OMNIPOLAR SWITCH. AH3572 Datasheet

AH3572 SWITCH. Datasheet pdf. Equivalent


Diodes AH3572
Description
The AH3572 is a high voltage high sensitivity Hall Effect Omnipolar
switch IC designed for proximity, position and level sensing in
consumer home appliances, office equipment, smart home to
industrial applications. To support wide range of demanding
applications, the design has been 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 AH3572 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...
The single open drain output can be switched on with South or 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) and is held on until magnetic flux
density B is lower than the release point (BRP).
AH3572
HIGH VOLTAGE HIGH SENSITIVITY
HALL EFFECT OMNIPOLAR SWITCH
Pin Assignments
(TOP View)
GND 2
3 OUTPUT
1 VDD
SOT23
(Front View)
SIP-3 (Bulk Pack)
3. OUTPUT
2. GND
1. VDD
Features
Omnipolar Operation
High Sensitivity: BOP and BRP of ±20G and ±10G Typical
Single Open Drain Output with Over Current Limit
3.0V to 28V Operating Voltage Range
Chopper Stabilized Design Provides
Superior Temperature Stability
Minimal Switch Point Drift
Enhanced Immunity to Stress
Good RF Noise Immunity
Reverse Blocking Diode
Zener Clamp on Supply and Output Pins
-40C to +125C Operating Temperature
ESD: HBM 6kV
Industry Standard SOT23 and SIP-3 (Ammo Pack), SIP-3 (Bulk
Pack) Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
Position and Proximity Sensing in Consumer Home Appliances,
Building Automation, Office Equipments and Industrial Applications
Open and Close Detect
Position Detect
Level Detect
Flow Meters
Contact-Less Switches
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ 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.
AH3572
Document number: DS40412 Rev. 1 - 2
1 of 14
www.diodes.com
February 2018
© Diodes Incorporated


AH3572 Datasheet
Recommendation AH3572 Datasheet
Part AH3572
Description HIGH VOLTAGE HIGH SENSITIVITY HALL EFFECT OMNIPOLAR SWITCH
Feature AH3572; NEW PRODUCT Description The AH3572 is a high voltage high sensitivity Hall Effect Omnipolar switch .
Manufacture Diodes
Datasheet
Download AH3572 Datasheet




Diodes AH3572
Typical Applications Circuit
CIN
3.0V to 28V
VDD
AH3572
RL
OUTPUT
GND
AH3572
Note:
4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF to 100nF.
RL is the pull-up resistor.
Pin Descriptions
Package: SOT23 and SIP-3 (Ammo Pack), SIP-3 (Bulk Pack)
Pin Number
1
2
3
Pin Name
VDD
GND
OUTPUT
Function
Power Supply Input
Ground
Output Pin
Functional Block Diagram
VDD
Power
Switch
To All Subcircuits
Amp
Amp
Control
OUTPUT
Current
Limit
GND
AH3572
Document number: DS40412 Rev. 1 - 2
2 of 14
www.diodes.com
February 2018
© Diodes Incorporated



Diodes AH3572
AH3572
Absolute Maximum Ratings (Notes 5 & 6) (@TA = +25°C, unless otherwise specified.)
Symbol
VDD
VDDR
VOUT_MAX
IOUT
IOUT_R
B
Supply Voltage (Note 6)
Reverse Supply Voltage (Note 6)
Output Off Voltage (Note 6)
Continuous Output Current
Reverse Output Current
Magnetic Flux Density
Characteristic
PD Package Power Dissipation
TS
TJ
ESD HBM
Storage Temperature Range
Maximum Junction Temperature
Electro Static Discharge Withstand - Human Body Model
SIP-3 (Ammo Pack),
SIP-3 (Bulk Pack)
SOT23
Value
32
-32
32
60
-50
Unlimited
550
230
-65 to +165
+150
6
Unit
V
V
V
mA
mA
mW
C
C
kV
Notes:
5. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be
affected by exposure to absolute maximum rating conditions for extended periods of time.
6. The absolute maximum VDD of 32V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to
operate the device at the absolute maximum rated conditions for any period of time.
Recommended Operating Conditions (@TA = -40°C to +125°C, unless otherwise specified.)
Symbol
VDD
TA
Parameter
Supply Voltage
Operating Temperature Range
Operating
Operating
Condition
Rating
3.0 to 28
-40 to +125
Unit
V
C
Electrical Characteristics (Notes 7 & 8) (@TA = -40°C to +125°C, VDD = 3V to 28V, unless otherwise specified.)
Symbol
Parameter
Condition
Min Typ Max Unit
VOUT_ON
ILKG
Output ON Voltage
Output Leakage Current
(When output is off)
IOUT = 20mA, B > BOP
VOUT = 28V, B < BRP, Output off
-
0.2 0.4
V
-
<0.1
10
µA
IDD
IDD_R
tP_ON
fC
tD
Supply Current
Reverse Battery Current
Device Power-On Time (Start-up time)
Chopping Frequency
Response Time Delay
(Time from magnetic threshold
reached to the start of the output rise
or fall)
Output open, TA = +25C
Output open, TA = -40C to +125C
VDD = -18V, TA = -40C to +125C
VDD = -28V, TA = -40C to +125C
VDD >= 3V, B > BOP (Note 7)
-
(Note 9)
- 3 3.5 mA
- - 4 mA
-
-0.01
1
mA
-
-0.01 1.5
mA
- 10 - µs
- 800 - kHz
- 3.75 -
µs
Output Rising Time
tR (External pull-up resistor RL and load RL = 1kΩ, CL = 20pF
capacitance dependent)
- 0.2 1 µs
Output Falling Time
tF
(Internal switch resistance and load
RL = 1kΩ, CL = 20pF
capacitance dependent)
- 0.1 1 µs
IOCL Output Current Limit
VZ Zener Clamp Voltage
B > BOP, (Note 10 )
IDD = 5mA
30 - 55 mA
28 - - V
Notes:
7. When power is initially turned on, VDD must be within its correct operating range (3.0V to 28V) to guarantee the output sampling. The output state is valid
after the start-up time of 10µs typical from the operating voltage reaching 3V.
8. Typical values are defined at TA = +25C, VDD = 12V. Maximum and minimum values over the operating temperature range is not tested in production but
guaranteed by design, process control and characterization.
9. Guaranteed by design, process control and characterization, not tested in production.
10. The device will limit the output current IOUT to current limit of IOCL.
AH3572
Document number: DS40412 Rev. 1 - 2
3 of 14
www.diodes.com
February 2018
© Diodes Incorporated







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)