Data Sheet

9

1.10

2018-09-13

TLE4929C Crankshaft Sensor

Fully Programmable Crankshaft Sensor

Note:

The listed Electrical and magnetic characteristics are ensured over the operating range of the

integrated circuit. Typical characteristics specify mean values expected over the production spread.

If not other specified, typical characteristics apply at TAmb = 25°C and VS =5V.

Global run out (speed and

direction channel)

Runoutgl

obal 4)

1.0

–

1.67 -

Ratio = Amplitude(max)pkpk /

Amplitude(min)pkpk

1.0

–

2.5

-

Ratio = Amplitude(max)pkpk /

Amplitude(min)pkpk . Reduced

performance in Stop-Start-

behavior.

Magnetic overshoot of

signature region in speed

signal. Magnetic overshot from

tooth to tooth (polepair to

polepair)

Runoutto

oth,tooth

4)

0.8

1.2

1.6

-

Ratio = Amplitude(signature) /

Amplitude(before/after). Valid for

toothed target wheel.

0.7

1.4

2.5

-

Ratio = Amplitude(signature) /

Amplitude(before/after). Valid for

magnetic target wheel.

Output Protocol Variants

Crankshaft without direction

detection: Output follows

profile of target wheel

–

–

–

–

–

Output “Q” changes state (“LOW”

or “HIGH”) in the middle of the

tooth / middle of the notch

Standard crankshaft protocol

with direction

tfwd

38

45

52

µs

VPullup = 5 V, RPullup =1.2 kΩ (+/-

10%), CQ = 1.8 nF (+/-15%),

valid between 50% of falling edge

to 50% of next rising edge

tbwd

76

90

104

µs

Optional crankshaft protocol

with direction

tfwd

38

45

52

µs

tbwd

113

135

157

µs

1) Application parameter, IC does not increase the rise time (max. value), Values are calculated and not tested

2) Smallest setting is not recommended for harsh environment: long tooth, long notch, vibration, run-out of target-

wheel.

3) Parameter not subject to productive test. Verified by characterization in the laboratory based on jitter-measurement

> 1000 falling edges.

4) Parameter not subject to productive test. Verified by laboratory characterization / design.

Table 4

Electrical and Magnetic Parameters (Continued)

Parameter

Symbol

Values

Unit

Note or Test Condition

Min. Typ. Max.