OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

A1172ECGLT

P1-P3P4-P6P7-P9P10-P12
Micropower Ultra-Sensitive Hall-Effect Switch
A1172
9
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
VDD
V
S
GND
VOUTPN
A1172
VOUTPS
Outputs
0.1 μF
C
BYP
It is strongly recommended that an external bypass capacitor be
connected (in close proximity to the Hall element) between the
supply and ground of the device to reduce both external noise
and noise generated by the chopper stabilization technique. As is
shown in figure 2, a 0.1F capacitor is typical.
Extensive applications information on magnets and Hall-effect
devices is available in the following notes:
• Hall-Effect IC Applications Guide, AN27701
• Hall-Effect Devices: Gluing, Potting, Encapsulating, Lead
Welding and Lead Forming AN27703.1
• Soldering Methods for Allegro Products (SMD and Through-
Hole), AN26009
All are provided in Allegro Electronic Data Book, AMS-702,
and on the Allegro Web site, www.allegromicro.com.
Figure 2. Typical Application Circuit
Applications
Micropower Ultra-Sensitive Hall-Effect Switch
A1172
10
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Package CG, 4-Bump WLCSP
SEATING
PLANE
C
0.506
+0.049
–0.051
0.955 ±0.020
0.955 ±0.020
0.500
0.500
0.500
0.500
0.227
0.228
0.200 ±0.030
C0.05
4X
21
21
A
A
B
B
A
Hall element (not to scale)
B
A
C
C
B
Terminal #A1 mark area (substrate side)
For Reference Only, not for tooling use
Dimensions in millimeters
Exact configuration at supplier discretion within limits shown
D
D
X.160
A
B
21
PCB Layout Reference View
Reference view of typical layout for solder pads
All pads a minimum of 0.20 mm from all adjacent pads;
adjust as necessary to meet application process
requirements and PCB layout tolerances
Branding scale and appearance at supplier discretion
Standard Branding Reference View
N = Last two digits of device part number
Y = Last digit of year of manufacture
W = Week of manufacture
NN
YWW
A1
Micropower Ultra-Sensitive Hall-Effect Switch
A1172
11
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
For the latest version of this document, visit our website:
www.allegromicro.com
Copyright ©2008-2013, Allegro MicroSystems, LLC
Allegro MicroSystems, LLC reserves the right to make, from time to time, such de par tures from the detail spec i fi ca tions as may be required to
permit improvements in the per for mance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that
the information being relied upon is current.
Allegro’s products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the
failure of that life support device or system, or to affect the safety or effectiveness of that device or system.
The in for ma tion in clud ed herein is believed to be ac cu rate and reliable. How ev er, Allegro MicroSystems, LLC assumes no re spon si bil i ty for its
use; nor for any in fringe ment of patents or other rights of third parties which may result from its use.
Revision History
Revision Revision Date Description of Revision
Rev. 5 October 26, 2011 Update Selection Guide
P1-P3P4-P6P7-P9P10-P12

A1172ECGLT

Mfr. #:
Buy A1172ECGLT
Manufacturer:
Description:
MAGNETIC SWITCH OMNIPOLAR 4WLCSP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet