Datasheet > A1174

A1174

更新时间： 2024-11-15 04:02:43

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
13页	423K
描述
Ultrasensitive Hall Effect Latch with Internally or Externally Controlled Sample and Sleep Periods for Track Ball and Scroll Wheel Applications

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

A1174 数据手册

A1174

Ultrasensitive Hall Effect Latch

with Internally or Externally Controlled Sample and Sleep Periods

for Track Ball and Scroll Wheel Applications

Features and Benefits

▪ Micro-power latch operation

Description

TheA1174isamicro-power,Hall-effectlatchforuseinportable

devices that employ rotational detection systems, and have a

power supply voltage between 1.65 and 3.5 V. The device has

a single push-pull output structure and requires no external

pull-up resistor for reliable operation.

▪ 1.65 to 3.5 V battery operation

▪ Push-pull output eliminates the need for an external pull-

up resistor

▪ User configured, internally or externally controlled sample

and sleep periods

When a sufficient positive magnetic field is present on the

device, the device output transitions to the low state and is

latched in this state until a negative field of sufficient strength

latches the device output into the high state.The latched output

is ideal when using multiple sensors in rotational speed and

direction sensing systems (for example, track ball and scroll

bar systems in portable devices).

▫ Floating the two clock pins results in the use of a fixed

sampling clock internal to the sensor

▫ Toggling the clock pins allows the user to control the

sampling and sleep times of the sensor for extreme low

power operation

▪ External control of the clock pins allows the user to

implement synchronous sampling of multiple sensors in

direction detection systems

▪ Chopper stabilization

▫ Superior temperature stability

▫ Extremely low switchpoint drift

▫ Insensitive to physical stress

▪ Solid state reliability

The device includes an innovative clocking scheme that

satisfies the micro-power needs of almost any application,

including track balls for PDAs and cell phones. Using the

EXTERNAL_CLK and DUAL_CLK pins as described in this

datasheet, the device can be set into various working modes.

▪ Small size

In Dual Clock mode, the device switches between predefined

slowandfastsamplingrates.Theaveragecurrentconsumption

of the device is extremely low when rotation is not detected.

In External Clock mode, the user sets the clock rate for the

device to achieve the required on and off times for controlling

average power. This user-determined clocking also helps to

Package: 6-contact MLP/DFN (suffix EW)

1.5 mm × 2 mm × 0.40 mm

Continued on the next page…

Not to scale

B_OP

Magnetic Flux

Density

B_RP

–B

A1174 Output

Off

Figure 1. Timing diagram for output switching

A1174-DS

12 3 4 5 6 7...13

中文翻译

下载PDF

与A1174相关器件

型号	品牌	获取价格	描述	数据表
A1174EEWLT-T	ALLEGRO	获取价格	Hall Effect Sensor, -5.5mT Min, 5.5mT Max, 300mV, Rectangular, Surface Mount, 1.50 X 2 MM,
A1175-HBL	ETC	获取价格	SPECIFICATION FOR APPROVAL
A1175-HBT	ETC	获取价格	SPECIFICATION FOR APPROVAL
A1175-HSL	ETC	获取价格	SPECIFICATION FOR APPROVAL
A1175-HST	ETC	获取价格	SPECIFICATION FOR APPROVAL
A1175-LBL	ETC	获取价格	SPECIFICATION FOR APPROVAL
A1175-LBT	ETC	获取价格	SPECIFICATION FOR APPROVAL
A1175-LSL	ETC	获取价格	SPECIFICATION FOR APPROVAL
A1175-LST	ETC	获取价格	SPECIFICATION FOR APPROVAL
A1175-MBL	ETC	获取价格	SPECIFICATION FOR APPROVAL

与A1174相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

7
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

4
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

30
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

13

产品中心

服务支持

精选活动

关于我们

帮助中心

A1174

A1174 数据手册

与A1174相关器件

与A1174相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

A1174

A1174 数据手册

与A1174相关器件

与A1174相关文章

您还可以找

您在本页遇到什么问题？