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Stable magnetic switch points non polar Hall effect switch NATLINEAR LN245MR for mobile applications

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Stable magnetic switch points non polar Hall effect switch NATLINEAR LN245MR for mobile applications

Operation Points : 1.5mT

Operating Current : 350uA

Release Points : 1.1mT

Operating Temperature : -40℃~+85℃

Voltage - Supply : 1.65V~6V

Description : Digital Switch Open Drain Hall Effect SOT-23

Mfr. Part # : LN245MR

Model Number : LN245MR

Package : SOT-23

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Product Overview

The LN245 is a non-polar Hall effect switch based on mixed-signal CMOS technology. It features advanced chopper-stabilized circuitry for accurate and stable magnetic switch points. The integrated clock mechanism provides timing for the Hall device and analog signal processing, enabling periodic 'sleep' mode for power saving and 'wake-up' for magnetic field detection. The output latching transistor is driven when the magnetic flux density exceeds the 'operate point' threshold or falls below the 'release point' threshold. During sleep cycles, the output transistor remains in its previous state. The output transistor latches ON in the presence of a South or North pole magnetic field and latches OFF in the absence of a magnetic field.

Typical Applications: Mobile phones, laptop computers, portable electronic devices, and more.

Product Attributes

Brand: Natlinear
Technology: Mixed-signal CMOS
Switch Type: Non-polar Hall effect switch
Output: Digital
Sensitivity: High
Stability: High
Frequency: High
Robustness: Strong against mechanical stress

Technical Specifications

Parameter	Symbol	Min	Typical	Max	Unit	Conditions
Operating Temperature Range	TA	-40		85	C
Operating Voltage Range	VDD	1.65		6.0	V
Supply Voltage	VDD	1.8		6.0	V	AC/DC Characteristics
Average Supply Current	ISAVG	100	350	1000	uA	VDD=3V, Ta=25
Average Current During Operating Time	ISOPAVG	0.5	2.0	3.5	mA	VDD=3V, Ta=25
Peak Current During Operating Time	ISOPT			4.5	mA	VDD=3V, Ta=25
Supply Current in Off State	ISSTB	1	1.9	8	uA	VDD=3V, Ta=25
Output Saturation Voltage	VQSAT	0.13	0.4		V	IQ=1mA, VDD=3V, Ta=25
Output Leakage Current	IQLEAK	0.01	1		uA	VDD=3V, Ta=25
Output Rise Time	tr	0.5		1	us	RL=2.7K, CL=10pF, VDD=3V, Ta=25
Output Fall Time	tf	0.1		1	us	RL=2.7K, CL=10pF, VDD=3V, Ta=25
Operating Time	top	55	85	120	us	VDD=3V, Ta=25
Standby Time	tstb	250	350	550	us	VDD=3V, Ta=25
Duty Cycle	top/tstb	20			%	VDD=3V, Ta=25
Chip Startup Time	tstu	12	20		us	VDD=3V, Ta=25
Operate Point (South Pole)	BOPS	1.3	1.5	1.7	mT	VDD=2.7V, Ta=25
Operate Point (North Pole)	BOPN	-1.7	-1.5	-1.3	mT	VDD=2.7V, Ta=25
Release Point (South Pole)	BRPS	0.9	1.1	1.3	mT	VDD=2.7V, Ta=25
Release Point (North Pole)	BRPN	-1.3	-1.1	-0.9	mT	VDD=2.7V, Ta=25
Hysteresis	BHYS	0.2	0.4	0.6	mT	VDD=2.7V, Ta=25
Absolute Maximum Rating: Operating Voltage	VDD	-0.3		6.0	V
Absolute Maximum Rating: Operating Current	IDD	-1		4.5	mA
Absolute Maximum Rating: Output Voltage	VOUIT	-0.3		6.0	V
Absolute Maximum Rating: Output Current	IOUT	-1		2	mA
Absolute Maximum Rating: Storage Temperature	Tstg	-45		150
Absolute Maximum Rating: Junction Temperature				150
Absolute Maximum Rating: ESD Parameter				4000	V

Pin Number	Name	Definition
1	VDD	Power Supply Voltage
2	VOUT	Output
3	GND	Ground

Order Code	Package Code	Package Type	Marking
LN245MR	M	SOT-23-3	45XY

Package Information

SOT-23-3

1811151533_NATLINEAR-LN245MR_C177117.pdf

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