TLE4953x

Specifications

Data Sheet

14

Version 4.1, 2018-01-02

3.5

Timing Characteristics

PWM Current Interface

Between each magnetic transition and the rising edge of the corresponding output pulse the output current is Low

for tpre-low in order to allow reliable internal conveyance. Following the signal pulse (current is High) is output. If

the magnetic direction field exceeds

ΔBDir, the output pulse lengths are 60 µs or 120 µs respectively, depending

on the direction of rotation. If the magnitude of the magnetic direction field is below

ΔBdir, the output pulses are

suppressed when the frequency is below fDR,max (see section vibration suppression). For magnitudes of the

magnetic differential field below

ΔBLimit the signal is lost. Speed pulse occur only at the first pulse after start up

or above fDR, max. If no magnetic differential signal change is detected the IC will remain in calibrated mode. No

internal reset are generated - therefore a zero speed operation is possible.

Magnetic differential field

change required for

startup with 1st rising edge

peak to peak value

3.5

mT

± 2

%

± 3

%

12000 Hz

± 3

%

± 4.5

%

Jitter at board net ripple5)

--

± 2

%

1)

2) 99% criterion stands for 1 out of 100 pulses is missing.

will be the speed pulse.

4) High frequency behaviour not subject to production test - verified by design/characterization.

5) Not subject to production test, verified by design/characterization.

Table 3-4

Electrical Characteristics

(cont’d)

Parameter

Symbol

Values

Unit

Note / Test Condition

Min.

Typ.

Max.