Understanding PGOOD Behavior in LM5069 for Power Management
Explore the custom design behavior of PGOOD in LM5069, where the signal registers high momentarily after device enablement. Discover the timings and nuances of PGOOD behavior on evaluation boards and learn about the duration and implications of PGOOD signal transitions in power management circuits.
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Presentation Transcript
LM5069 PGood
PGOOD BEHAVIOR CUSTOM DESIGN PGOOD MOMENTARILY REGISTERS HIGH AFTER DEVICE IS ENABLED. NOTE: VIN ALREADY AT REGUALTION 2
PGOOD BEHAVIOR CUSTOM DESIGN PGOOD MOMENTARILY REGISTERS HIGH 11.5uS AFTER DEVICE IS ENABLED 3
PGOOD BEHAVIOR CUSTOM DESIGN PGOOD MOMENTARILY REGISTERS HIGH FOR 532nS AFTER DEVICE IS ENABLED 4
PGOOD BEHAVIOR EVAL BOARD PGOOD MOMENTARILY REGISTERS HIGH AFTER DEVICE IS ENABLED VIA SW1 5
PGOOD BEHAVIOR EVAL BOARD PGOOD MOMENTARILY REGISTERS HIGH FOR 26.4uS AFTER DEVICE IS ENABLE 6
PGOOD BEHAVIOR EVAL BOARD PGOOD REGISTERS HIGH FOR 26.4uS AFTER DEVICE IS ENABLE. FOLLOWED BY BEING HELD LOW FOR 1.736mS. AFTER 1.736mS PGOOD REMAINS HIGH UNTIL CIRCUIT IS DEPOWERED OR FAULT CONDITION IS PRESENT. 7
