Texas Instruments TPUL2G122/-Q1 & TPUL2G122A/-Q1 Dual Multivibrators
Texas Instruments TPUL2G122/-Q1 and TPUL2G122A/-Q1 Dual RC-Timed Retriggerable Monostable Multivibrators offer two independent RC-configurable channels for generating timed output pulses. Designed for 1.5V to 5.5V operation, these devices allow pulse duration to be set using external resistance and capacitance values, with an approximate output pulse width of two × R × C.
The TI TPUL2G122x-Q1 devices include rising-edge and falling-edge trigger inputs, along with an asynchronous clear input that can stop an active output pulse. Schmitt-trigger architecture on all inputs helps support slow input transition rates and improve noise immunity.
The TPUL2G122/-Q1 and TPUL2G122A/-Q1 are designed for applications such as demodulating a digital Amplitude Shift Keying (ASK) signal, resetting a system for a fixed period of time, generating a positive fixed-width digital pulse, detecting rising or falling edges in a digital signal, and debouncing a switch.
The TPUL2G122-Q1 and TPUL2G122A-Q1 are AEC-Q100 qualified, making the Q1 versions suitable for automotive applications.
Features
- AEC-Q100 qualified for automotive applications:
- Device temperature grade 1: -40°C to +125°C
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
- Available in a wettable flank QFN package
- RC configurable from 1µs to 860ms (VCC = 3.3V)
- For longer pulse widths, Tl recommends TPUL2T323/TPUL2T323-Q1
- 10% maximum pulse width variation
- Wide operating range from 1.5V to 5.5V
- Inputs accept voltages up to 5.5V
- Schmitt-trigger architecture on all inputs
Applications
- Demodulate a digital Amplitude Shift Keying (ASK) signal
- Reset a system for a fixed period of time
- Generate a positive fixed-width digital pulse
- Detect a digital signal rising edge
- Detect a digital signal falling edge
- Debounce a switch
Datasheets
Associated Multivibrators
Texas Instruments TPUL2T323/TPUL2T323-Q1 Monostable Multivibrators
Devices contain two extended-pulse-width RC-configurable retriggerable monostable multivibrators.
Block Diagram
