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OCH167/OCH167A
Micro Power Omnipolar Hall-effect Sensor Switch
General Description
The OCH167 Omnipolar Hall effect sensor IC is
fabricated from mixed signal CMOS technology. It is
comprised of two Hall plates and a CMOS output
driver, mainly designed for battery-operation,
hand-held equipment (such as Cellular and Cordless
Phone, PDA). The total power consumption in normal
operation is typically 39μW with a 3V power source.
Either north or south poles of sufficient strength will
turn the output on. The output will be turned off under
no magnetic field. While the magnetic flux density (B)
is larger than operating point (BOP), the output will be
turned on (low), the output is held until B is lower than
release point (BRP), and then turned off.
The OCH167 is available in many flexible
packaging options, such as TSOT23-3L,
DFN1616-6L, DFN1616-3L, DFN2020-3L, and
DFN1216-4L. Operating temperature range of the
OCH167 is from -40°C to 85°C.
To minimize the BOM cost, capacitors of the
MLCC type are supported, and only one external
component are needed to complete the application
circuit.
Features
Micro power consumption ideal for
battery-powered applications
Omnipolar (operation with magnetic field of either
north or south pole), easy to use as output
switches with both North and South pole
Input Voltage Range: 2.2V to 3.65V
Very High Sensitivity Hall Sensor
Chopper stabilized amplifier stage
Good RF noise immunity
TSOT23-3L/Low profile DFN1616-6L
/DFN1616-3L DFN2020-3L DFN1216-4L
package
Not need the push-high resistance
Applications
Cover switch in clam-shell cellular phones
Cover switch in Notebook PC/PDA
Contact-less switch in consumer products
Solid State Switch
Handheld Wireless Handset Awake Switch
Lid close sensor for battery-powered devise
Magnet proximity sensor for reed switch
replacement in low duty cycle applications
Pin Configuration
(1) TSOT23-3L (Top View)
(2) DFN1616-6L (Top View)
(3) DFN1616-3L (Top View)
(4) DFN2020-3L (Top View)
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OCH167/OCH167A
Micro Power Omnipolar Hall-effect Sensor Switch
Pin
Name
VDD
GND
OUTPUT
N.C
TSOT23-3L
1
3
2
-
DFN1616-6L
4
2
6
135
Pin No.
DFN1616-3L
2
1
3
-
(5) DFN1216-4L (Top View)
DFN2020-3L
1
3
2
-
Pin Function
Power Supply Input
Ground
Output Pin
Not connected
Pin Name
VDD
GND
OUTPUT
N.C
Pin No.
OCH167 OCH167A
41
22
14
33
Pin Function
Power Supply Input
Ground
Output Pin
Not Connected
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Typical Application Circuit
OCH167/OCH167A
Micro Power Omnipolar Hall-effect Sensor Switch
Note: C is for power stabilization and to strengthen the noise immunity, the recommended capacitance is
10nF~100nF.
Ordering Information
(1)
OCH167XXX
Package:
TW:TSOT23-3L
V6:DFN1616-6L
V3:DFN1616-3L
VC:DFN2020-3L
V4:DFN1216-4L
Packing:
Blank:Tube or Bulk or Box
A:Tape&Reel
Temperature Grade:
D: -40°C~85°C
(2)
OCH167AXXX
Package:
V4:DFN1216-4L
Packing:
Blank:Tube or Bulk or Box
A:Tape&Reel
Temperature Grade:
D: -40°C~85°C
Part Number Package Type
OCH167TWAD
OCH167V6AD
OCH167V3AD
OCH167VCAD
TSOT23-3L
DFN1616
-6L
DFN1616
-3L
DFN2020-3L
OCH167V4AD DFN1216-4L
OCH167AV4AD DFN1216-4L
Package Qty
7-in reel
3000pcs/reel
7-in reel
3000pcs/reel
7-in reel
3000pcs/reel
7-in reel
3000pcs/reel
7-in reel
3000pcs/reel
7-in reel
3000pcs/reel
Brp
(Gauss)
±10 ~ ±30
Bop
(Gauss)
±20 ~ ±60
Temperature
-4085
Eco
Plan
Green
±10 ~ ±30 ±20 ~ ±60 -4085Green
±10 ~ ±30 ±20 ~ ±60 -4085Green
±10 ~ ±30 ±20 ~ ±60 -4085Green
±10 ~ ±30 ±20 ~ ±60 -4085Green
±10 ~ ±30 ±20 ~ ±60 -4085Green
Lead/Ball
Finish
Cu Sn
Cu
NIPDAU
Cu
NIPDAU
Cu
NIPDAU
Cu
NIPDAU
Cu
NIPDAU
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Ver.1.4 Feb .27, 2018
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