Datenblatt für AH1895 von Diodes Incorporated

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AH1895
Document number: DS35742 Rev. 1 - 2 1 of 10
www.diodes.com July 2013
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NEW PRODUCT
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H1895
MEDIUM SENSITIVITY MICROPOWER
OMNIPLOAR HALL-EFFECT SWITCH
Description
The AH1895 is a medium sensitivity micropower Omnipolar Hall effect
switch IC with internal pull up and pull down capability. Designed for
portable and battery powered equipment such as cellular phones and
portable PCs to home appliances and industrial applications, the
average supply current is only 4.3uA at 1.85V. To support portable
equipment the AH1895 can operate over the supply range of 1.6V to
3.6V and uses a hibernating clocking system to minimize the power
consumption. To minimize PCB space the AH1895 is available in
small low profile X1-DFN1216-4 and SOT553 packages.
The output is activated with either a north or south pole of sufficient
magnetic field strength. When the magnetic flux density (B)
perpendicular to the package is larger than operate point (Bop), the
output will be turned on (pulled low) and held until B is lower than
release point (Brp). The output will remain off when there is no
magnetic field.
Features
Omnipolar Operation (North or South pole)
Supply Voltage of 1.6V to 3.6V
Medium Sensitivity
Micropower Operation
Chopper Stabilized Design Provides:
Superior Temperature Stability
Minimal Switch Point Drift
Enhanced Immunity to Physical Stress
No External Pull-up Resistors Required
Good RF Noise Immunity
-40°C to +85°C Operating Temperature
High ESD capability of 8kV (Human Body Model)
Small Low Profile X1-DFN1216-4 and SOT553 Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
(Top View)
X1-DFN1216-4
(Top View)
SOT553
Applications
Open and Close Detect for Cellular Phones
Holster or cover detect for cellular phones and Tablet PCs
Cover or Display Switches in Portable PCs
Digital Still, Video Cameras and Handheld Gaming Consoles
Door, Lids and Tray Position Switches
Level, Proximity and Position Switches
Contact-Less Switches in Home Appliances 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.
Typical Applications Circuit
Note: 4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 100nF typical.
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AH1895
Document number: DS35742 Rev. 1 - 2 2 of 10
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© Diodes Incorporated
NEW PRODUCT
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H1895
Pin Descriptions
Package: X1-DFN1216-4
Pin Number Pin Name Function
1 OUTPUT Output Pin
2 VDD Power Supply Input
3 NC No Connection (Note 5)
4 GND Ground Pin
Package: SOT553
Pin Number Pin Name Function
1 VDD Power Supply Input
2 NC No Connection (Note 5)
3 NC No Connection (Note 5)
4 GND Ground
5 OUTPUT Output
Note: 5. NC is “No Connection” pin and is not connected internally. This pin can be left open or tied to ground.
Functional Block Diagram
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AH1895
Document number: DS35742 Rev. 1 - 2 3 of 10
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© Diodes Incorporated
NEW PRODUCT
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H1895
Absolute Maximum Ratings (Note 6) (@TA = +25°C, unless otherwise specified.)
Symbol Parameter Rating Unit
VDD Supply Voltage (Note 7) 6 V
VDD_REV Reverse Supply Voltage -0.3 V
IOUTPUT Output Current (source and sink) 3.5 mA
B Magnetic Flux Density Unlimited
PD Package Power Dissipation X1-DFN1216-4 230 mW
SOT553 230 mW
Ts Storage Temperature Range -65 to +150 °C
TJ Maximum Junction Temperature 150 °C
ESD HBM Human Body Model (HMB) ESD capability 8 kV
Notes: 6. 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.
7. The absolute maximum VDD of 6V 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 = +25°C, unless otherwise specified.)
Symbol Parameter Conditions Rating Unit
VDD Supply Voltage Operating 1.6V to 3.6V V
TA Operating Temperature Range Operating -40 to +85 °C
Electrical Characteristics (@TA = +25°C, VDD = 1.85V, unless otherwise specified.)
Symbol Parameter Conditions Min Typ Max Unit
VOL Output Low Voltage (on) IOUT = 1mA — 0.1 0.2 V
VOH Output High Voltage (off) IOUT = -1mA VDD -0.2 VDD -0.1 — V
Ioff Output Leakage Current VOUT = 3.6V, Output off — < 0.1 1 µA
IDD(awake)
Supply Current
During ‘awake’ period,
TA = +25°C, VDD = 3V — 2.1 — mA
IDD(sleep) During ‘sleep’ period,
TA = +25°C, VDD = 3V — 2.5 — mA
IDD(avg) Average Supply Current TA = +25°C, VDD = 1.85V — 4.3 8 µA
TA = +25°C, VDD = 3.6V — 7.2 13 µA
Tawake Awake Time (Note 8) — 50 100 µs
Tperiod Period (Note 8) — 50 100 ms
D.C. Duty Cycle — 0.1 — %
Note: 8. When power is initially turned on, the operating VDD (1.6V to 3.6V) must be applied to guaranteed the output sampling.
The output state is valid after the second operating cycle (typical 100ms).
l- O D D ‘3 OUTPUT E A , 7 Von (offwstate) VDI1 (off-state) v0" Turn Bhy Turn Turn Bhy Turn on “*4 Off off “*4 on (on-stale) (on-stale) ‘ VOL ¢ I I | I ¢V0L= Vsn > Bop" Brpn 0 Brps Bops (Magnetic Flux Density B) AH1 895 4 aI 10 Document number 0535742 Flex/.1 72 www.diodes.com
AH1895
Document number: DS35742 Rev. 1 - 2 4 of 10
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NEW PRODUCT
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H1895
Magnetic Characteristics (Note 9 &10) (TA = -40°C to +85°C, VDD = 1.85V, unless otherwise specified)
(1mT=10 Gauss)
Symbol Characteristics Min Typ Max Unit
Bops (south pole to part marking side) Operation Point 40 60 80
Gauss
Bopn (north pole to part marking side) -80 -60 -40
Brps (south pole to part marking side) Release Point 35 50 65
Brpn (north pole to part marking side) -65 -50 -35
Bhy (|Bopx|-|Brpx|) Hysteresis (Note 11) 5 10 -
Notes: 9. Typical data is at TA = +25C, VDD = 1.85V.
10. Maximum and minimum parameters values over the operating temperature range are not tested in production, they are guaranteed by design, process
control and characterization. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
11. Maximum and minimum hysteresis is guaranteed by design and characterization.
( Output Voltage )
NEW PRODUCT A —__/ AH1895 Document numbev D335742 Rev. ‘ - 2 5 GI 10 www.dlodes.com
AH1895
Document number: DS35742 Rev. 1 - 2 5 of 10
www.diodes.com July 2013
© Diodes Incorporated
NEW PRODUCT
A
H1895
Typical Operating Characteristics
-100
-80
-60
-40
-20
0
20
40
60
80
100
-50-25 0 255075100
Gauss (G)
Temperature (°C)
Switch Points vs Temperature
Brpn
Bops
Bopn
Brps
Bhy
V
DD
= 1.6V
-100
-80
-60
-40
-20
0
20
40
60
80
100
-50-250 255075100
Gauss (G)
Temperature (°C)
Switch Points vs Temperature
V
DD
= 1.85V
Brpn
Bops
Bopn
Brps
Bhy
-100
-80
-60
-40
-20
0
20
40
60
80
100
-50-25 0 255075100
Gauss (G)
Temperature (°C)
Switch Points vs Temperature
V
DD
= 3.6V
Brpn
Bops
Bopn
Brps
Bhy
-100
-80
-60
-40
-20
0
20
40
60
80
100
1.5 1.8 2.1 2.4 2.7 3 3.3 3.6 3.9
Gauss (G)
Supply Voltage (V)
Switch Points vs Supply Voltage
T
A
= +25°C
Brpn
Bops
Bopn
Brps
Bhy
0
1
2
3
4
5
6
7
8
9
10
-50-25 0 255075100
Average Supply Current IDD (μA)
Temperature (°C)
Average Supply Current vs. Temperature
3.6V
1.85V
1.6V
0
1
2
3
4
5
6
7
8
9
10
1.5 1.8 2.1 2.4 2.7 3 3.3 3.6 3.9
Average Supply Current I
DD
(μA)
Supply Voltage (V)
Average Supply Current vs. Supply Voltage
T
A
= +25°C
‘PRODUCT AH1394-XXX -l Package Packing FA : X1-DFN1216-4 7 : Tape & Reel Z : SOT553 (Top View) ,, PIn 1 Indicafior X entification Code ear : 0-9 Week : A~Z : 1~26 week; a~z : 27~62 week; 1 represents 52 and 53 week 1:A~Z : Green fiw & X Mlfll W U Ll U K AH1895 60410 Document number 0535742 Hex/.1 72 www.diodes.com
AH1895
Document number: DS35742 Rev. 1 - 2 6 of 10
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© Diodes Incorporated
NEW PRODUCT
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H1895
Ordering Information
Part Number Package
Code Packaging 7” Tape and Reel
Quantity Part Number Suffix
AH1895-FA-7 FA X1-DFN1216-4 3000/Tape & Reel -7
AH1895-Z-7 Z SOT553 3000/Tape & Reel -7
Marking Information
(1) Package Type: X1-DFN1216-4
Part Number Package Identification Code
AH1895-FA-7 X1-DFN1216-4 B5
(2) Package Type: SOT553
( Top View )
Y : Year : 0 to 9
X : Internal code
XX : Identification Code
W : Week : A to Z : 1~26 week;
a to z : 27~52 week; z represents
52 and 53 week
XX Y W X
Part Number Package Identification Code
AH1895-Z-7 SOT553 B5
‘NEW PRODU T H n «g n ) E Top View I my mamas Pm: 1 ' / sums; k Q I \ Hau sensor “—> mmsa AH1 895 7 a! 10 Document numbev 0535742 Rev. 1 ‘ 2 www.dlodes.com me '
AH1895
Document number: DS35742 Rev. 1 - 2 7 of 10
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NEW PRODUCT
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H1895
Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
(1) Package Type: X1-DFN1216-4
Bottom View
0.57/0.63
0.11/0.25
Sensor Location
X1-DFN1216-4
Dim Min Max Typ
A 0.47 0.53 0.50
A1 0.00 0.05 0.02
A3 -- -- 0.13
b 0.15 0.25 0.20
D 1.15 1.25 1.20
D2 0.75 0.95 0.85
E 1.55 1.65 1.60
E2 0.55 0.75 0.65
e - - 0.65
L 0.20 0.30 0.25
Z - - 0.175
All Dimensions in mm
mu ‘ Mums \ x -, mm \ Q . 0 , a Q ‘ ‘ m S 1‘! 0 010/018
AH1895
Document number: DS35742 Rev. 1 - 2 8 of 10
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© Diodes Incorporated
NEW PRODUCT
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H1895
Package Outline Dimensions (cont.) (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
(2) Package Type: SOT553
Sensor Location
SOT553
Dim Min Max Typ
A 0.55 0.62 0.60
b 0.15 0.30 0.20
c 0.10 0.18 0.15
D 1.50 1.70 1.60
E 1.55 1.70 1.60
E1 1.10 1.25 1.20
e 0.50 BSC
e1 1.00 BSC
F 0.00 0.10 ––
L 0.10 0.30 0.20
a 6° 8° 7°
All Dimensions in mm
E1/2
E1
D
TYP.
R0.1 MAX.
a
A
E/2
E
b (5x)
e
e1
L (5x)
c
F
7°
TYP.
EW PRODUCT i ”IF—fl |‘——’| Inl AH1895 Document numbev 0535742 Rev. 1 ‘ 2 9 al 10 www.dlodes.com
AH1895
Document number: DS35742 Rev. 1 - 2 9 of 10
www.diodes.com July 2013
© Diodes Incorporated
NEW PRODUCT
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H1895
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
(1) Package Type: X1-DFN1216-4
(2) Package Type: SOT553
X1-DFN1216-4
Dimensions Value
C 0.65
X 0.25
X1 0.90
Y 0.50
Y1 0.70
Y2 2.00
All Dimensions in mm
SOT553
Dimensions Value
Z 2.2
G 1.2
X 0.375
Y 0.5
C1 1.7
C2 0.5
All Dimensions in mm
X
Z
Y
C1
C2
C2
G
July 2013 a; Dmdes mmmm
AH1895
Document number: DS35742 Rev. 1 - 2 10 of 10
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© Diodes Incorporated
NEW PRODUCT
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H1895
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