TLE4976L datasheet(5/9 Pages) INFINEON

5 / 9 page

TLE4976L

Data Sheet

5/9

2003-11-20

AC/DC Characteristics

over operating range, unless otherwise specified. Typical values correspond to VS=12V

and TA=25°C.

Parameter

Symbol

min.

typ.

max.

Unit

Conditions

Supply Current low

ISlow

B>Brp; VS = 3.0V .. 18V

Supply Current high

IShigh

B<Bop; VS = 3.0V .. 18V

Reverse Current

ISR

0.2

VS= -18V

Output Fall Time

0.4

1.6

µs

RS= 100 Ohm; Figure 3

Output Rise Time

0.4

1.6

µs

RS= 100 Ohm; Figure 3

Chopper Frequency

fOSC

320

kHz

Switching Frequency

fSW

kHz

Delay Time

µs

Output Jitter

TQJ

µsRMS Typ. Value for Square-Wave

Signal 1kHz

Repeatability of magnetic

thresholds

BREP

µTRMS Typ. Value for

∆B/∆t>12mT/ms

Power-On Time

tPON

µs

VS >= 3.0V

Thermal Resistance

P-SSO-3-2

RthJA

190

K/W

1) To operate the sensor at the max. switching frequency, the value of the magnetic signal

amplitude must be 1.4 times higher than for static fields. This is due to the -3dB corner frequency

of the low pass filter in the signal path.

2) Systematic delay between magnetic threshold reached and output switching.

3) Jitter is the unpredictable deviation of the output switching delay.

4) B

REP is equivalent to the noise constant.

5) Time from applying V

S >= 3.0 V to the sensor until the output state is valid.

6) Thermal resistance from junction to ambient.

e.g.: VS=12.0 V, RS=100 Ohms, IShigh_typ=14 mA => Power Dissipation Pdis=148.4 mW.

In TA = Tj – (RthJA * Pdis) = 175 °C – (190 K/W * 0.1484 W) => TA = 146.8 °C

Magnetic Characteristics

over operating range, unless otherwise specified. Typical values correspond to VS=12V.

Parameter

Symbol Tj [°C]

min.

typ.

max.

Unit

Conditions

Operate Point

TLE4976L

BOP

-40

150

1.1

1.0

0.9

4.1

4.0

3.8

6.1

6.0

5.8

Release Point

TLE4976L

BRP

-40

150

3.1

3.0

2.9

6.1

6.0

5.8

8.2

8.0

7.7

Hysteresis

TLE4976L

BHYS

-40

150

0.5

2.0

3.5

Temperature

Compensation of

Magnetic Thresholds

-200

ppm/°C

Positive magnetic fields related with south pole of magnet to the branded side of package.

Note:

Typical characteristics specify mean values expected over the production spread.

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