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HALL IC
S-5711A Series
The S-5711A Series, developed by CMOS technology, is a Hall IC with a
high-sensitivity and operates on a low current.
The output voltage changes when the S-5711A Series detects the intensity
level of flux density. Using the S-5711A Series with a magnet makes it
possible to detect the open/close state in various devices.
High-density mounting is possible by using the super-small SNT-4A, SOT-
23-3 packages. Also, the S-5711A Series is the most suitable for portable
devices due to the low current consumption.
„ Features
Built-in chopping stabilized amplifier
Applicable in various devices with wide range of option
: Detection of both poles, south pole or north pole*1
: Active “L”, active “H” *1
: Nch open drain output, CMOS output
Wide power supply voltage range : 2.4 V to 5.5 V
Low current consumption :
5.0 µA typ., 8.0 µA max.
Range of operation temperature: 40°C to +85°C
Small magnetic characteristics against temperature dependency
Small package :
SNT-4A, SOT23-3
Lead-free product
*1. Selectable by option
Please contact our sales office for options other than those specified in “„ Product Name Structure”, “2. Product
name list”.
„ Applications
Cellular phones (flip type, slide type, etc.)
Laptop PCs
Digital video cameras
Playthings, portable games
Home appliances
„ Packages
Package Name
SNT-4A
SOT-23-3
Package
PF004-A
MP003-C
Drawing Code
Tape
Reel
PF004-A
PF004-A
MP003-C
MP003-Z
Land
PF004-A
Seiko Instruments Inc.
1

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S-5711A Series
„ Block Diagrams
1. Nch open drain output product
VDD
*1
VSS
*1. Parasitic diode
2. CMOS output product
VDD
*1
VSS
*1. Parasitic diode
Sleep/Awake logic
Chopping
stabilized amplifier
Figure 1
Sleep/Awake logic
Chopping
stabilized amplifier
Figure 2
Rev.2.4_00
OUT
*1
*1
OUT
*1
2 Seiko Instruments Inc.

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Rev.2.4_00
HALL IC
S-5711A Series
„ Product Name Structure
1. Product name
(1) SNT-4A
S-5711 A x x x – I4T1 G
Package name (abbreviation) and packing specifications*1
I4T1 : SNT-4A, Tape
Detection logic for magnetism
L : Active “L”
H : Active “H”*2
Pole detection
D : Detection of both poles
S : Detection of south pole
N : Detection of north pole*2
Output form
N : Nch open drain output
C : CMOS output
*1. Refer to the tape specifications at the end of this book.
*2. Selectable by option
(2) SOT-23-3
S-5711 A x x x – M3T1 S
Package name (abbreviation) and packing specifications*1
M3T1 : SOT-23-3, Tape
Detection logic for magnetism
L : Active “L”
H : Active “H”
Pole detection
D : Detection of both poles
S : Detection of south pole
N : Detection of north pole*2
Output form
N : Nch open drain output
C : CMOS output
*1. Refer to the tape specifications at the end of this book.
*2. Selectable by option
2. Product name list
Table 1
Output Form
Pole Detection Detection Logic for Magnetism
SNT-4A
Nch open drain output Both poles
Active “L”
S-5711ANDL-I4T1G
CMOS output
Both poles
Active “L”
S-5711ACDL-I4T1G
CMOS output
Both poles
Nch open drain output South pole
Active “H”
Active “L”
S-5711ANSL-I4T1G
CMOS output
South pole
Active “L”
S-5711ACSL-I4T1G
Remark Please contact our sales office for options other than those specified above.
SOT-23-3
S-5711ANDL-M3T1S
S-5711ACDL-M3T1S
S-5711ACDH-M3T1S
S-5711ANSL-M3T1S
S-5711ACSL-M3T1S
Seiko Instruments Inc.
3