TLE4976-2K Datasheet, PDF (11/16 Pages) Infineon Technologies AG – Hall Effect Switch with Current Interface

TLE4976-2K
Specification
3.4
Electrical and Magnetic Characteristics
Product characteristics involve the spread of values guaranteed within the specified voltage and ambient
temperature range. Typical characteristics are the median of the production.
Table 5 General Electrical Characteristics¹⁾
Parameter
Symbol
Values
Unit Note / Test Condition
Min. Typ. Max.
Supply current low
Supply current high
I_SLOW
I_SHiGH
5
6
7
mA B > B_RP
V_S = 3V ... 18V
12
14
17
mA B < B_OP
VS = 3V ... 18V
Reverse current
I_SR
–
0.2 mA V_S = -18V
Output fall time
t_f
–
0.4 1.6 µs R_S = 100Ω
Output rise time
t_r
–
0.4 1.6 µs
Chopper frequency
Switching freq.
Delay time³⁾
Output jitter⁴⁾
f_OSC
–
320
kHz
f_SW
–
15²⁾ kHz
t_d
–
13
µs
t_QJ
–
1
–
µs_RMS Typical value for square wave
signal 1kHz
Power-on time⁵⁾
Thermal resistance⁶⁾
t_PON
R_thJA
–
13
–
µs
V_S ≥ 3.0V
–
100 –
K/W SC59
1) over operating range, unless otherwise specified. Typical values correspond to V_S = 12V and T_A = 25°C
2) To operate the sensor at the max. switching frequency, the value of the magnetic signal amplitude must be 1.4 times higher
than for static fields. This is due to the - 3dB corner frequency of the low pass filter in the signal path
3) Systematic delay between magnetic threshold reached and output switching
4) Jitter is the unpredictable deviation of the output switching delay
5) Time from applying V_S ≥ 3.0V to the sensor until the output state is valid
6) Thermal resistance from junction to ambient
Calculation of the ambient temperature:
e.g. for V_S = 12.0V, R_S = 100W, I_SHIGHtyp = 14mA :
Power Dissipation: P_DIS = 148.4mW.
In T_A = T_j – (R_thJA x P_DIS) = 175°C – (100K/W x 0.15W)
Resulting max. ambient temperature: T_A = 160°C
Data Sheet
9
Rev. 1.2, 2010-08-05