SLVSL08 January 2026 TPUL2G223
PRODUCTION DATA
The TPUL2G223 contains a simple state machine as shown in the State Machine Diagram with only three states: ready, discharge, monitor.
In the ready state, the TPUL2G223 shorts the RC pin to VCC and holds the digital output inactive.
When triggered, the state machine changes to the discharge state. The digital output is immediately set to active and the device internally shorts the RC pin to ground, discharging the external timing capacitor. Triggers while in the Discharge or Monitor state are ignored.
The state machine changes from the discharge state to the monitor state when the RC pin reaches the low reference voltage (Vrefl = 0.25VCC). The RC pin is then set to high impedance, allowing the external timing circuit to naturally charge the timing capacitor back to VCC. When the RC voltage reaches the high reference voltage (Vrefh = 0.69VCC), the state machine returns to the ready state.
| State Name | Inputs | Outputs(1) | |||||
|---|---|---|---|---|---|---|---|
| Trigger | VRC ≤ Vrefl | VRC ≥ Vrefh | CLR | RC | Q | Q | |
| Ready | Discharge | Ready | Ready | Ready | H | L | H |
| Discharge | Discharge | Monitor | Discharge | Ready | L | H | L |
| Monitor | Monitor | Monitor | Ready | Ready | Z | H | L |