TLE4925 Infineon Technologies, TLE4925 Datasheet - Page 18

• Manufacturer Part Number: TLE4925
• Description: IC HALL EFFECT SENSOR SSO-3-6
• Manufacturer: Infineon Technologies
• Type: Special Purposer

Specifications of TLE4925

• Sensing Range: 45% ~ 55%
• Voltage - Supply: 3.3 V ~ 18 V
• Current - Supply: 9mA
• Current - Output (max): 20mA
• Output Type: Digital, Open Drain
• Features: High Sensitivity
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 3-SIP, SSO-3-06
• Operating Supply Voltage: 5 V or 9 V or 12 V
• Mounting Style: Through Hole
• Maximum Operating Temperature: + 195 C
• Minimum Operating Temperature: - 40 C
• Maximum Output Current: 50 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SP000013753; SP000269338; TLE4925; TLE4925INTB; TLE4925X

The systematic phase error includes the error due to the variation of the delay
time with temperature and the error caused by the resolution of the threshold. It
can be calculated in the following way:
Data Sheet
Figure17: Phase-Jitter
Noise
Bdiff_typ
∆ϕ
n
∆t
d
1
Bdiff_max
σ
d
3
σ
B
... systematic phase error due to the variation of the delay time over temperature
in °
… speed of the camshaft wheel in min
… variation of delay time over temperature in sec
Jitter (Repeatability)
Phase-Jitter
Systematic Phase Error ∆ϕ
∂B
∂
ϕ
ϕ
ϕ
Jitter
Jitter
∆
ϕ
_
_
d
max
typ
=
ϕ
=
=
360
∂
∂
∂
∂
Page 18 of 28
60
ϕ
B
ϕ
B
• °
•
•
The phase jitter is normally caused by the
analogue system noise. If there is an update
of the offset-DAC due to the algorithm, what
could happen after each tooth, then an
additional step in the phase occurs (see
description of the algorithm). This is not
included in the following calculations. The
noise is transformed through the slope of the
magnetic edge into a phase error. The phase
jitter is determined by the two formulas:
(
n
(
B
B
-1
•
neff
neff
∆
t
_
_
d
typ
max
)
)
10/02/2005