X5168_06 Datasheet, PDF (6/20 Pages) Intersil Corporation – CPU Supervisor with 16Kbit SPI EEPROM

X5168, X5169
New V_CC Applied =
Old V_CC Applied + Error
V_TRIP Programming
Execute
Reset V_TRIP
Sequence
Set V_CC = V_CC Applied =
Desired V_TRIP
Execute
Set V_TRIP
Sequence
Apply 5V to V_CC
Decrement V_CC
(V_CC = V_CC - 10mV)
New V_CC Applied =
Old V_CC Applied - Error
Execute
Reset V_TRIP
Sequence
NO
RESET pin
goes active?
YES
Error ≥ Emax
Measured V_TRIP -
Desired V_TRIP
Error > Emax
Emax = Maximum Desired Error
Error = 0
DONE
FIGURE 3. V_TRIP PROGRAMMING SEQUENCE FLOW CHART
4.7K
V_TRIP
Adj.
Program
NC
+
1
8
2 _X5168/ 7
3 X5169 6
4
5
10K
10K
FIGURE 4. SAMPLE V_TRIP RESET CIRCUIT
6
V_P
NC ^4.7K
RESET
NC
Reset V_TRIP
Test V_TRIP
Set V_TRIP
FN8130.2
June 15, 2006