Data Sheet

7

Ver. 1.0

2018-02

TLE4959C Transmission Speed Sensor

General Characteristics

Note:

In the operating range the functions given in the functional description are fulfilled

Capacitance between IC supply &

ground pins

198

220

242

nF

capacitor type X8R,

Output capacitance between IC

output and ground pins

1.62 1.8

1.98 nF

capacitor type X8R,

rated voltage =50 V1)

Frequency range for direction

detection (hystersis)

0

–

1800 Hz

for increasing rotational

frequency

0

–

1500 Hz

for decreasing rotational

frequency

Magnetic signal frequency range

f

0–

10

kHz

Dynamic range of the magnetic field

of the differential speed channel

120

mT

ADC-range

Dynamic range of the magnetic field

of the direction channel

-

60

mT

ADC-range

Static range of the magnetic field of

the outer Hall probes in back-bias

configuration

0

-

550

mT

no wheel in fron of module

/Offset-DAC-Compensation

-range

Static range of the magnetic field of

the center Hall probe

450

mT

no wheel in fron of module

/Center-Offset-DAC-

Compensation-range

Allowed static difference between

outer probes

-

30

mT

no wheel in front of module

Normal operating junction

temperature

-40

–

175

°C

exposure time: max. 2500 h

-

-

185

°C

exposure time: max.

lifetime

Not operational lifetime

-40

150

°C

without sensor function.

Exposure time max 500 h @

150°C; increased time for

lower temperatures

according to Arrhenius-

Model, additive to other

lifetime

Temperature compensation range

of magnetic material

TC

-600

ppm internal compensation of

magnetic signal amplitude

of speed signal

1) Specified at room temperature, test condition at 25°C with 1V at 1kHz, temperature variation to be added

Table 3

General Operating Conditions (cont’d)

Parameter

Symbol

Values

Unit Note or Test Condition

Min. Typ. Max.