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programmable linear Hall effect current sensor Allegro A1366LKTTN 10 T with temperature compensation

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programmable linear Hall effect current sensor Allegro A1366LKTTN 10 T with temperature compensation

Voltage - Supply : 4.5V~5.5V

Description : SIP-4 Linear, Compass (ICs) RoHS

Mfr. Part # : A1366LKTTN-10-T

Model Number : A1366LKTTN-10-T

Package : SIP-4

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Product Overview

The Allegro A1366 is a factory-programmable linear Hall-effect current sensor IC engineered for high accuracy and resolution. It features proprietary linearly interpolated temperature compensation technology, ensuring virtually flat sensitivity and offset across its operating temperature range. This makes it ideal for demanding current sensing applications in HEV inverters, DC-to-DC converters, and electric power steering (EPS) systems. The device offers a ratiometric voltage output proportional to the applied magnetic field, with factory-programmed sensitivity and quiescent voltage for superior accuracy. Advanced internal circuitry, including a low-noise amplifier and dynamic offset cancellation, provides industry-leading sensing resolution at a 120 kHz bandwidth. For enhanced reliability in automotive environments, it includes built-in broken ground wire detection and undervoltage lockout.

Product Attributes

Brand: Allegro
Technology: Linear Hall-effect
Programming: Factory-programmable
Compensation: Proprietary linearly interpolated temperature compensation
Certifications: AEC-Q100 automotive qualified
Package: 4-pin SIP (suffix KT)
Lead Plating: 100% matte tin
Lead Free: Yes

Technical Specifications

Characteristic	Symbol	Test Conditions	Min.	Typ.	Max.	Unit
Common Operating Characteristics (Valid through full operating temperature range, TA, CBYPASS = 0.1 F, VCC = 5 V, unless otherwise specified)
Supply Voltage	VCC		4.5	5.0	5.5	V
Supply Current	ICC	No load on VOUT		10	15	mA
Power-On Time	tPO	TA = 25C, CBYPASS = Open, CL = 1 nF, Sens = 2.5 mV/G, constant magnetic field of 320 G		78		s
Temperature Compensation Power-On Time	tTC	TA = 150C, CBYPASS = Open, CL= 1 nF, Sens = 2.5 mV/G, constant magnetic field of 320 G		30		s
Undervoltage Lockout (UVLO) Threshold (High)	VUVLOH	TA = 25C, VCC rising and device function enabled		4		V
Undervoltage Lockout (UVLO) Threshold (Low)	VUVLOL	TA = 25C, VCC falling and device function disabled		3.5		V
UVLO Enable/Disable Delay Time (Enable)	tUVLOE	TA = 25C, CBYPASS = Open, CL = 1 nF, Sens = 2.5 mV/G, VCC Fall Time (5 V to 3 V) = 1.5 s		64		s
UVLO Enable/Disable Delay Time (Disable)	tUVLOD	TA = 25C, CBYPASS = Open, CL = 1 nF, Sens = 2.5 mV/G, VCC Recover Time (3 V to 5 V) = 1.5 s		14		s
Power-On Reset Voltage (High)	VPORH	TA = 25C, VCC rising		2.6		V
Power-On Reset Voltage (Low)	VPORL	TA = 25C, VCC falling		2.3		V
Power-On Reset Release Time	tPORR	TA = 25C, VCC rising		64		s
Internal Bandwidth	BWi	Small signal 3 dB, CL = 1 nF, TA = 25C		120		kHz
Chopping Frequency	fC	TA = 25C		500		kHz
Output Characteristics (TA = 25C, unless otherwise specified)
Propagation Delay Time	tPD	magnetic field step of 320 G, CL = 1 nF, Sens = 2.5 mV/G		2.2		s
Rise Time	tR	magnetic field step of 320 G, CL = 1 nF, Sens = 2.5 mV/G		3.6		s
Response Time	tRESPONSE	magnetic field step of 320 G, CL = 1 nF, Sens = 2.5 mV/G		3.7		s
Broken Wire Voltage (High)	VBRK(HIGH)	RL(PULLUP) = 10 k to VCC		VCC		V
Broken Wire Voltage (Low)	VBRK(LOW)	RL(PULLDWN) = 10 k to GND		100		mV
Error Components
Linearity Sensitivity Error	LinERR		-1 < 0.25		1	%
Symmetry Sensitivity Error	SymERR		-1 < 0.25		1	%
Ratiometry Quiescent Voltage Output Error	RatERRVOUT(Q)	Through supply voltage range (relative to VCC = 5 V)	-1	0	1	%
Ratiometry Sensitivity Error	RatERRSens	Through supply voltage range (relative to VCC = 5 V)		1		%
Performance Characteristics
Model	Package	Leadform	Sensitivity (Typ.)	Sensitivity Drift through Temperature Range	Noise (Typ.)	Quiescent Output Voltage (Typ.)
A1366LKTTN-1-T	4-pin SIP	TN (Straight)	1 mV/G	2.5%	1.1 mGRMS/Hz	2.500 V
A1366LKTTN-2-T	4-pin SIP	TN (Straight)	2.5 mV/G	2.5%	1.25 mVRMS	2.500 V
A1366LKTTN-5-T	4-pin SIP	TN (Straight)	5 mV/G	2.5%	2.5 mVRMS	2.500 V
A1366LKTTN-10-T	4-pin SIP	TN (Straight)	10 mV/G	2.5%	5 mVRMS	2.500 V
Operating Conditions
Operating Ambient Temperature	TA		-40		150	C
Storage Temperature	Tstg		-65		165	C
Maximum Junction Temperature	TJ(max)				165	C

2106080104_ALLEGRO-A1366LKTTN-10-T_C2654999.pdf

programmable linear Hall effect current sensor Allegro A1366LKTTN 10 T with temperature compensation Images

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