KTH4603 - 完整技术参考
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📄 KTH4603 Datasheet_EN.pdf
点击展开 KTH4603 Datasheet_EN.pdf 完整内容
KTH4603 Series
Ultra-Low Power, High-Sensitivity 3D Hall Switch
Technical Support sales.global@conntek.com.cn
2024- 8- 21
Disclaimer
The information in this document is provided by Quanzhou KTsense Microelectronics Co., Ltd. (泉州昆 泰芯微电子科技有限公司) (hereafter referred to as ”KTsense Micro”) on an ”as is” basis for informational purposes only. KTsense Micro does not guarantee the accuracy of the information contained herein or the outcomes of its implementation. KTsense Micro assumes no liability for any errors or inaccuracies that may be present in this document. Users assume full responsibility for the application of the practices outlined in this document.
KTsense Micro owns the registered trademark CONNTEK, under which the CONNTEK brand sensors are marketed.
This document comes without any warranties, express or implied, including but not limited to warranties of merchantability, satisfactory quality, non-infringement, and fitness for a particular purpose. KTsense Micro, along with its employees, agents, and affiliates, is not liable for any losses arising from the use or reliance on this document.
This document is subject to change without prior notice and should not be construed as a commitment by KTsense Micro. Users should ensure they have the latest version of the relevant information before placing orders or integrating the product into their systems.
Users must evaluate the suitability of the product described in this document for their specific applications, including the required level of reliability and fitness for purpose.
This document and the described product may be subject to export control regulations. Export may require prior authorization from the competent authorities. The product is not intended, authorized, or warranted for use in applications requiring extended temperature ranges or unusual environmental conditions. High reliability applications, such as medical life-support or aviation systems, are specifically excluded.
The product may not be used for the development, production, maintenance, or storage of:
Chemical, biological, or nuclear weapons, including missile systems for such weapons.
Civil firearms, including spare parts or ammunition.
Defense-related products or materials for military or law enforcement use.
Applications that could cause serious harm to persons or property and that can be used as a means of violence in armed conflicts or similar situations.
No licenses or rights to any intellectual property of KTsense Micro or third parties are granted.
If this document is marked as “confidential”or similar, or if the content is reasonably understood to be confidential, the recipient must not disclose any part of the document to third parties without the express written consent of KTsense Micro. The recipient must take all necessary measures to maintain the confidentiality of the document, using at least the same degree of care as they use to protect their own confidential information, but no less than a reasonable degree of care. The recipient may only disclose the document to employees on a need-to-know basis, provided they are bound by confidentiality terms similar to those in this disclaimer. The document may only be used for the purpose for which it was received and may not be used for commercial purposes or to the detriment of KTsense Micro or its customers. These confidentiality obligations will last indefinitely but in any case, for no less than 10 years from the receipt of the document.
This disclaimer is governed by the laws of China, and any disputes arising from it will be subject to the exclusive jurisdiction of the courts in Shenzhen, China.
The invalidity of any provision in this disclaimer does not affect the validity of the remaining provisions. Previous versions of this document are repealed.
KTH4603 Series
Copyright
This document and its contents are protected by copyright law. No part of this document may be reproduced or distributed in any form or manner without the prior written consent of KTsense Micro.
Contact Information
For the latest version of this document, go to our website at https://en.conntek.com.cn/.
For additional information, please contact our Direct Sales team and get help for your specific needs:
| Region | Contact Information |
|---|---|
| Overseas | Email: sales.global@conntek.com.cn |
| China | Email: sales@conntek.com.cn |
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Table of Contents
1 Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Typical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Pin Definitions and Marking Information . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 SOT-23-3L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 SOT-23-6L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Output Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Product Model Name Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
9 Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
10 Electrical Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
11 Magnetic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
12 Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
13 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
14 Typical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
15 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
15.1 SOT-23-3L Package Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 15.2 SOT-23-6L Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
KTH4603 Series
1 Product Features
• [Low Power Consumption] –
[2.5 Hz version:][ 4] [.] [5] [ µA] [ @][ 2] [.] [5] [ V]
–
[5.0 Hz version:][ 7] [.] [1] [ µA] [ @][ 2] [.] [5] [ V]
• [Wide Operating Voltage Range:][ 2] [.] [5] [ V][ ∼] [5] [.] [5] [ V] • [Magnetic Field Threshold (B] OP [):][ 25][ Gs] • [Omnipolar Magnetic Field Detection] • [NMOS Open-Drain Output] • [Package: SOT-23-3L, SOT-23-6L] • [Operating Temperature Range:] [ −] [40] [ ◦] [C] [ ∼] [125] [ ◦] [C] • [Superior ESD Performance: HBM][ 6][ kV] • [RoHS Compliant]
2 Typical Applications
• [3D Magnetic Field Switch Detection] • [Anti-Tampering Detection for Meters (Electricity/Wa-]
ter/Gas)
• [Intelligent Door and Window Detection] • [Electric Garage Door Detection]
3 Overview
The KTH4603 series is a low-power Hall effect switch sensor with 3D omnipolar detection. The chip offers multiple switching frequencies and packaging options to suit various applications.
When the applied south or north magnetic flux density exceeds the operating point (B OP ), the chip outputs a low level and maintains it until the flux density drops below the release point (B RP ). The chip incorporates X, Y, Z ultra-sensitive low-offset Hall plates, multiplexer analog switches, differential amplifiers, Schmitt triggers, and NMOS open-drain output circuits. Advanced SPIN and digital filtering technology, as well as optimized clock control technology, ensure stable operating points and switching frequencies.
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KTH4603 Series
The KTH4603 series operates within a supply voltage range of 2 . 5 V to 5 . 5 V and is available in standard SOT-23-3L and SOT-23-6L packages.
Figure 1: SOT-23-3L
Figure 2: SOT-23-6L
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KTH4603 Series
4 Pin Definitions and Marking Information
4.1 SOT-23-3L
Figure 3: SOT-23-3L Pinout Top View
| Pin Name | Pin Number | Function Description |
|---|---|---|
| VDD OUT GND | 1 2 3 | Power Supply Input Output Ground |
4.2 SOT-23-6L
Figure 4: SOT-23-6L Pinout Top View
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KTH4603 Series
| Pin Name | Pin Number | Function Description |
|---|---|---|
| VDD TEST OUTX OUTY GND OUTZ | 1 2 3 4 5 6 | Power Supply Input Ground X-Axis Output Y-Axis Output Ground Z-Axis Output |
5 Functional Block Diagram
Figure 5: Functional Block Diagram
6 Output Characteristics
For the single output option of KTH4603XX-ST3, when a magnetic field perpendicular to any of the Hall sensors (X, Y, or Z direction) exceeds the B OPS (or falls below B OPN ), the chip outputs a low level (switch closed). The KTH4603XXST6 has three separate outputs (X, Y, or Z). When a magnetic field is applied to the Hall chip, and the magnetic flux density in the corresponding direction exceeds the operating point B OPS (or falls below B OPN ), the corresponding output pin outputs a low level (switch closed). When the magnetic flux density drops below the release point B RPS (or rises above B RPN ), the corresponding output pin outputs a high level (switch open). The difference between the operating point and release point flux density is the hysteresis (B HY ). This built-in hysteresis ensures stable output unaffected by mechanical vibration and magnetic noise. When powered on, if the magnetic flux density is between B OP and B RP, the
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KTH4603 Series
output is in an indeterminate state. The confirmed output state is determined by the first magnetic field that exceeds B OP or B RP .
Figure 6: Output Characteristics
7 Product Model Name Structure
8 Absolute Maximum Ratings
T A =25 [◦] C (unless otherwise specified) All voltages are referenced to GND.
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KTH4603 Series
| Item | Parameter Description | Min | Max | Unit |
|---|---|---|---|---|
| VDD IOUTPUT B TSTG TJ ESD | Supply Voltage Output Drive Current Magnetic Flux Density Storage Temperature Range Junction Maximum Temperature HBM ESD Capability | -0.3 - No Limit -50 - -6000 | 6 30 - 150 150 6000 | V mA Gs _◦C ◦_C V |
Note: Exceeding the absolute maximum ratings may cause permanent damage. Prolonged operation at the absolute maximum ratings may affect the reliability of the chip.
9 Operating Conditions
T A = 25 [◦] C (unless otherwise specified)
| Item | Parameter Description | Operating Condition | Value | Unit |
|---|---|---|---|---|
| VDD TA | Supply Voltage Range Operating Temperature Range | Operating Voltage Operating Temperature | 2_.5 ∼5.5 −40 ∼_125 | V _◦_C |
10 Electrical Parameters
T A =25 [◦] C, V DD =3 . 3 V (unless otherwise specified)
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KTH4603 Series
| Parameter Symbol | Parameter Description | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| VDD | Supply Voltage | - | 2_._5 | 3_._3 | 5_._5 | V |
| IDD | Wake-Up Current | VDD=2_.5 V_, TA=25 _◦_C | - | 2_._7 | - | mA |
| Sleep Current | VDD=2_.5 V_, TA=25 _◦_C | - | 2_._5 | - | _µ_A | |
| Average Current (KTH4603AA) | VDD=2_.5 V_, TA=25 _◦_C | - | 4_._5 | - | _µ_A | |
| Average Current (KTH4603AA) | VDD=5_.0 V_, TA=25 _◦_C | - | 6 | - | _µ_A | |
| Average Current (KTH4603AB) | VDD=2_.5 V_, TA=25 _◦_C | - | 7_._1 | - | _µ_A | |
| Average Current (KTH4603AB) | VDD=5_.0 V_, TA=25 _◦_C | - | 9 | - | _µ_A | |
| IOUTOFF | Output Leakage Current | _ | B | < | B_RP_ | _ |
| VOUT | Output Voltage | IOUT=2 mA, B>BOP | - | 20 | - | mV |
| TAWAKE | Wake-Up Time | - | 405 | - | _µ_s | |
| TPERIOD | Period | KTH4603AA Series | - | 408 | - | ms |
| KTH4603AB Series | - | 205 | - | ms |
Note: To maintain the chip’s low average power consumption, the internal sampling circuit periodically switches between Awake and Sleep states. Each axis of the sensor is powered on for 135 µ s before entering a low-power Sleep mode. This Awake and Sleep cycle occurs three times in each period, allowing the X, Y, and Z axes to be sampled during their respective cycles. During the brief Awake time, the chip samples and holds the magnetic field data, outputs the corresponding result, and locks the data at the end of each cycle. During each Sleep cycle, the output state remains in the current determined state, and the high/low output level does not affect the chip’s operating current.
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KTH4603 Series
11 Magnetic Parameters
T A =25 [◦] C, V DD =3 . 3 V (unless otherwise specified)
| Parameter Symbol | Parameter Description | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| BOPS | Operating Point (South Pole) | South pole to the left, bottom or side with printed markings. Refer to Figure 7 | - | 25 | 40 | Gs |
| BOPN | Operating Point (North Pole) | North pole to the left, bottom or side with printed markings. Refer to Figure 7 | _−_40 | _−_25 | - | Gs |
| BRPS | Release Point (South Pole) | South pole to the left, bottom or side with printed markings. Refer to Figure 7 | 5 | 15 | - | Gs |
| BRPN | Release Point (North Pole) | North pole to the left, bottom or side with printed markings. Refer to Figure 7 | - | _−_15 | _−_5 | Gs |
| BHY | Hysteresis | BHY= | BOP - BRP | - | 10 |
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KTH4603 Series
Figure 7: Three-Dimensional Magnetic Field Orientation
12 Performance Curves
Figure 8: Average Power Consumption VS Supply Voltage @TA=25 [◦] C
Figure 10: Low Output Voltage VS Supply Voltage @TA=25 [◦] C, I OUT = 20 mA
Figure 9: Average Power Consumption VS Operating Temperature @VDD=3.3V
Figure 11: Low Output Voltage VS Operating Temperature @VDD=3.3V, I OUT = 20 mA
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KTH4603 Series
Figure 12: Operating Period VS Supply Voltage @TA=25 [◦] C
Figure 14: X-Axis Magnetic Threshold VS Supply Voltage @TA=25 [◦] C
Figure 16: Y-Axis Magnetic Threshold VS Supply Voltage @TA=25 [◦] C
Figure 18: Z-Axis Magnetic Threshold VS Supply Voltage @TA=25 [◦] C
Figure 13: Operating Period VS Operating Temperature @VDD=3.3V
Figure 15: X-Axis Magnetic Threshold VS Operating Temperature @VDD=3.3V
Figure 17: Y-Axis Magnetic Threshold VS Operating Temperature @VDD=3.3V
Figure 19: Z-Axis Magnetic Threshold VS Operating Temperature @VDD=3.3V
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KTH4603 Series
Figure 20: X-Axis Magnetic Hysteresis VS Supply Voltage @TA=25 [◦] C
Figure 22: Y-Axis Magnetic Hysteresis VS Supply Voltage @TA=25 [◦] C
Figure 24: Z-Axis Magnetic Hysteresis VS Supply Voltage @TA=25 [◦] C
Figure 21: X-Axis Magnetic Hysteresis VS Operating Temperature @VDD=3.3V
Figure 23: Y-Axis Magnetic Hysteresis VS Operating Temperature @VDD=3.3V
Figure 25: Z-Axis Magnetic Hysteresis VS Operating Temperature @VDD=3.3V
13 Ordering Information
| Model | Package Type | Number of Pins of | Magnetic Threshold (B ) OP | Switching Frequency | Temperature |
|---|---|---|---|---|---|
| KTH4603AA-ST3 | SOT-23-3L | 3 | 25Gauss | 2.5Hz | _−40◦C ∼125◦_C |
| KTH4603AB-ST3 | SOT-23-3L | 3 | 25Gauss | 5Hz | _−40◦C ∼125◦_C |
| KTH4603AA-ST6 | SOT-23-6L | 6 | 25Gauss | 2.5Hz | _−40◦C ∼125◦_C |
| KTH4603AB-ST6 | SOT-23-6L | 6 | 25Gauss | 5Hz | _−40◦C ∼125◦_C |
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KTH4603 Series
14 Typical Applications
The KTH4603XX operates within an input voltage range of 2 . 5 V to 5 . 5 V . To filter noise at the chip’s power terminal, a filtering capacitor between the power supply and ground is recommended. This capacitor should be 1 µF and placed as close to the VDD pin as possible. Typically, the use of a PCB copper layer below the KTH4603XX device does not affect the magnetic flux density or interfere with the device’s performance since copper is not ferromagnetic. However, if nearby system components contain iron or nickel, they may unpredictably alter the magnetic flux density.
Figure 26: Typical Application of KTH4603XX-ST3
Figure 27: Typical Application of KTH4603XX-ST6
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KTH4603 Series
15 Package Information
15.1 SOT-23-3L Package Information
Figure 28: Package dimension of SOT-23-3L
| Symbol | Min (mm) | Typ (mm) | Max (mm) |
|---|---|---|---|
| A A1 A2 b c D E E1 e e1 L θ | - 0_.00 1.00 0.30 0.10 2.82 2.65 1.50 0.85 1.80 0.30 0◦_ | - - 1_.10 - - 2.95 2.80 1.65 0.95 1.90 0._45 - | 1_.25 0.1 1.15 0.50 0.20 3.02 2.95 1.70 1.05 2.00 0.60 8◦_ |
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KTH4603 Series
15.2 SOT-23-6L Package Information
Figure 29: Package dimension of SOT-23-6L
| Symbol | Dimensions In Millimeters Min Max | Dimensions In Inches Min Max |
|---|---|---|
| A A1 A2 b c D E1 E e e1 L L1 θ | 1_.050 1.280 0.000 0.130 1.050 1.150 0.300 0.500 0.100 0.200 2.820 3.020 1.500 1.720 2.650 3.000 0.950 (BSC) 1.800 2.000 0.300 0.600 0.600 (REF) 0◦ 8◦_ | 0_.041 0.050 0.000 0.005 0.041 0.045 0.012 0.020 0.004 0.008 0.111 0.119 0.059 0.068 0.104 0.118 0.037 (BSC) 0.071 0.079 0.012 0.024 0.024 (REF) 0◦ 8◦_ |
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📄 KTH4603XX产品手册V1.0.pdf
点击展开 KTH4603XX产品手册V1.0.pdf 完整内容
低功耗
2.5Hz版本：4.5uA@2.5V
5.0Hz版本：7.1uA@2.5V
宽工作电压范围：2.5V~5.5V
磁场阈值（Bop）
- 25Gs 阈值
全极磁场检测
NMOS开漏输出
封装：SOT-23-3L，SOT-23-6L
工作温度范围：-40℃~125℃
卓越的ESD性能：HBM 6KV
符合RoHS标准
2 典型应用
– 3D 磁场开关量检测
–电表/水表/燃气表防窃检测
–智能门窗检测
–电动车库门检测
3 概述
KTH4603系列是一款具有X、Y、Z三维全极检测的低功耗
霍尔效应开关传感器。该芯片可以提供多种开关工作频
率和封装形式以适配各种应用。
当施加的S极或N极磁感应强度超过工作点B OP 时，芯片输
出低电平，且保持低电平。直到S极或N极磁感应强度低
于释放点B RP 时，芯片输出高电平。芯片内置X,Y,Z三个
超灵敏低失调的霍尔盘、多路模拟开关、差分放大器、
施密特触发器和NMOS开漏输出电路，采用了先进SPIN及
数字滤波技术、优化时钟控制技术从而保证芯片稳定的
工作点和开关频率。
KTH4603系列可以在2.5V至5.5V的供电电压范围内工作，
并采用标准的SOT-23-3L、SOT-23-6L封装。
昆泰芯微电子科技有限公司 1
KTH4603 系列
微功耗超灵敏的3D 霍尔开关
SOT-23-3L
SOT-23-6L
KTH4603 系列
微功耗超灵敏的3D 霍尔开关
SOT-23-3L
KTH4603XX-ST3
SOT-23-6L
| 引脚名称 | 引脚序号 | 功能描述 |
|---|---|---|
| 供电输入端 | ||
| 输出端 | ||
| 地 |
KTH4603XX-ST6
| 引脚名称 | 引脚序号 | 功能描述 |
|---|---|---|
| 供电输入端 | ||
| 接地 | ||
| 地 | ||
| Z 轴输出 |
昆泰芯微电子科技有限公司 2
KTH4603 系列
微功耗超灵敏的3D 霍尔开关
6 开关输出特性
对于KTH4603XX-ST3的单输出选项，当一个磁场垂直于其中任何一个霍尔传感器，无论是X、Y还是Z方向，
当施加的磁感应强度大于B OPS (或小于B OPN )时，芯片输出为低(开关闭合)。KTH4603XX-ST6具有三个单独的输出(X,
Y或Z)，当有磁场施加于霍尔芯片时，无论X轴或Y轴或Z轴磁场只要对应方向的磁场强度超过了工作点B OPS (或小
于B OPN )时对应的输出引脚则输出低电平(开关闭合);当对应的磁感应强度降低到B RPS 点以下(或增加到B RPN 点以上)
对应的输出引脚则输出高电平(开关打开)。操作点和释放点的磁感应强度的差值是磁滞(B HY ),这种内置的磁滞
使得芯片可以稳定输出，不受机械振动和磁噪声所干扰。芯片上电工作后当磁感应强度在滞回区即B OP 和B RP 之间
时输出为不确定状态，可确认的输出状态是由第一个超出B OP 或B RP 的磁场来决定的。
昆泰芯微电子科技有限公司 3
KTH4603 系列
微功耗超灵敏的3D 霍尔开关
8 绝对最大额定值
TA=25℃(除特别说明外)
列出的所有电压均以GND 为参考。
| 项目 | 参数说明 | Min | Max | 单位 |
|---|---|---|---|---|
| VDD | 供电电压 | -0.3 | 6 | V |
| IOUTPUT | 输出驱动电流 | 30 | mA | |
| B | 磁感应强度 | 无上限 | GS | |
| TSTG | 存储温度范围 | -50 | 150 | ℃ |
| TJ | 结点最高耐温 | 150 | ℃ | |
| ESD HBM | 人体模型ESD 能力 | -6000 | 6000 | V |
注： 超过绝对最大额定值可能造成永久性损坏。长时间工作于绝对最大额定条件下可能会影响芯片的可靠性。
昆泰芯微电子科技有限公司 4
KTH4603 系列
微功耗超灵敏的3D 霍尔开关
TA=25℃(除特别说明外)
| 项目 | 参数说明 | 工作条件 | 数值 | 单位 |
|---|---|---|---|---|
| VDD | 供电电压范围 | 芯片工作 | 2.5～5.5 | V |
| TA | 工作温度范围 | 芯片工作 | -40～125 | oC |
10 电参数
TA=25℃,VDD=3.3V (除特别说明外)
| 参数符号 | 参数说明 | 测试条件 | 最小值 | 典型值 | 最大值 | 单位 |
|---|---|---|---|---|---|---|
| VDD | 供电电压 | 2.5 | 3.3 | 5.5 | V | |
| IDD | 唤醒功耗 | VDD=2.5V,TA=25℃ | - | 2.7 | - | mA |
| IDD | 休眠功耗 | VDD=2.5V,TA=25℃ | - | 2.5 | - | uA |
| IDD | 平均功耗 （KTH4603AA) | VDD=2.5V,TA=25℃ | - | 4.5 | - | uA |
| IDD | 平均功耗 （KTH4603AA) | VDD=5.0V,TA=25℃ | - | 6 | - | uA |
| IDD | 平均功耗 (KTH4603AB) | VDD=2.5V,TA=25℃ | - | 7.1 | - | uA |
| IDD | 平均功耗 (KTH4603AB) | VDD=5.0V,TA=25℃ | - | 9 | - | uA |
| IOUTOFF | 输出漏电流 | B | < | BRP | ||
| VOUT | 输出电压 | IOUT=2mA,B>BOP | - | 20 | - | mV |
| TAWAKE | 唤醒时间 | - | 405 | - | us | |
| Tperiod | 周期 | KTH4603AA系列 | - | 408 | - | ms |
| Tperiod | 周期 | KTH4603AB系列 | - | 205 | - | ms |
注：为了保持芯片的低平均功率，内部采样电路定时处于Awake/Sleep 状态，传感器每轴通电135us 之后进入
低功耗睡眠模式。这个Awake 和Sleep 周期在每个周期中发生三次，这样X、Y、Z 轴都在相应周期中进行采样，
短暂的“Awake”时间内芯片对磁场进行采样和保持并输出对应的结果，并在每个周期结束时进行数据锁定。
每个Sleep 睡眠周期期间的输出状态将被保持当前判断状态，同时输出为高/低电平的状态不影响芯片的工作
昆泰芯微电子科技有限公司 5
KTH4603 系列
微功耗超灵敏的3D 霍尔开关
11 磁参数
TA=25℃,VDD=3.3V (除特别说明外)
| 参数符号 | 参数说明 | 测试条件 | 最小值 | 典型值 | 最大值 | 单位 |
|---|---|---|---|---|---|---|
| BOPS | 工作点 | 南极向左，底部或有打印标记的面侧（参见图1) | - | 25 | 40 | GS |
| BOPN | BOPN | 北极向左，底部或有打印标记的面侧（参见图1) | -40 | -25 | - | GS |
| BRPS | 释放点 | 南极向左，底部或有打印标记的面侧（参见图1) | 5 | 15 | - | GS |
| BRPN | BRPN | 北极向左，底部或有打印标记的面侧（参见图1) | - | -15 | -5 | GS |
| BHY | 磁滞 | BHY=( | BOP - BRP | ) | - | 10 |
图 1
磁体取向的三维示意图
昆泰芯微电子科技有限公司 6
KTH4603 系列
微功耗超灵敏的3D 霍尔开关
平均功耗VS 供电电压@TA=25℃ 平均功耗VS 工作温度@VDD=3.3V
低输出电压VS 供电电压@TA=25℃ 低输出电压VS 工作温度@VDD=3.3V
IOUT=20mA IOUT=20mA
工作周期VS 供电电压@TA=25℃ 工作周期VS 工作温度@VDD=3.3V
昆泰芯微电子科技有限公司 7
KTH4603 系列
微功耗超灵敏的3D 霍尔开关
X 轴磁场阈值VS 供电电压@TA=25℃ X 轴磁场阈值VS 工作温度@VDD=3.3V
Y 轴磁场阈值VS 供电电压@TA=25℃ Y 轴磁场阈值VS 工作温度@VDD=3.3V
Z 轴磁场阈值VS 供电电压@TA=25℃ Z 轴磁场阈值VS 工作温度@VDD=3.3V
昆泰芯微电子科技有限公司 8
KTH4603 系列
微功耗超灵敏的3D 霍尔开关
X 轴磁场磁滞VS 供电电压@TA=25℃ X 轴磁场磁滞VS 工作温度@VDD=3.3V
Y 轴磁场磁滞VS 供电电压@TA=25℃ Y 轴磁场磁滞VS 工作温度@VDD=3.3V
Z 轴磁场磁滞VS 供电电压@TA=25℃ Z 轴磁场磁滞VS 工作温度@VDD=3.3V
昆泰芯微电子科技有限公司 9
KTH4603 系列
微功耗超灵敏的3D 霍尔开关
| 型号 | 封装形式 | 引脚数 | 磁场阈值（Bop） | 开关频率 | 温度 |
|---|---|---|---|---|---|
| KTH4603AA-ST3 | SOT-23-3L | 3 | 25Gauss | 2.5Hz | -40℃~125℃ |
| KTH4603AB-ST3 | SOT-23-3L | 3 | 25Gauss | 5Hz | -40℃~125℃ |
| KTH4603AA-ST6 | SOT-23-6L | 6 | 25Gauss | 2.5Hz | -40℃~125℃ |
| KTH4603AB-ST6 | SOT-23-6L | 6 | 25Gauss | 5Hz | -40℃~125℃ |
14 典型应用
KTH4603XX 在2.5V 到5.5 V 的输入电压范围内工作,为了滤除芯片电源端的噪声，KTH4603XX 也需要增加所有
芯片都必须增加的元件即电源和地之间的滤波电容，该电容大小推荐为1μF 且此电容尽量接近VDD 引脚。通
常，在KTH4603XX 器件下方使用PCB 铜层对磁感应强度没有影响，也不会干扰器件性能。这是因为铜不是铁磁
材料。但是，如果附近的系统组件含有铁或镍，它们可能会以不可预测的方式改变磁感应强度。
KTH4603XX-ST3 典型应用
KTH4603XX-ST6 典型应用
昆泰芯微电子科技有限公司 10
KTH4603 系列
微功耗超灵敏的3D 霍尔开关 SOT-23-3L 封装信息
| Symbol | Dimensions in Millimeters | Col3 | Col4 |
|---|---|---|---|
| Symbol | Min. | Typ. | Max. |
| A | - | - | 1.25 |
| A1 | 0.00 | - | 0.1 |
| A2 | 1.00 | 1.10 | 1.15 |
| b | 0.30 | - | 0.50 |
| c | 0.10 | - | 0.20 |
| D | 2.82 | 2.95 | 3.02 |
| E | 2.65 | 2.80 | 2.95 |
| E1 | 1.50 | 1.65 | 1.70 |
| e | 0.85 | 0.95 | 1.05 |
| e1 | 1.80 | 1.90 | 2.00 |
| L | 0.30 | 0.45 | 0.60 |
| θ | 0︒ | - | 8︒ |
昆泰芯微电子科技有限公司 11
KTH4603 系列
微功耗超灵敏的3D 霍尔开关 SOT-23-6L 封装信息
| Symbol | Dimensions In Millimeters | Col3 | Dimensions In Inches | Col5 |
|---|---|---|---|---|
| Symbol | Min | Max | Min | Max |
| A | 1.050 | 1.280 | 0.041 | 0.050 |
| A1 | 0.000 | 0.130 | 0.000 | 0.005 |
| A2 | 1.050 | 1.150 | 0.041 | 0.045 |
| b | ||||
| c | 0.100 | 0.200 | 0.004 | 0.008 |
| D | 2.820 | 3.020 | 0.111 | 0.119 |
| E1 | ||||
| E | 2.650 | 3.000 | 0.104 | 0.118 |
| e | 0.950（BSC） | 0.950（BSC） | 0.037（BSC） | 0.037（BSC） |
| e1 | ||||
| L | 0.300 | 0.600 | 0.012 | 0.024 |
| L1 | 0.600REF | 0.600REF | 0.024REF | 0.024REF |
| θ |
昆泰芯微电子科技有限公司 12
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