Product Summary

The A3212ELHLT is an ultra-sensitive, pole in de pen dent Hall-effect switch with a latched digital output. The A3212ELHLT is especial ly suited for operation in battery-operated, hand-held equip ment such as cellular and cordless tele phones, pagers, and palmtop com put ers. A 2.5 volt to 3.5 volt operation and a unique clocking scheme reduce the average op er at ing power requirements to less than 15 μW with a 2.75 volt supply. Unlike other Hall-effect switches, either a north or south pole of sufficient strength will turn the output on; in the absence of a magnetic field, the output is off. The polarity independence and minimal power requirement allow the A3212ELHLT to easily replace reed switches for superior reliability and ease of manufacturing, while eliminating the requirement for signal conditioning.

Parametrics

A3212ELHLT absolute maximum ratings: (1)Supply Voltage, VDD: 5 V; (2)Magnetic Flux Density, B: Unlimited; (3)Output Off Voltage, VOUT: 5 V; (4)Output Current, IOUT: 1 mA; (5)Junction Temperature, TJ: +170℃; (6)Operating Temperature, TA Range E: -40℃ to +85℃, Range L: -40℃ to +150℃; (7)Storage Temperature Range, TS : -65℃ to +170℃.

Features

A3212ELHLT features: (1)Micropower Operation; (2)Operation with North or South Pole; (3)2.5 V to 3.5 V Battery Operation; (4)Chopper Stabilized Superior Temperature Stability, Extremely Low Switch-Point Drift, Insensitive to Physical Stress; (5)ESD Protected to 5 kV; (6)Sol id-State Reliability; (7)Small Size; (8)Easily Manufacturable with Magnet Pole Independence.

Diagrams

A3212ELHLT pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
A3212ELHLT-T
A3212ELHLT-T

IC SWITCH HALL EFFECT SOT23W
Data Sheet
0-1: $0.61
1-10: $0.54
10-50: $0.48
50-100: $0.42
100-250: $0.37
250-500: $0.33
500-1000: $0.26
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
A3211
A3211
Other

Data Sheet
Negotiable 
A3211EEHLT-T
A3211EEHLT-T

IC SWITCH HALL EFFECT 2X2MLPD
Data Sheet
0-1: $0.57
1-10: $0.50
10-50: $0.46
50-100: $0.40
100-250: $0.35
250-500: $0.31
500-1000: $0.25
A3211EELLT-T
A3211EELLT-T

IC SWITCH HALL EFFECT 2X2MLPD
Data Sheet
0-1: $0.53
1-10: $0.47
10-50: $0.43
50-100: $0.37
100-250: $0.33
250-500: $0.29
500-1000: $0.23
A3211ELHLT-T
A3211ELHLT-T

IC SWITCH HALL EFFECT SOT23W
Data Sheet
0-1: $0.74
1-10: $0.65
10-50: $0.59
50-100: $0.51
100-250: $0.45
250-500: $0.40
500-1000: $0.32
A3211EUA-T
A3211EUA-T

IC SWITCH HALL EFFECT 3-SIP
Data Sheet
Negotiable 
A3212
A3212
Other

Data Sheet
Negotiable