TLE4946-1L Datasheet, PDF (5/9 Pages) Infineon Technologies AG – High Precision Hall-Effect Switch

TLE4946-1L
AC/DC Characteristics
over operating range, unless otherwise specified. Typical values correspond to V_S=12V
and T_A=25°C.
Parameter
Symbol min. typ. max. Unit Conditions
Supply Current
Reverse Current
Output Saturation Voltage
Output Leakage Current
Output Fall Time
Output Rise Time
Chopper Frequency
Switching Frequency
Delay Time²⁾
Output Jitter³⁾
I_S
I_SR
V_QSAT
IQ_LEAK
t_f
t_r
f_OSC
f_SW
t_d
t_QJ
2
4
6
mA V_S = 2.7V .. 18V
0
0.2
1
mA V_S= -18V
-
0.3 0.6
V I_Q= 20mA
- 0.05 10 µA for V_Q=18 V
- 0.02 1
µs R_L= 1.2 kOhm ;C_L=50pF
-
0.4
1
µs R_L= 1.2 kOhm ;C_L=50pF
- 320 - kHz
0
-
15¹⁾ kHz
-
13
-
µs
-
1
- µs_RMS B = Square-Wave Signal
1kHz
Repeatability of magnetic
thresholds⁴⁾
B_REP
-
20
- µT_RMS ∆B/∆t>12mT/ms
Power-On Time⁵⁾
Thermal Resistance⁶⁾
t_PON
R_thJA
-
13
-
µs V_S >= 2.7V
-
- 190 K/W
P-SSO-3-2
1) _{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.
2) _{Systematic delay between magnetic threshold reached and output switching.}
3) _{Jitter is the unpredictable deviation of the output switching delay.}
4) _{BREP is equivalent to the noise constant.}
5) _{Time from applying VS >= 2.7 V to the sensor until the output state is valid.}
6) _{Thermal resistance from junction to ambient.}
e.g.: V_S=12.0 V, I_{S_typ}=4 mA, V_{QSAT_typ}=0.3 V, I_Q=20 mA => Power Dissipation P_dis=54.0 mW.
In T_A = T_j – (R_thJA * P_dis) = 175 °C – (190 K/W * 0.054 W) => T_A = 164.7 °C
Magnetic Characteristics
over operating range, unless otherwise specified. Typical values correspond to V_S=12V.
Parameter
Symbol Tj [°C] min. typ. max. Unit Conditions
Operate Point
TLE4946-1L
B_OP
mT
-40 11.3 15.4 19.5
25 11.0 15.0 19.0
150 10.5 14.3 18.1
Release Point
TLE4946-1L
B_RP
mT
-40 -19.5 -15.4 -11.3
25 -19.0 -15.0 -11.0
150 -18.1 -14.3 -10.5
Hysteresis
TLE4946-1L
B_HYS
mT
-40
-
-
-
25 22.0 30.0 38.0
150
-
-
-
Temperature
TC
ppm/°C
Compensation of
Magnetic Thresholds
-
- -350 -
Positive magnetic fields related with south pole of magnet to the branded side of package.
Note: Typical characteristics specify mean values expected over the production spread.
Data Sheet
5/9
2004-03-04