昆泰芯微电子

High-Speed High-Resolution Magnetic Coded Angle Sensor

The KTH78xx series supports both on-axis and off-axis applications. We can provide magnetic simulation services to help customers achieve better accuracy in various application scenarios. This series of chips has a low INL error down to ±0.35°, low noise down to 0.007°, a system delay of 1us, and internal delay compensation. It supports a temperature range of -40 to 125°C, making it suitable for a wide range of applications such as automotive angle control, absolute angle position sensors, BLDC motors, closed-loop stepping motors, elevators, security gates, AGV, and more.

KTH78xx series is a high-precision, low-latency 16-bit resolution Hall absolute angle encoder capable of measuring magnetic field components in the XY plane. This sensor supports four-wire SPI absolute angle output (optional CRC output verification), two-wire SSI absolute angle output, programmable 4-4096 steps/revolution ABZ incremental output, programmable 1-8 pole pairs UVW incremental output, and PWM duty cycle angle output. The chip integrates an alarm function, allowing users to customize alarm thresholds for low or high magnetic field conditions.
The KTH78xx series supports both on-axis and off-axis applications. We can provide magnetic simulation services to help customers achieve better accuracy in various application scenarios. This series of chips has a low INL error down to ±0.35°, low noise down to 0.007°, a system delay of 1us, and internal delay compensation. It supports a temperature range of -40 to 125°C, making it suitable for a wide range of applications such as automotive angle control, absolute angle position sensors, BLDC motors, closed-loop stepping motors, elevators, security gates, AGV, and more.

Key Advantages

ㆍUltra-low latency, updates data every 1μs.

ㆍSupport for off-axis applications.

ㆍSupport for Multi-pole magnet.

ㆍCompliant with AEC-Q100 standards.

ㆍOptional CRC verification output.

ㆍMagnetic field strength diagnosis/alarm.

ㆍOptional 3.3V/5V power supply.

ㆍUltra-compact QFN16_3x3mm and SOP8 packages available.

Parameters

Series	Magnet Placement	Detection Range	Operating Voltage	Noise(1sigma)	INL	Operating Current	Rotational Speed
KTH78XX KTH780X Automotive-grade KTH781X Industrial Automation KTH782X General-purpose	On-axis, off-axis	360°	3.3V/5V	0.004°-0.24°	±0.35°	11.6mA	120,000 rpm
	Output Mode		Temperature Drift	Magnetic Field Detection Range	Start-Up Time	Operating Temperature	Package Form
	ABZ/UVW/PWM/SPI/SSI output		0.015°/°C	30~150mT	1ms	-40 ~ +125 ℃	QFN-16L SOP-8
Sensing Direction

Product	Supply Voltage	Supply Current	Resolution	Noise	Off-axis Application	Interface	CRC Check	ABZ Resolution	PWM Frequency	Maximum Acceleration/Deceleration Delay	System Delay (Constant Speed)	Power-up Time	Angle Refresh Rate	Cutoff Frequency	Magnetic Field Detection	Operating Temperature	Applied Magnetic Field
KTH7801	3.3V/5V	11.6mA	16bit	0.015°	Support	SPI SSI PWM ABZ	Optional	12bit	910Hz	3μs	~0μs	1ms	1MHz	313Hz	Yes	-40 ~ 125 ℃	30~150mT
KTH7802	3.3V/5V	11.6mA	16bit	0.015°	Support	SPI UVW ABZ	Optional	12bit	910Hz	3μs	~0μs	1ms	1MHz	313Hz	Yes	-40 ~ 125 ℃	30~150mT
KTH7811	3.3V/5V	11.6mA	16bit	0.015°	Support	SPI UVW ~UVW	Optional	12bit	910Hz	/	~0μs	1ms	1MHz	313Hz	Yes	-40 ~ 125 ℃	30~150mT
KTH7812	3.3V/5V	11.6mA	16bit	0.015°	Support	SPI UVW ABZ	Optional	12bit	910Hz	/	~0μs	1ms	1MHz	313Hz	Yes	-40 ~ 125 ℃	30~150mT
KTH7813	3.3V/5V	11.6mA	16bit	0.015°	Support	SPI UVW ABZ	Optional	12bit	910Hz	/	~0μs	1ms	1MHz	313Hz	Yes	-40 ~ 125 ℃	15~150mT
KTH7815	3.3V/5V	11.6mA	16bit	0.24°	Support	SPI ABZ ~ABZ	Optional	12bit	910Hz	3μs	~0μs	1ms	1MHz	235kHz	Yes	-40 ~ 125 ℃	15~150mT
KTH7816	3.3V/5V	11.6mA	16bit	0.015°	Support	SPI SSI PWM ABZ	Optional	12bit	910Hz	/	~0μs	1ms	1MHz	313Hz	Yes	-40 ~ 125 ℃	30~150mT
KTH7821	3.3V/5V	11.6mA	16bit	0.24°	Support	SPI SSI PWM ABZ	Optional	12bit	910Hz	3μs	~0μs	1ms	1MHz	235kHz	Yes	-40 ~ 105 ℃	30~150mT
KTH7822	3.3V/5V	11.6mA	16bit	0.059°	Support	SPI SSI	Optional	12bit	910Hz	/	~0μs	1ms	1MHz	4.9kHz	Yes	-40 ~ 105 ℃	30~150mT
KTH7823	3.3V/5V	11.6mA	16bit	0.015°	Support	SPI SSI PWM ABZ	Optional	12bit	910Hz	/	~0μs	1ms	1MHz	313Hz	Yes	-40 ~ 105 ℃	30~150mT
KTH7824	3.3V/5V	11.6mA	16bit	0.007°	Support	SPI SSI PWM ABZ	Optional	12bit	910Hz	/	~0μs	1ms	1MHz	20Hz	Yes	-40 ~ 105 ℃	40~150mT

Documents

Series	Type	Chinese Version	English Version
KTH78XX	Installer	KTH78评估板上位机安装包.exe	-
KTH78XX	User Guide	KTH78上位机安装使用说明.pdf	-

Series	Type	Document
KTH78XX	Installer	KTH78评估板上位机安装包.exe
KTH78XX	User Guide	KTH78上位机安装使用说明.pdf

Application Scenario	Series	Type	Chinese Version	English Version
Automotive	KTH7801	Datasheet	KTH7801 产品手册.pdf	KTH7801 Datasheet.pdf
Consumer	KTH7823	Datasheet	KTH7823 产品手册.pdf	KTH7823 Datasheet.pdf
Consumer	KTH7824	产品手册	KTH7824 产品手册.pdf	-
Industrial	KTH7812	Datasheet	KTH7812 产品手册.pdf	-
	KTH7813	产品手册	KTH7813 产品手册.pdf	-
	KTH7814	Datasheet	KTH7814 产品手册.pdf	-
	KTH7815	Datasheet	KTH7815 产品手册.pdf	-
	KTH7816	Datasheet	KTH7816 产品手册.pdf	-
	KTH7818	Datasheet	KTH7818 产品手册.pdf	-

Application Scenario	Series	Document
Automotive	KTH7801	KTH7801 产品手册.pdf
Automotive	KTH7801	KTH7801 Datasheet.pdf
Consumer	KTH7823	KTH7823 产品手册.pdf
	KTH7823	KTH7823 Datasheet.pdf
	KTH7824	KTH7824 产品手册.pdf
Industrial	KTH7812	KTH7812 产品手册.pdf
	KTH7813	KTH7813 产品手册.pdf
	KTH7814	KTH7814 产品手册.pdf
	KTH7815	KTH7815 产品手册.pdf
	KTH7816	KTH7816 产品手册.pdf
	KTH7818	KTH7818 产品手册.pdf

An Introduction to the KTH78 Series

The KTH78 series significantly improves absolute accuracy with multi-bipolar applications in tow calibration.

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