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AH342 Datasheet

ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH

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AH342 pdf
Pb
AH342
ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH
Description
The AH342 is a bipolar latching hall IC with a pair of complementary
push/pull outputs. A dual hall element is used to offset stress induced
noise and drift. The robust outputs are capable of sourcing up to
7.4mA and sinking up to 4.4mA. The device contains inherent reverse
polarity protection up to the full power supply range.
Pin Assignments
( Top View )
342 1 : Vcc
2 : DO
3 : DOB
4 : Vss
12 3 4
SIP-4L
Features
Digital dual complementary sink/source outputs
Reverse Voltage Polarity protection for full supply range
High output current capability
Low profile packages: SIP-4L
Package: SIP-4L
Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Applications
Conveyors
Motor Control
Power Sensing
Linear or Rotary Motion Detection
RPM Sensing
Notes:
1. No purposefully added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
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.
Pin Descriptions
Pin Name
VCC
DO
DOB
Vss
P/I/O
P
O
O
P
Pin #
1
2
3
4
Description
Power Supply Input
Output Pin
Output Pin
Ground
AH342
Document number: DS30886 Rev. 5 - 2
1 of 7
www.diodes.com
July 2014
© Diodes Incorporated



Diodes Semiconductor Electronic Components Datasheet

AH342 Datasheet

ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH

No Preview Available !

AH342 pdf
Functional Block Diagram
OUTPUT AMP
AH342
7.5V
660
510
SOURCE
IO
SINK
Voltage
Regulator
Hall
Sensor
Amp
and
Trigger
Interface
Circuit
Output
Amp
#1
IO1
Output
Amp
#2
IO2
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) (Note 3)
Symbol
VCC
Vout
Ic
B
TST
Parameter
Supply Voltage
Voltage Externally Applied to Output
Output Current
Magnetic Flux Density
Storage Temperature Range
Rating
±28
-1.2 to +5
±10
Unlimited
-40 to +150
Unit
V
V
mA
Gauss
°C
Note:
3. Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device. However, the electrical and
magnetic characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached nor will the
device necessarily operate at absolute maximum rating.
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol
VCC
TA
Characteristic
Supply Voltage
Operating Ambient Temperature (Note 4)
Note:
4. Shall not exceed PD and Safety Operation Area.
Conditions
Operating
Operating
Min
4.5
-40
Max
28
+125
Unit
V
°C
AH342
Document number: DS30886 Rev. 5 - 2
2 of 7
www.diodes.com
July 2014
© Diodes Incorporated



Diodes Semiconductor Electronic Components Datasheet

AH342 Datasheet

ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH

No Preview Available !

AH342 pdf
AH342
Electrical Characteristics (@TA = +25°C, unless otherwise specified.) (Notes 5,6)
Symbol
Characteristic
ICC Supply Current
Output Voltage
#1 Sourcing
VOUT
#2 Sinking
#1 Sinking
#2 Sourcing
ILeak(sink)
Leakage (sink)
Output Current
IOUT
#1 Sourcing
#2 Sinking
#1 Sinking
#2 Sourcing
Output Switching Time
tf Fall Time
tr Rise Time
Conditions
28V±0.5% supply
24°C ± 2°C
Min Typ Max
4 4.5 6
Switch magnetically operated:
No load 28V±0.5% supply.
Switch magnetically released:
No load 28V±0.5% supply.
6.0 7.0 7.5
0 0.1 0.2
0 0.1 0.2
6.0 7.0 7.5
Apply voltage 0.2V greater than
measured output source voltage measure
current, no load 28V±0.5% supply.
-
- 1.0
Apply 2V to output and measure current. 5.5 7.4 8.0
Switch magnetically operated, no load
2.8 3.4 4.7
28V±0.5%.
Apply 2V to output and measure current.
2.8
3.4
4.7
Switch magnetically released, no load
28V±0.5%.
5.5 7.4 8.0
90% to 10%; no load 28V±0.5% Supply
-
-
-
10% to 90%; no load 28V±0.5% Supply
-
-
-
-40°C to +125°C
Min Typ Max
3 4.5 7
---
---
---
---
- - 1.0
5.0 7.4 8.5
2.4 3.4 5.0
2.4 3.4 5.0
5.0 7.4 8.5
- - 1.0
- - 1.0
Units
mA
V
µA
mA
µs
Magnetic Characteristics
Symbol
Bop
Characteristic
Operate Point
24°C ± 2°C
VS = 12VDC ± 0.5%VDC
Min Max
40 120
-40°C to +125°C
VS = 4.5VDC to 28VDC
Min Max
30 150
( 1mT = 10 Gauss )
Unit
Gauss
Brp Release Point
-120
-40
-150
-30 Gauss
Bhy Hysteresis
120
200
120
200 Gauss
Notes:
5. All the parameters are tested under the 25oC only. The operation temperature (-40oC to 125oC) is guaranteed by design, it is typical value.
6. The magnetic field strength (gauss) required to cause the switch to change state (operate and release) will be as specified in the magnetic
characteristics. To test the switch against the specified magnetic characteristics the switch must be placed in a uniform magnetic field.
DOB
DO
Turn on
Bhy Turn off
VSAT
Brp 0 Bop
Magnetic Flux Density in Gauss
Turn off
Bhy Turn on
VSAT
Brp 0
Bop
Magnetic Flux Density in Gauss
AH342
Document number: DS30886 Rev. 5 - 2
3 of 7
www.diodes.com
July 2014
© Diodes Incorporated




Part Number AH342
Description ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH
Maker Diodes Incorporated
Total Page 7 Pages
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