|
|
PDF AH3774 Data sheet ( Hoja de datos )
| Número de pieza | AH3774 | |
| Descripción | HIGH-VOLTAGE HIGH-SENSITIVITY HALL EFFECT LATCH | |
| Fabricantes | Diodes | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AH3774 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
|
No Preview Available !
AH3774
HIGH-VOLTAGE HIGH-SENSITIVITY HALL EFFECT LATCH
Description
The AH3774 is a high-voltage, high-sensitivity Hall Effect Latch IC
designed for commutation of brushless DC motor, flow meters, linear
encoders and position sensors in industrial and consumer home
appliance and personal care applications. To support a wide range of
demanding applications, the design is optimized to operate over the
supply range of 3.0V to 28V. With chopper stabilized architecture and
an internal bandgap regulator to provide temperature compensated
supply for internal circuits, the AH3774 provides a reliable solution
over the whole operating range. For robustness and protection, the
device has a reverse blocking diode with a Zener clamp on the
supply. The output has an over current limit and a Zener clamp.
Pin Assignments
(Top View)
GND 2
3 OUTPUT
1 VDD
SC59 and SOT23
The single open-drain output can be switched on with South Pole of
sufficient strength and switched off with North Pole of sufficient
strength. When the magnetic flux density (B) perpendicular to the
package is larger than the operate point (Bop) the output is switched
on (pulled low). The output is held latched until magnetic flux density
reverses and becomes lower than the release point (Brp).
The magnetic operating and release polarity is opposite for SOT23
and SC59 packages. SOT23 and SIP-3 packages will require South
Pole to the part marking side to operate while SC59 will require South
Pole to the non-part marking side.
(Top View)
SIP-3
3. OUTPUT
2. GND
1. VDD
Features
• Bipolar Latch (South Pole: On, North Pole: Off)
• 3.0V to 28V Operating Voltage Range
• High Sensitivity: Bop and Brp of +40G and -40G Typical
• Single Open Drain Output with Over Current Limit
• Chopper Stabilized Design Provides
• Superior Temperature Stability
Minimal Switch Point Drift
Enhanced Immunity to Stress
• Good RF Noise Immunity
• Reverse Blocking Diode and Zener Clamp on Supply
• -40°C to +125°C Operating Temperature
• ESD (HBM): 6kV
• Industry Standard SC59, SOT23 and SIP-3 Packages
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
Applications
• Brushless DC Motor Commutation
• Revolution Per Minute (RPM) Measurement
• Flow Meters
• Angular and Linear Encoder and Position Sensors
• Contact-less Commutation, Speed Measurement and Angular
Position Sensing/Indexing in Consumer Home Appliances, Office
Equipments and Industrial Applications
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
AH3774
Document number: DS37899 Rev. 1 - 2
1 of 14
www.diodes.com
September 2015
© Diodes Incorporated
1 page  
Typical Operating Characteristics
Magnetic Operating Switch Points – Bop and Brp
120.0
100.0
TA = +25oC
80.0
60.0
40.0
20.0
0.0
-20.0
-40.0
-60.0
-80.0
-100.0
-120.0
2468
Hyst
Bop
Brp
10 12 14 16 18 20 22 24 26 28 30
Supply Voltage (V)
Switch Points Bop and Brp vs Supply Voltage
AH3774
120.0
100.0
VDD = 3V
80.0
60.0
40.0
20.0
0.0
-20.0
-40.0
-60.0
-80.0
-100.0
-50
-25
0
Hyst
Bop
Brp
25 50 75 100 125 150
Temperature (oC)
Switch Points Bop and Brp vs Temperature
120.0 VDD = 12V
100.0
80.0
60.0
40.0
20.0
0.0
-20.0
-40.0
-60.0
-80.0
-100.0
-50
-25
0
Hyst
Bop
Brp
25 50 75 100 125 150
Temperature (oC)
Switch Points Bop and Brp vs Temperature
120.0 VDD = 28V
100.0
80.0
60.0
40.0
20.0
0.0
-20.0
-40.0
-60.0
-80.0
-100.0
-50
-25
0
Hyst
Bop
Brp
25 50 75 100 125 150
Temperature (oC)
Switch Points Bop and Brp vs Temperature
Supply Current
5.0
TA = +25 C
4.0
3.0
2.0
1.0
0.0
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Supply Voltage (V)
Supply Current vs Supply Voltage
4.0
3.8
3.5
28V
3.3
3.0
2.8
3V 12V
2.5
2.3
2.0
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
Temperature (oC)
Supply Current vs Temperature
AH3774
Document number: DS37899 Rev. 1 - 2
5 of 14
www.diodes.com
September 2015
© Diodes Incorporated
5 Page 
AH3774
Package Outline Dimensions (Cont.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
(3) Package Type: SIP-3 Bulk
a1
a2
B
P
A
EF
L
J
C
N
D
GH
a4
SIP-3 (Bulk)
Dim Min
Max
A 3.9 4.3
a1 5° Typ
a2 5°Typ
a3 45° Typ
a4 3°Typ
B 2.8 3.2
C 1.40 1.60
D 0.33 0.432
E 0.40 0.508
F 0 0.2
G 1.24 1.30
H 2.51 2.57
J 0.35 0.43
L 14.0 15.0
N 0.63 0.84
P 1.55
—
All Dimensions in mm
PART
MARKING
SURFACE
1.90/2.10
Min/Max
0.63/0.84
0.27/0.48
1.05/1.25
Hall Sensor
PART
MARKING
SURFACE
123
Sensor Location
AH3774
Document number: DS37899 Rev. 1 - 2
11 of 14
www.diodes.com
September 2015
© Diodes Incorporated
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet AH3774.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AH3772 | HIGH-SENSITIVITY HALL EFFECT LATCH | Diodes |
| AH3774 | HIGH-VOLTAGE HIGH-SENSITIVITY HALL EFFECT LATCH | Diodes |
| AH3775 | HIGH-VOLTAGE MEDIUM-SENSITIVITY HALL EFFECT LATCH | Diodes |
| AH3776 | HIGH-SENSITIVITY HALL EFFECT LATCH | Diodes |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |