MX887D 查看數據表（PDF） - Unspecified

零件编号

产品描述 (功能)

生产厂家

MX887D

uPower Hall-Effect Switch

Unspecified 

MX887D

1.5 ESD Rating

ESD Rating (Human Body Model)

2000V

1.6 Magnetic Characteristics

Over operating voltage and temperature range unless otherwise specified.

Parameter

Operating Points

Due to North Pole Applied

Due to South Pole Applied

Release Points

Due to North Pole Applied

Due to South Pole Applied

Hysteresis

Conditions

Symbol Minimum Typical Maximum Units

North Pole to Branded Side

BOPN

-60

-

-

G

South Pole to Branded Side BOPS

-

-

60

North Pole to Branded Side

BRPN

-

-

-6

G

South Pole to Branded Side BRPS

6

-

-

| BOPX - BRPX |

BHYS

-

5

-

G

Notes:

1. As used here, negative flux densities are defined as less than zero (algebraic convention); -50G<+10G.

2. BOPX = operating point (output turns ON); BRPX = release point (output turns OFF).

3. Typical data is at 25°C and VSUPPLY = 3V.

2 Circuit Description

The MX887D μPower Hall-Effect Switch consists of a

Hall element, small signal amplifier, latch, and

N-channel open-drain output. Offset cancellation

circuitry rejects errors in signal stages and the

influence of mechanical stress on the Hall element.

This technique, together with a precision threshold

generator and comparator, produces highly accurate

magnetic switch points. The Hall element is activated

for a small fraction of an operating cycle, then latched

in that sample state for the remainder of the period. By

using this technique, very low power consumption is

achieved.

4

www.clare.com

August 10, 2009

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