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AH182/AH183
Low power Hall Effect Switch Features
- Micropower operation - 2.5V to 5.5V battery operation - Offset Canceling Technology - Superior temperature stability - Extremely Low Switch-Point Drift - Insensitive to Physical Stress - -40C to 85C operating temperature - Low profile 3 pin SIP/SOT23 package
General Description
AH182/AH183 is a three-terminal Hall effect sensor device with a output driver, mainly designed for battery-operation, hand-held equipment(such as Cellular and cordless Phone, PDA) The total operation power is down to 15uW in the 2.75V supply. The south pole of sufficient strength will turn the output on in SIP3 but the north pole of sufficient strength will turn the output on in SOT23 package. The output will be turned off under no magnetic field. While the magnetic flux density (B) is larger than operate point (Bop), the output will be turned on (low), the output is latched until B is lower than release point (Brp), then turned off that. The difference between AH182 and AH183 is the former consumes less power than that of the latter in the Hall sensor operation.
Applications
- Cover detector - Speed measurement - Home safety
Pin Assignments
(Top view)
3. Output 2. GND 1. VCC (SIP3 package)
Pin Descriptions
Name Vcc GND Output P/I/O P/I P O Pin # 1 2 3 Description Power Supply Input Ground Output Pin
3. Output GND 2. 1. VCC ( SOT23 package)
Ordering Information
AH182/AH183 X - X X X
CMOS Hall-effect Switch
Wafer Body Blank or A~Z : if necessary to specify
Package P: SIP-3L W: SOT23-3L
Lead L : Lead Free Blank: Normal
Packing Blank : Tube or Bulk A : Tape & Reel
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product.
Rev. 0.3 May 7, 2004 1/6
AH182/AH183
Low power Hall Effect Switch Block Diagram
1
VCC
Reg./Switch Output Hall Plate
3
Amp Latch Gnd
Offset Cancelling
2
Typical Circuit
2.5~5.5V
Vcc
RL
AH182/ AH183
Gnd
Output
Digital Output
Absolute Maximum Ratings
Characteristics Supply voltage Magnetic flux density Operating Temperature Range Storage Temperature Range Package Power Dissipation Maximum Junction Temp
(Ta = 25C) Symbol VCC B Ta Ts PD SIP3 SOT23-3 Tjc Values 7 Unlimited -40 to +85 -65 to +170 550 230 150 C C mW mW C Unit V
Anachip Corp. www.anachip.com.tw 2/6
Rev 0.3 May 7, 2004
AH182/AH183
Low power Hall Effect Switch Electrical Characteristics
Characteristic Supply Voltage Output On Voltage Output Leakage Current Supply Current Awake Time Period Duty Cycle Symbol Vcc Vout Ioff Icc(en) Icc(dis) Icc(avg) Icc(avg) Tawake Tperiod D.C. ( Ta = +25C, Vcc = 3V ) Conditions Operating Iout=1mA Vout=5.5V, B < Brp Chip enable Chip disable AH182:average supply current AH183:average supply current AH182 AH183 AH182 AH183 Min 2.5 Typ 3 0.1 <0.1 Max 5.5 0.3 1 2.0 8.0 10 500 100 100 400 Unit V V A mA uA uA uA s ms us % %
5 280 50 50 200 0.1 25
Test Circuit
182/183
Pull up resistor
1 Vcc 2.5-5.5V 2
3
Magnetic Characteristics (Ta=-40C to +85C)
(1mT=10 Gauss) Characteristic Operate Point Release Point Hysteresis Symbol Bop Brp Bhy(Bop-Brp) Min -10 -Typ 40 30 10 Max 60 --Unit Gauss
Anachip Corp. www.anachip.com.tw 3/6
Rev 0.3 May 7, 2004
AH182/AH183
Low power Hall Effect Switch
Output ( Output Voltage )
S
S
Marking side
( off-state )
Vcc
Turn off
Bhy
Turn on
Marking side
N ( SOT23 )
N Vsat ( SIP3 ) 0 B rp
( on-state )
B op
( Magnetic flux density B )
Performance Characteristics (SIP3)
Ta (C) 25 50 60 70 80 85 90 95 100 220 105 198 110 176 115 154 120 132
Pd (mW) 550 440 396 352 308 286 264 242
P d (m W ) 600 500 400 300 200 100 0 25 50 75
P o w e r D is s ip a tio n C u rv e
85
100
125
150 T a ( C )
Anachip Corp. www.anachip.com.tw 4/6
Rev 0.3 May 7, 2004
AH182/AH183
Low power Hall Effect Switch Marking Information
(1) SOT23
(Top View) ID code A~Z: Non-Lead Free a~z: Lead Free K2: AH182 K3: AH183 Date code Y : Year M : Month (A~L)
(2) SIP3
(Top View) 182/183 YWW X ID code A~Z: Non-Lead Free a~z : Lead Free Date code Y : Year WW : Nth week
XX YM X
Package Information
(1)Package type: SIP-3L
0.51mm NOM 2.00mm
1.15mm
BRANDED SURFACE
1
2
3
Active Area Depth
45
Sensor Location
0.38mm 0.7mm
1.57mm 1.47mm 0.41mm 0.41mm
3
4.17mm 4.04mm 1.27mm
2 1
1.82 mm
45
3.10mm 2.97mm
15.50mm 13.00mm
Package Dimension
Anachip Corp. www.anachip.com.tw 5/6 Rev 0.3 May 7, 2004
AH182/AH183
Low power Hall Effect Switch
(2) Package type: SOT23-3L
D
2 ( Sensing point )
E 0.8mm HE
1
1.45mm
3
e1 e 1(4x) 0.10 C 3X SEATING PLANE 2(4x) b(3x)
SEE VIEW C
A2
GAUGE PLANE L
A
A1
L1
VIEW C
Symbol A A1 A2 b C D E HE L L1 e e1 1 2
Dimensions In Millimeters Min. 1.05 0.05 1.00 0.25 0.08 2.70 1.50 2.60 0.30 0.50 1.80 0.85 0o 3o 6o Nom. 1.10 2.90 1.60 2.80 0.60 1.90 0.95 5o 5o 8o Max. 1.35 0.15 1.20 0.50 0.20 3.00 1.70 3.00 0.55 0.70 2.00 1.05 10o 7o 10o
Dimensions In Inches Min. 0.041 0.002 0.039 0.010 0.003 0.106 0.059 0.102 0.012 0.020 0.071 0.033 0o 3o 6o Nom. 0.043 0.114 0.063 0.110 0.024 0.075 0.037 5o 5o 8o Max. 0.053 0.006 0.047 0.020 0.008 0.118 0.067 0.118 0.022 0.028 0.079 0.041 10o 7o 10o
Anachip Corp. www.anachip.com.tw 6/6
Rev 0.3 May 7, 2004

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