Packaging information
| Package | Pins SOT-23-THN (DDF) | 8 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TPS3435
- Factory programmed or user-programmable watchdog
timeout
- ±10% Accurate timer (maximum)
- Factory programmed: 1ms to 100s
- Factory programmed or user-programmable reset
delay
- ±10% Accurate timer (maximum)
- Factory programmed option: 2ms to 10s
- Input voltage range: VDD = 1.04V to 6.0V
- Ultra low supply current: IDD = 250nA (typical)
- Open-drain, push-pull; active-low outputs
- Various programmability options:
- Watchdog enable-disable
- Watchdog startup delay: no delay to 10s
- On the fly timer extension: 1X to 256X
- Latched output option
- MR functionality support
Description for the TPS3435
The TPS3435 is an ultra-low power consumption (250nA typical) device offering a programmable timeout watchdog timer.
The TPS3435 offers a high accuracy timeout watchdog timer with a host of features for a wide variety of applications. The timeout watchdog timer can be factory programmed or user programmed using an external capacitor. The timer value can be changed on-the-fly using a combination of logic pins. The watchdog also offers unique features such as enable-disable, start-up delay.
The WDO delay can be set by factory-programmed default delay settings or programmed by an external capacitor. The device also offers a latched output operation where the output is latched until the watchdog fault is cleared.
The TPS3435 provides a performance upgrade alternative to TPS3431 device family. The TPS3435 is available in a small 6-pin WSON and 8-pin SOT-23 package.