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Seiko Instruments Electronic Components Datasheet


S-5721A

(S-5721A / S-5722A) BIPOLAR DETECTION TYPE HALL IC



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S-5721A pdf
Rev.2.1_00
BIPOLAR DETECTION TYPE HALL IC WITH
POWER-DOWN FUNCTION
S-5721A/5722A Series
The S-5721A/5722A Series, developed using CMOS technology, is a
bipolar detection type Hall IC with a high-sensitivity that operates on a low
current.
The output voltage changes when the S-5721A/5722A Series detects the
intensity level of flux density and a polarity change. Using the S-
5721A/5722A Series with a magnet makes it possible to detect rotation in
various devices.
High-density mounting is possible by using the super-small SNT-4A
package. Also, the S-5721A/5722A Series is the most suitable for portable
devices due to the included power-down circuit.
„ Features
Built-in chopping stabilized amplifier
Detection of bipolar magnetic fields
Applicable in various devices with wide range of option
Detection logic for magnetism : Level “H” at S pole detection, level “L” at S pole detection
Output types :
CMOS output, Nch open drain output
Wide power supply voltage range : 2.4 V to 5.5 V
Low current consumption :
80 µA typ., 120 µA max. (S-5721A Series)
High speed detection :
Operating cycle 132 µs typ., 240 µs max. (S-5722A Series)
Built-in power-down circuit :
Extends battery life
In the power-down mode 1.0 µA max.
Operating temperature range :
40°C to +85°C
Small dependency magnetic characteristics against temperature
Small package :
SNT-4A
Lead-free product
www.D„ataAShpepetl4iUc.acotmions
Jog dials, wheel keys
Trackballs, mouse devices
Operation keys
Playthings, portable games
Home appliances
„ Package
Package Name
SNT-4A
Package
PF004-A
Drawing Code
Tape
Reel
PF004-A
PF004-A
Land
PF004-A
Seiko Instruments Inc.
1



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S-5721A pdf
BIPOLAR DETECTION TYPE HALL IC WITH POWER-DOWN FUNCTION
S-5721A/5722A Series
Rev.2.1_00
„ Block Diagrams
1. CMOS output product
VDD
CE
VSS
*1
Power-down circuit
*1 *1
Sleep/Awake logic
Chopping
stabilized amplifier
*1
OUT
*1
*1. Parasitic diode
2. Nch open drain output product
Figure 1
VDD
CE
www.DataSheet4U.com
VSS
*1
Power-down circuit
*1 *1
Sleep/Awake logic
Chopping
stabilized amplifier
*1. Parasitic diode
Figure 2
OUT
*1
2 Seiko Instruments Inc.



Part Number S-5721A
Description (S-5721A / S-5722A) BIPOLAR DETECTION TYPE HALL IC
Maker Seiko Instruments - Seiko Instruments
Total Page 18 Pages
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S-5721A (S-5721A / S-5722A) BIPOLAR DETECTION TYPE HALL IC S-5721A
Seiko Instruments
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S-5722A (S-5721A / S-5722A) BIPOLAR DETECTION TYPE HALL IC S-5722A
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