AH1888-FJRG-7 Diodes Inc, AH1888-FJRG-7 Datasheet

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AH1888-FJRG-7

Manufacturer Part Number
AH1888-FJRG-7
Description
Board Mount Hall Effect / Magnetic Sensors HALL IC SWITCH CMOS EFFECT SW 1.65-3.3V
Manufacturer
Diodes Inc
Datasheet

Specifications of AH1888-FJRG-7

Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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Part Number:
AH1888-FJRG-7
Quantity:
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Features
Description
The AH1888 micro power Omni-polar Hall Effect switch IC
designed for portable and battery powered equipment such
as cellular phones, PDA’ s and portable PC’ s.
two sensitive Hall Effect plates and chopper stabilized
architecture the AH1888 provides a reliable solution over the
whole operating range. To support portable and battery
powered equipment the design has been optimized to
operate over the supply range of 1.65V to 3.3V and
consumes only 12.6uW with a supply of 1.8V.
The outputs are switched with either a north or south pole of
sufficient strength. When the magnetic flux density (B) is
larger than operate point (Bop) the output is switched on. The
output is turned off when B becomes lower than the release
point (Brp). The output will remain off when there is no
magnetic field. The AH1888-ZG has two outputs, output one
pulls low when switched on and output two is inverted. The
AH1888-FJG provides output one and AH1888-FJRG
provides output two.
AH1888
Document number: DS31565 Rev. 7 - 2
Omni-polar (north or south pole) operation
Single or dual output options
Internal output pull up capability
Micropower operation
1.65V to 3.3V operating range
Chopper stabilized design provides
Superior temperature stability
Minimal switch point drift
Enhanced immunity to stress
Good RF noise immunity
-40°C to 85°C operating temperature
ESD (HBM)>4KV for SOT553
ESD (HBM)>5KV for DFN2020-3 and DFN2020R-3
Package: SOT553, DFN2020-3 and DFN2020R-3
“Green” Molding Compound
MICROPOWER, GENERAL-SENSITIVE HALL EFFECT
Based on
www.diodes.com
1 of 11
Pin Assignments
Applications
Cellular phone
Portable PC and PDAs
Camcorders
Cordless phone
Contactless switch in consumer products
1. Vdd
Output 2
( Top View )
DFN2020-3
3. GND
GND
NC
2. Output 1
1
2
3
( Top View )
SOT553
1. Vdd
( Top View )
DFN2020R-3
5
4
3. GND
AH1888
© Diodes Incorporated
Output1
Vdd
2. Output 2
SWITCH
May 2011

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AH1888-FJRG-7 Summary of contents

Page 1

... Description The AH1888 micro power Omni-polar Hall Effect switch IC designed for portable and battery powered equipment such as cellular phones, PDA’ s and portable PC’ s. two sensitive Hall Effect plates and chopper stabilized architecture the AH1888 provides a reliable solution over the whole operating range. To support portable and battery powered equipment the design has been optimized to operate over the supply range of 1 ...

Page 2

... Ground Output 1 O Output Pin ( Active Low ) Output 2 O Output Pin ( Active High ) AH1888 Document number: DS31565 Rev MICROPOWER, GENERAL-SENSITIVE HALL EFFECT (2) DFN2020-3 Vdd Output 1 AH1888 GND Description www.diodes.com AH1888 SWITCH (3) DFN2020R-3 Vdd Output 2 AH1888 GND May 2011 © Diodes Incorporated ...

Page 3

... Power Switch Amp Latch Output Driver Controller Amp Latch Vdd Sleep/Awake Logic and Power Switch Amp Latch Output Driver Controller Amp Latch www.diodes.com AH1888 SWITCH Output 1 Output GND Driver Vdd Output 2 GND Output 1 GND Output 2 GND May 2011 © Diodes Incorporated ...

Page 4

... Conditions Operating Operating = 25°C, Vdd = 1.8V, unless otherwise specified) A Conditions I = -0.5mA 0.5mA O Chip enable Chip disable Average supply current (Note 1) (Note www.diodes.com AH1888 SWITCH Values Unit 5 V Unlimited °C -65 to +150 230 mW °C 150 Rating Unit 1.65 to 3.3 V °C -40 to +85 Min Typ ...

Page 5

... Hysteresis 3 Output 1 ( Active Low ) Turn off Turn off V V sat sat Magnetic flux density B ) Output 2 ( Active High ) Turn off Turn off V V sat sat Magnetic flux density www.diodes.com AH1888 SWITCH (1mT=10 Gauss) Typ. Max Unit Gauss -53 - off-state ) Turn on ( on-state ) rps ...

Page 6

... MICROPOWER, GENERAL-SENSITIVE HALL EFFECT 80 Bops -20 -40 -60 Bopn - 100 1 100 147 129 120 110 tio www.diodes.com AH1888 SWITCH Sw itch Points vs Supply Voltage ℃ Bops Brps Brpn Bopn 2.0 2.5 3.0 3.5 Vdd (V) 110 120 130 140 150 May 2011 © Diodes Incorporated ...

Page 7

... FJR : DFN2020R-3 Package Device Code AH1888-ZG-7 Z AH1888-FJG-7 FJ AH1888-FJRG-7 FJR Notes Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 5. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. AH1888 Document number: DS31565 Rev ...

Page 8

... X : A~Z : Green Package Identification Code SOT553 Pin 1 indicator XX : Identification Code Y : Year : 0 Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green Package Identification Code DFN2020-3 DFN2020R www.diodes.com AH1888 SWITCH May 2011 © Diodes Incorporated ...

Page 9

... Top View Land Pattern Recommendation (Unit:mm) CL =Package Center Location Line 1.4 0.322 0.48 0. Seating plane Pin1 C 1 0.35 Top View Land Pattern Recommendation (Unit:mm) DIE CL = Package Center location Line ± 0.18 0. www.diodes.com AH1888 SWITCH May 2011 © Diodes Incorporated ...

Page 10

... Taping Orientation (Note 6) For DFN2020-3 and DFN2020R-3 Notes: 6. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf. AH1888 Document number: DS31565 Rev MICROPOWER, GENERAL-SENSITIVE HALL EFFECT www.diodes.com AH1888 SWITCH May 2011 © Diodes Incorporated ...

Page 11

... Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2011, Diodes Incorporated www.diodes.com AH1888 Document number: DS31565 Rev MICROPOWER, GENERAL-SENSITIVE HALL EFFECT IMPORTANT NOTICE LIFE SUPPORT www.diodes.com AH1888 SWITCH May 2011 © Diodes Incorporated ...

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