TC1279-10ENBTR Microchip Technology, TC1279-10ENBTR Datasheet - Page 5

• Manufacturer Part Number: TC1279-10ENBTR
• Description: IC RESET MONITOR 4.375V SOT23B-3
• Manufacturer: Microchip Technology
• Type: Simple Reset/Power-On Resetr

Specifications of TC1279-10ENBTR

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 250 ms Minimum
• Voltage - Threshold: 4.375V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: TC127910ENBTR

3.0
3.1
The TC1278/TC1279 provide the function of detecting
out-of-tolerance power supply conditions and warning
a processor-based system of impending power failure.
When V
signal is asserted. On power-up, RESET is kept active
for approximately 350 ms after the power supply has
reached the selected tolerance. This allows the power
supply and microprocessor to stabilize before RESET
is released.
FIGURE 3-1:
Diagram.
FIGURE 3-2:
Timing Diagram.
© 2007 Microchip Technology Inc.
V
RESET
V
RESET
CC
CC
CC
APPLICATIONS INFORMATION
Operation – Power Monitor
is detected as out-of-tolerance, the RESET
4.75V
V
CCTP
4.00V
TC1279 Power Up Timing
TC1279 Power-Down
4.00V
V
CCTP
V
t
4.75V
RPU1
OL
t
F
t
R
t
RPD1
V
OH
FIGURE 3-3:
Diagram.
FIGURE 3-4:
Timing Diagram.
V
V
RESET
RESET
CC
CC
4.74V
V
CCTP
TC1278/TC1279
V
CCTP(MIN)
V
OH
4.00V
TC1278 Power-Up Timing
TC1278 Power-Down
t
RESET SLEWS WITH V
F
t
RPD2
V
t
RPU2
CCTP
V
CCTP(MAX)
DS21384D-page 5
t
R
V
OL
CC