HAL855
DATA SHEET
3.8. Diagnosis Functions
The HAL855 features various diagnosis functions, such as undervoltage detection and open-circuit detection. A
description of the sensor’s behavior is shown in the table below (Typical Characteristics for TJ = 25 °C).
Parameter
Min.
3.0
−
Typ.
3.5
−
Max.
4.0
−
Unit
V
Output Behavior
Undervoltage Detection Level V
No PWM output signal (output on high-level)
No PWM output signal (output on high-level)
No PWM output signal
DD, UV
Open V Line
−
DD
Open GND Line
−
−
−
−
Note: The undervoltage detection is activated only after locking the sensor!
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Nov. 26, 2008; DSH000149_003EN
Micronas