Datasheet

CHAPTER 19 ELECTRICAL SPECIFICATIONS
User’s Manual U18172EJ3V0UD
305
POC Circuit Characteristics (TA = −40 to +85°C)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Detection voltage
V
POC 2.0 2.1 2.2 V
Power supply rise time tPTH VDD: 0 V → 2.1 V 1.5 μ s
Response delay time 1
Note 1
tPTHD When power supply rises, after reaching
detection voltage (MAX.)
3.0 ms
Response delay time 2
Note 2
tPD
When power supply falls
1.0 ms
Minimum pulse width tPW 0.2 ms
Notes 1. Time required from voltage detection to internal reset release.
2. Time required from voltage detection to internal reset signal generation.
POC Circuit Timing
Supply voltage
(V
DD )
Detection voltage (MIN.)
Detection voltage (TYP.)
Detection voltage (MAX.)
t PTH
t PTHD
t PW
t PD
Time