MLX90288 Datasheet, PDF (8/19 Pages) Melexis Microelectronic Systems – SMD Programmable Linear Hall Sensor IC Featuring Analog Ratiometric Output

MLX90288
SMD Programmable Linear Hall Sensor IC
Featuring Analog Ratiometric Output
Figure 2: Operating, undervoltage and reset functionality
In case the supply is raised above the V_PROGRISE threshold (which has built-in hysteresis: for the falling edge,
V_PROGFALL), but below the V_OVER threshold, the IC goes in programming mode: the output becomes high
impedant and after proper commands coming from the programming unit (PTC04), the IC can respond on the
output pin as well. The communication protocol on the output (PTC-04 communication) is bi-directional. If the
supply is higher than the V_OVER threshold, the internal regulated supply is disconnected from the external
supply, as are most blocks of the IC. A reset will be the result when the supply is restored.
5.8 EMC/ESD Specification
Operating parameter valid for T_A = – 40°C to + 150°C & V_DD = + 4.5V to + 5.5V (unless specified otherwise).
Item
Micro-interrupt without reset⁽¹⁾
ESD Human Body Model⁽²⁾
ESD Charged Device Model⁽³⁾
Symbol
µI
ESD_HBM
ESD_CDM
Remarks
Min Typ Max
Unit
-
-
0.1
µs
±2
kV
± 500
V
Table 7: EMC/ESD Specification
(1) If the digital regulated voltage drops below POR level, the ASIC will reset nearly immediately; this is a
necessity from a DFMEA point of view. The only way to make the ASIC immune for longer micro-
interrupts is to have external components (Rseries and Csupply) filtering these micro-interrupts for
the ASIC. Introducing an Rseries in the supply line will have a negative impact on ratiometricity.
(2) ESD HBM test performed on all pins according to JEDEC-22-A-114 standard.
(3) ESD CDM test performed on all pins according to AEC-Q100-011 standard.
3901090288
Rev 002
Page 8 of 19
May/12