TC1275-20ENBTR Microchip Technology, TC1275-20ENBTR Datasheet - Page 4

• Manufacturer Part Number: TC1275-20ENBTR
• Description: IC RESET MONITOR 2.55V SOT23B
• Manufacturer: Microchip Technology
• Type: Simple Reset/Power-On Resetr

Specifications of TC1275-20ENBTR

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 100 ms Minimum
• Voltage - Threshold: 2.55V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
• Monitored Voltage: 3.3 V
• Output Type: Active Low, Push-Pull
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.2 V
• Supply Current (typ): 20 uA
• Maximum Power Dissipation: 230 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: Yes
• Undervoltage Threshold: 2.47 V
• Overvoltage Threshold: 2.64 V
• Power-up Reset Delay (typ): 300 ms
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: TC127520ENBTR

TC1275/TC1276/TC1277
3.0
3.1
of detecting out-of-tolerance power supply conditions
and warning a processor-based system of impending
power failure.
tolerance, the RESET signal is asserted. On power-up,
RESET is kept active for approximately 200 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:
(TC1275/TC1276).
FIGURE 3-2:
Down (TC1275/TC1276).
DS21383C-page 4
V
RESET
V
RESET
CC
CC
The TC1275/TC1276/TC1277 provide the function
APPLICATIONS INFORMATION
Operation – Power Monitor
V
CCTP
(MAX)
V
CCTP
When V
V
CCTP
(MIN)
Timing Diagram – Power Up
Timing Diagram – Power
CC
V
CCTP
V
CCTP
is detected as out-of-
V
V
t
CCTP
RPU
OL
(MIN)
t
1
F
(MAX)
t
R
t
RPD1
V
OH
FIGURE 3-3:
Power Up (TC1277).
FIGURE 3-4:
Power Down (TC1277).
V
V
RESET
RESET
CC
CC
V
CCTP
(MAX)
V
CCTP
V
CCTP
V
OH
V
(MIN)
CCTP
Timing Diagram –
Timing Diagram –
© 2007 Microchip Technology Inc.
(MIN)
t
F
t
RPD2
RESET SLEWS WITH V
V
CCTP
t
RPU2
V
CCTP
(MAX)
t
R
V
CC
OL