximum sinking output current.
• Reverse polarity protection
• Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
• Package: SIP-3L
ATS177
SINGLE OUTPUT HALL EFFECT LATCH
General Description
ATS177 is an integrated Hall effect latched sensor designed for
electronic commutation of brush-less 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 open-collector output. 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).
Applications
• Brush-less DC Motor
• Brush-less DC Fan
• Revolution counting
• Speed measurement
Ordering Information
ATS177 - X X X - X
Package
P:SIP-3L
Lead
L : Lead Free
Packing
Magnetic
Characteristics
-B : Bulk (Note 3)
A or B
-A : Ammo Box (Note 4)
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
ATS177-P
Lead-free
Package
Code
P
Packaging
(Note 2)
SIP-3L
Tube/Bulk
Quantity Part Number
Suffix
1000
-B
7” Tape and Reel
Quantity Part Number
Suffix
NA
NA
Ammo Box
Quantity Part Number
Suffix
4000/Box
-A
Note:
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
3. Bulk is for SIP-3L Straight Lead.
4. Ammo Box is for SIP-3L Spread Lead.
ATS177 Rev. 1
1 of 8
www.diodes.com
JANUARY 2007
© Diodes Incorporated