3197 datasheet(3/12 Pages) ALLEGRO

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3197

PROTECTED, HIGH-TEMP.,

OPEN-COLLECTOR

HALL-EFFECT LATCH

www.allegromicro.com

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Operate Point

BOP

TA = -40

°C

130

200

TA = +25

°C

110

160

TA = +150

°C

105

150

Release Point

BRP

TA = -40

°C

-200

-140

-60

TA = +25

°C

-160

-120

-50

TA = +150

°C

-150

-100

-40

Hysteresis

Bhys

TA = -40

°C

150

270

—

(BOP - BRP)TA = +25

°C

130

230

—

TA = +150

°C

110

205

—

ELECTRICAL CHARACTERISTICS

over operating voltage and temperature range (unless otherwise specified).

MAGNETIC CHARACTERISTICS over operating voltage range (unless otherwise specified).

NOTES: BOP = magnetic operate point (output turns ON); BRP = magnetic release point (output turns OFF).

As used here, negative flux densities are defined as less than zero (algebraic convention).

Typical values are at TA = +25°C and VCC = 12 V (unless otherwise specified).

* Fault condition. Device is shut down and operation is not possible.

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Supply Voltage

VCC

Operating (but VCC x ICC vs TA limited)

VCC(UV)

Overvoltage Shutdown*

VCC(OV)

B > BOP

—

Undervoltage Shutdown*

VCC(UV)

B > BOP

3.7

—

4.5

Output Voltage, On

VOUT(SAT)

B > BOP, IOUT = 30 mA, VCC = 16 V

—

0.2

0.5

Output Leakage Current

IOFF

VOUT = 26 V

—

5.0

µA

Output Clamp Voltage

VOUT(CLMP)

B < BRP, VCC = 115 V*, IOUT = 0

Output Current Limit

IOUTMAX

B > BOP, VOUT = 12 V

355070

Supply Current

ICC

B < BRP, VCC = 24 V, IOUT = 0

—

5.2

9.0

B > BOP, VCC = 24 V, IOUT = 20 mA

—

7.8

VCC = +115 V*

—

8.0

Reverse Battery Current*

IRCC

VRCC = -35 V*

—

-0.5

-5.0

VRCC = -100 V*

—

-2.0

-10

Output Rise Time

CL = 20 pF, RL = 330

Ω, VBB = 12 V

—

0.05

2.0

µs

Output Fall Time

CL = 20 pF, RL = 330

Ω, VBB = 12 V

—

0.30

5.0

µs

Thermal Shutdown Temp.*

165

—

190

°C

Package Thermal Resist.

RθJA

“LT” Package

—

258

—

°C/W

“U” Package

—

183

—

°C/W

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