MLX90316KDC-BDG Datasheet, PDF (29/45 Pages) Melexis Microelectronic Systems – Rotary Position Sensor IC

MLX90316
Rotary Position Sensor IC
…MLX90316 Fault Mode
Fault Mode
ADC Monitor (Analog to Digital
Converter)
Action
Set Outputs in Diagnostic low.
Normal Mode with immediate
recovery without CPU Reset
Effect on Outputs
Immediate Diagnostic low
Remark
ADC Inputs are Shorted
Undervoltage Mode
At Start-Up, wait Until VDD > 3V.
During operation, CPU Reset after
3 ms debouncing
Firmware Flow Error
CPU Reset
Read/Write Access out of
physical memory
Write Access to protected area
(IO and RAM Words)
Unauthorized entry in
“SYSTEM” Mode
VDD > 7 V
CPU Reset
CPU Reset
CPU Reset
Set Output High Impedance
(Analog)
VDD > 9.4 V
IC is switched off (internal supply)
CPU Reset on recovery
Broken VSS⁽²⁴⁾
CPU Reset on recovery
Broken VDD⁽²⁴⁾
CPU Reset on recovery
- VDD < POR level =>
Outputs high impedance
- POR level < VDD < 3 V =>
Outputs in Diagnostic low.
Immediate Diagnostic low
Immediate Diagnostic low
Immediate Diagnostic low
Immediate Diagnostic low
Pull down resistive load =>
Diag. Low
Pull up resistive load =>
Diag. High⁽²³⁾
Pull down resistive load =>
Diag. Low
Pull up resistive load =>
Diag. High
Pull down resistive load =>
Diag. Low
Pull up resistive load =>
Diag. High
Pull down resistive load =>
Diag. Low
Pull up resistive load =>
Diag. High
Intelligent Watchdog
(Observer)
100% Hardware detection
100% Hardware detection
100% Hardware detection
100% Hardware detection
100% Hardware detection
100% Hardware detection.
Pull down load ≤ 10 kΩ to
meet Diag Low spec:
- < 2% VDD (temperature
suffix S and E)
- < 4% VDD ( temperature
suffix K)
- contact Melexis for
temperature suffix L
No valid diagnostic for
VPULLUP = VDD.
Pull up load (≤ 10kΩ) to
VPULLUP > 8 V to meet Diag
Hi spec > 96% Vdd.
24 _{Not Valid for SPI Version}
3901090316
Rev10
Page 29 of 45
Jul/13