MX887DHTTR【PDF 4/6 页】MICROPOWER HALL-EFFECT SWITCH

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Sheet目录62

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INTEGRATED CIRCUITS DIVISION

MX887D

www.ixysic.com

R01

1.5 ESD Rating

1.6 Magnetic Characteristics

Over operating voltage and temperature range unless otherwise specified.

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

2. B

OPX

= operating point (output turns ON); B

RPX

= release point (output turns OFF).

3. Typical data is at 25癈 and V

SUPPLY

= 3V.

2 Circuit Description

The MX887D mPower 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.

ESD Rating (Human Body Model)

2000V

Parameter

Conditions

Symbol

Minimum

Typical

Maximum

Units

Operating Points

Due to North Pole Applied

North Pole to Branded Side

OPN

-60

Due to South Pole Applied

South Pole to Branded Side

OPS

Release Points

Due to North Pole Applied

North Pole to Branded Side

RPN

-6

Due to South Pole Applied

South Pole to Branded Side

RPS

Hysteresis

| B

OPX

- B

RPX

HYS

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