Datasheet > 3280_03

3280_03

更新时间： 2024-10-14 02:58:27

品牌	Logo	应用领域
急速微 - ALLEGRO		锁存器斩波器
页数	文件大小	规格书
12页	338K
描述
CHOPPER-STABILIZED, PRECISION HALL-EF FECT LATCHES

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3280_03 数据手册

3280, 3281,

AND 3283

CHOPPER-STABILIZED, PRECISION

HALL-EFFECT LATCHES

The A3280--, A3281--, and A3283-- Hall-effect latches are extremely

temperature-stable and stress-resistant sensors especially suited for op-

eration over extended temperature ranges to +150°C. Superior high-tem-

perature performance is made possible through dynamic offset cancella-

tion, which reduces the residual offset voltage normally caused by device

overmolding, temperature dependencies, and thermal stress. The three

devices are identical except for magnetic switch points.

Suffix '–LT' & '–UA' Pinning

(SOT89/TO-243AA & ultra-mini SIP)

PTCT

Each device includes on a single silicon chip a voltage regulator,

Hall-voltage generator, small-signal amplifier, chopper stabilization,

Schmitt trigger, and a short-circuit protected open-collector output to

sink up to 25 mA. A south pole of sufficient strength will turn the output

on. A north pole is necessary to turn the output off. An on-board regula-

tor permits operation with supply voltages of 4.2 to 24 volts.

Three package styles provide a magnetically optimized package for

most applications. Package type LH is a modified SOT23W surface-

mount package, LT is a miniature SOT89/TO-243AA transistor package

for surface-mount applications; while UA is a three-lead ultra-mini-SIP

for through-hole mounting. Each package type is also available in a lead

(Pb) free version (suffix, –T) , with a 100% matte tin plated leadframe.

Dwg. PH-003-2

Pinning is shown viewed from branded side.

ABSOLUTE MAXIMUM RATINGS

FEATURES

at T = +25°C

Supply Voltage, V_CC.......................... 26.5 V

Reverse Battery Voltage, V_RCC.......... -30 V

Magnetic Flux Density, B ............ Unlimited

Output Off Voltage, V_OUT.................... 26 V

Continuous Output Current,

I_OUT......................................... 25 mA*

Reverse Output Current, I_OUT......... -50 mA

Package Power Dissipation, P_DSee Graph

Junction Temperature, T_J................ +165°C

Operating Temperature Range, T_A

■

Symmetrical Switch Points

Resistant to Physical Stress

Superior Temperature Stability

Output Short-Circuit Protection

Operation From Unregulated Supply

Reverse Battery Protection

Solid-State Reliability

Small Size

Range ‘E’..................... -40°C to +85°C

Range ‘L’.................... -40°C to +150°C

Storage Temperature Range,

T_S.............................. -65°C to +170°C

*Internal current limiting is intended to protect

the device from output short circuits.

12 3 4 5 6 7...12

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