Texas Instruments TPUL2T323/-Q1 Monostable Multivibrators
Texas Instruments TPUL2T323/-Q1 Monostable Multivibrators integrate two independent extended-pulse-width, RC-configurable retriggerable monostable multivibrators for 1.5V to 5.5V operation. Pulse timing is configured with external resistor and capacitor values, providing an approximate output pulse width of two ≅ 1000 x R x C.
The TPUL2T323/-Q1 devices include rising-edge and falling-edge trigger inputs, as well as an asynchronous clear input to stop an active output pulse. Schmitt-trigger inputs help accommodate slow signal transitions while enhancing noise immunity in timing and pulse-generation circuits. These devices are offered in a wettable-flank QFN package, support RC timing from 10ms to 880s, and use extended pulse-width functionality to reduce the capacitor value needed for long-duration pulses by a factor of 1000. The devices also provide TTL-compatible operation with a 4.5V to 5.5V supply and single-supply voltage translation for selected up-translation and down-translation needs.
The TI TPUL2T323/-Q1 is 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 digital signal edges, and debouncing a switch.
The TPUL2T323-Q1 is AEC-Q100 qualified for automotive applications.
Applications
- 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 10ms to 880s
- Extended pulse width functionality reduces the capacitor value required for long pulse widths by a factor of 1000
- For pulses less than 10ms, use TPUL2G123Q1
- 1% typical, 10% maximum pulse width variation
- Wide operating range of 1.5V to 5.5V
- Inputs accept voltages up to 5.5V
- TTL-compatible with 4.5V to 5.5V supply
- Schmitt-trigger architecture on all inputs
- Single-supply voltage translator (refer to Reduced Input Threshold Voltage):
- Up translation:
- 1.2V to 1.8V
- 1.5V to 2.5V
- 1.8V to 3.3V
- 3.3V to 5.0V
- Down translation:
- 5.0V, 3.3V, 2.5V to 1.8V
- 5.0V, 3.3V to 2.5V
- 5.0V to 3.3V
- Up translation:
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
Associated Products
Texas Instruments TPUL2G123/-Q1 Dubbla RC-tidsinställda Mono-multivibratorer
Features two independent devices designed for 1.5V to 5.5V operation.
Datasheets
Block Diagram
