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3275

更新时间： 2024-11-09 12:54:59

品牌	Logo	应用领域
急速微 - ALLEGRO		输出元件
页数	文件大小	规格书
4页	67K
描述
COMPLEMENTARY-OUTPUT HALL-EFFECT LATCH

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3275 数据手册

3275

COMPLEMENTARY-OUTPUT

HALL-EFFECT LATCH

Type UGN3275K latching Hall-effect sensors are bipolar inte-

grated circuits designed for electronic commutation of brushless dc

motors. They feature dual complementary outputs. The latches are

typically used to sense matched magnetic flux densities of alternating

polarity from multipole ring magnets.

Each sensor IC includes a Hall voltage generator, operational

amplifier, Schmitt trigger, voltage regulator, and dual bipolar output

transistors. The regulator allows use of the integrated circuit with

supply voltages of 4.5 V to 24 V.

If the Hall cell is exposed to a magnetic flux density greater than

the operate threshold (B_OP), OUTPUT goes low (turns on) and

OUTPUT goes high (turns off). The outputs will hold (latch) this state

until magnetic field reversal exposes the Hall cell to a magnetic flux

density below the release threshold (B_RP) when OUTPUT will go high

(off) and OUTPUT will go low (on). This state is also latched. Under

any condition one output is on while the other is off. Because the

operating state switches only with magnetic field reversal, and not

merely with a change in the strength, these integrated circuits qualify

as true Hall-effect latches.

Dwg. PH-002

These complementary-output Hall-effect latches are supplied in a

four-pin plastic SIP, 0.200" (5.08 mm) wide, 0.130" (3.3 mm) high, and

0.060" (1.54 mm) thick.

Pinning is shown viewed from branded side.

FEATURES

■ Operable with Multipole Ring Magnets

■ High Reliability

■ Small Size

■ Output Compatible with All Digital Logic Families

■ 4.5 V to 24 V Operation

ABSOLUTE MAXIMUM RATINGS

■ High Hysteresis Level Minimizes Stray-Field Problems

■ Complementary Outputs

Power Supply, V_CC. . . . . . . . . . . . . . . . 25 V

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

Output OFF Voltage, V_OUT. . . . . . . . . . 25 V

Output ON Current, I_OUT. . . . . . . . . . 50 mA

Operating Temperature Range,

T_A. . . . . . . . . . . . . . . . . -20°C to +85°C

Storage Temperature Range,

T_S. . . . . . . . . . . . . . . . -65°C to +150°C

Always order by complete part number: UGN3275K .

12 3 4

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