IMP1233D-10/T View Datasheet(PDF) - A1 PROs co., Ltd.
Part Name
Description
MFG CO.
IMP1233D-10/T
A1 PROs co., Ltd.
'IMP1233D-10/T' PDF : 36 Pages View PDF
Application Information
Operation – Power Monitor
The IMP1817 detects out-of-tolerance power supply conditions. It
resets a processor during power-up, power-down and issues a
reset to the system processor when the monitored power supply
voltage is below the reset threshold. When an out-of-tolerance VCC
voltage is detected, the RESET signal is asserted. On power-up,
RESET is kept active (HIGH) for approximately 150ms after the
power supply voltage has reached the selected tolerance. This
allows the power supply and microprocessor to stabilize before
RESET is released.
I M P 1817
IMP1817
RESET
Microprocessor
RESET
VCCTP (MIN)
tR
VCCTP (MAX)
VCCTP
VIN
tRPU
1815_07.eps
Figure 1. RESET Valid to 0V VCC
RESET
VOL
1817_07.eps
Figure 2. Timing Diagram: Power-Up
VCC
VCCTP (MAX)
VCCTP
tF
VCCTP (MIN)
tRPD
RESET
VOH
RESET Slews with VCC
1817_08.eps
Figure 3. Timing Diagram: Power-Down
4
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© 1999 IMP, Inc.
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