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.
Features
• Digital dual complementary sink/source outputs
• Reverse Voltage Polarity protection for full supply range
• High output current capability
• Low profile packages: SIP-4L
ADVANCED INFORMATION
• Lead Free Package: SIP-4L
• Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
Notes: 1. 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.
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.
Supply Voltage ±28 V
Voltage Externally Applied to Output -1.2 to +5 V
Storage Temperature Range -40to +150 °C
Recommended Operating Conditions(@T
Symbol Characteristic Conditions Min Max Unit
VCC
TA
Note: 4. Shall not exceed PD and Safety Operation Area.
AH342
Document number: DS30886 Rev. 4 - 2
Supply Voltage Operating 4.5 28 V
Operating Ambient Temperature (Note 4) Operating -40 +125 °C
tf Fall Time 90% to 10%; no load 28V±0.5% Supply - - - - - 1.0
tr Rise Time 10% to 90%; no load 28V±0.5% Supply - - - - - 1.0
ADVANCED INFORMATION
Supply Current 28V±0.5% supply 4 4.5 6 3 4.5 7 mA
#1 Sourcing
#2 Sinking 0 0.1 0.2 - - -
#1 Sinking 0 0.1 0.2 - - -
#2 Sourcing 6.0 7.0 7.5 - - -
Leakage (sink)
#1 Sourcing Apply 2V to output and measure current.
#2 Sinking 2.8 3.4 4.7 2.4 3.4 5.0
#1 Sinking 2.8 3.4 4.7 2.4 3.4 5.0
#2 Sourcing 5.5 7.4 8.0 5.0 7.4 8.5
= +25°C, unless otherwise specified.) (Note5,6)
A
Switch magnetically operated:
No load 28V±0.5% supply.
Switch magnetically released:
No load 28V±0.5% supply.
Apply voltage 0.2V greater than
measured output source voltage measure
current, no load 28V±0.5% supply.
Switch magnetically operated, no load
28V±0.5%.
Apply 2V to output and measure current.
Switch magnetically released, no load
28V±0.5%.
24°C ± 2°C -40°C to +125°C
Min Typ Max Min Typ Max
6.0 7.0 7.5 - - -
- - 1.0 - - 1.0 µA
5.5 7.4 8.0 5.0 7.4 8.5
Magnetic Characteristics
( 1mT = 10 Gauss )
24°C ± 2°C
V
Symbol Characteristic
Bop Operate Point 40 120 30 150 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.
= 12VDC ± 0.5%VDC
S
Min Max Min Max
-40°C to +125°C
VS = 4.5VDC to 28VDC
H342
Units
V
mA
µs
Unit
Output Voltage in Volts
AH342
Document number: DS30886 Rev. 4 - 2
DOB
DO
BhyTurn onTurn offBhyTurn offTurn on
Output Voltage in Volts
V
SAT
www.diodes.com
3 of 7
V
SAT
BopBopBrpBrp
00
Magnetic Flux Density in GaussMagnetic Flux Density in Gauss
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ADVANCED INFORMATION
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