Data Sheet

22

1.10

2018-09-13

TLE4929C Crankshaft Sensor

Fully Programmable Crankshaft Sensor

4

EEPROM Description

Several options of TLE4929C can be programmed via an EEPROM to optimize the sensor algorithm to the

individual target wheel and application requirements. The EEPROM memory is organized in 2 customer lines,

whereas each line is composed of 16 data bits and additional 6 bits for error detection and correction, based

on ECC (Error Correction Code). For more detailed information about EEPROM access and programming an

EEPROM Programming manual is available.

Table 7

Temperature-Compensation for used magnetic material

Type

Description

TC (typical)

fits magnetic material

TLE4929C-XAN-M28 EEPROM pre programmed and locked

-825 ppm

SmCo, NdFeB

TLE4929C-XAF-M28 EEPROM unlocked

-1400 ppm

NdFeB, Fe

Table 8

EEPROM Address 0x0

15

14

13

12

11

10

987

6543

210

customer line #1

Table 9

Functional Description Address 0x0

Field

Bit

Type Description

TLE4929C

-XAN-M28

TLE4929C

-XAF-M28

not used

15

r

always read as “0”

0

0

STOP_ENABLE

14

rw

0 = Disable stop mode

1 = Enable stop mode

11

HIGH_SPEED

13

rw

0 = Enabled motion detection

1 = Same pulse and phase as before when

above 1.5kHz

11

DIR_CHANGE

12

rw

0 = 1/4 Criteria for direction change

1 = 1/8 Criteria for direction change

00

WATCH_DOG_EN

11

rw

0 = Watchdog off

1 = Watchdog on

00

not used

10..2 rw

to be set to “000000000”

000000000 000000000

PULSE_WIDTH

1

rw

0 = Default pulse length for all pulses

1 = All pulses shortened by 4µs (GM-pullup)

00

POLE_WHEEL

0

rw

0 = Back bias self calibration on startup –

back bias applications

1 = Back bias in center and differential path

set to ~0mT

01

Table 10

EEPROM Address 0x1

15

14

13

12

11

10

987

6543

210

customer line #2