TC1270A

Features:

• Precision voltage monitor
- 2.63V, 2.93V, 3.08V, 4.38V and 4.63V trip points (Typical)
• Manual Reset input
• Reset Time-out Delay:
- Standard: 280 ms (Typical)
- Optional: 2.19 ms, and 35 ms (Typical)
• Power Consumption 15 A max
• No glitches on outputs during power-up
• Active Low Output Options:
- Push-Pull Output and Open-Drain Output
• Active High Output Option:
- Push-Pull Output
• Replacement for (Specification compatible with):
- TC1270, TC1271
- TCM811, TCM812
• Fully static design
• Low voltage operation (1.0V)
• ESD protection:
- 4 kV Human Body Model (HBM)
- 400V Machine Model (MM)
• Extended (E) Temperature range: -40to +125
• Package Options:
- 4-lead SOT-143
-5-lead SOT-23
- Pb-free Device




Specifications

Supply Voltage (V_DD to V_SS) ..........................+7.0V
Input Current, V_DD.........................................10 mA
Output Current, RESET, RESET.......................10 mA
Voltage on all inputs and outputs
w.r.t. V_SS ........................... -0.6V to (V_DD + 1.0V)
Storage Temperature Range ..........-65 to +150
Operating Temperature Range........-40 to +125
Maximum Junction Temperature, T_S................ 150
ESD protection on all pins
Human Body Model .................................. 4 kV
Machine Model ........................................ 400V

Notice: Stresses above those listed under "Absolute
Maximum Ratings" may cause permanent damage to
the device. This is a stress ratings only and functional
operation of the device at those or any other conditions
above those indicated in the operational listing of this
specifications is not implied. Exposure to Absolute
Maximum Rating conditions for extended periods may
affect device reliability.

Parameter NameValueManual ResetYesWatchdog TimerNoTypical Reset Pulse Width (ms)280Reset TypeActive Low Typical Supply Current (uA)7Vcc Range Min (V)1.0Vcc Range Max (V)5.5OutputPush-PullTemp Range Min. (°C)-40Temp Range Max. (°C)+125Nominal Reset Voltage (V)4.54, 4.30, 3.03, 2.88, 2.58

Parameter Name	Value
Manual Reset	Yes
Watchdog Timer	No
Typical Reset Pulse Width (ms)	280
Reset Type	Active Low
Typical Supply Current (uA)	7
Vcc Range Min (V)	1.0
Vcc Range Max (V)	5.5
Output	Push-Pull
Temp Range Min. (°C)	-40
Temp Range Max. (°C)	+125
Nominal Reset Voltage (V)	4.54, 4.30, 3.03, 2.88, 2.58

Description

The TC1270A, TC1271A and TC1270AN are cost-effective system supervisor circuits designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. A manual reset input is provided to override the reset monitor, and is suitable for use as a push-button reset. The TC1270A has a push-pull, active-low RESET output, the TC1271A has a push-pull, active-high RESET output and TC1270AN has an open-drain, active-low RESET output.. All devices are available in industry standard pin-out and industry standard 4-Pin SOT-143 and 5-pin SOT23 packages. The TC1270A/70AN/71A are optimized to reject fast transient glitches on the VCC line and are suitable for all battery powered applications.