3280 datasheet(3/11 Pages) ALLEGRO

3 / 11 page

3280, 3281, AND 3283

CHOPPER-STABILIZED,

PRECISION

HALL-EFFECT LATCHES

www.allegromicro.com

Part Numbers1

A3280

A3281

A3283

Characteristic

Test Conditions

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Units

Operate Point, BOP

at TA = +25°C and TA = max.

5.0

100

150

180

at TA = -40°C

5.0

–

100

–

200

Release Point, BRP

at TA = +25°C and TA = max.

-40

-23

-5.0

-90

-50

-15

-180

-150

-100

at TA = -40°C

-40

–

-5.0

-90

–

-15

-200

–

-100

Hysteresis, Bhys

at TA = +25°C and TA = max.

100

180

–

300

360

(BOP - BRP)

at TA = -40°C

–

180

–

360

NOTES:1. Complete part number includes a suffix to identify operating temperature range (E or L) and

package type (LH, LT, or UA).

2. As used here, negative flux densities are defined as less than zero (algebraic convention) and -50 G is less than +10 G.

3. Typical Data is at TA = +25°C and VCC = 12 V and is for design information only.

4. 1 gauss (G) is exactly equal to 0.1 millitesla (mT).

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Supply Voltage Range

VCC

Operating, TJ < 165°C1

4.2

–

Output Leakage Current

IOFF

VOUT = 24 V, B < BRP

––

µA

Output Saturation Voltage

VOUT(SAT)

IOUT = 20 mA, B > BOP

–

185

500

Output Current Limit

IOM

B > BOP

–

Power-On Time

tpo

VCC > 4.2 V

–

µs

Chopping Frequency

–

340

–

kHz

Output Rise Time

RL = 820 Ω, CL = 20 pF

–

0.2

2.0

µs

Output Fall Time

RL = 820 Ω, CL = 20 pF

–

0.1

2.0

µs

Supply Current

ICC

B < BRP, VCC = 12 V

–

3.0

8.0

B > BOP, VCC = 12 V

–

4.0

8.0

Reverse Battery Current

ICC

VRCC = -30 V

–

-5.0

Zener Voltage

VZ + VD

ICC = 15 mA, TA = 25°C

283237

Zener Impedance

zz + zD

ICC = 15 mA, TA = 25°C–

–

Ω

NOTES:1. Maximum voltage must be adjusted for power dissipation and junction temperature.

2. BOP = operate point (output turns on); BRP = release point (output turns off).

3. Typical Data is at TA = +25°C and VCC = 12 V and is for design information only.

ELECTRICAL CHARACTERISTICS over operating temperature range.

MAGNETIC CHARACTERISTICS over operating voltage range.

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