MX887P Просмотр технического описания (PDF) - Clare Inc => IXYS

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производитель

MX887P

μPower Hall-Effect Switch

Clare Inc => IXYS 

MX887P

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 MX887P μPower Hall-Effect Switch consists of a

Hall element, small-signal amplifier, latch, and CMOS

push-pull 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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