The TC54 series CMOS voltage detector, with extremely low 1µA operating current and small surface-mount packaging, is especially suitable for battery-powered applications. Each part is laser trimmed to the desired threshold voltage, which can be specified from 2.1V to 6.0V, in 0.1V steps. The device includes a comparator, low-current high-precision reference, laser-trimmed divider, hysteresis circuit and output driver. The TC54 is available with either an open-drain or complementary output stage. In operation, the TC54's output (VOUT) remains in the logic HIGH state as long as VIN is greater than the specified threshold voltage (V–DET). When VIN falls below V–DET, the output is driven to a logic LOW. VOUT remains LOW until VIN rises above V–DET by an amount VHYST, whereupon it resets to a logic HIGH.
The TelCom TC54 is a CMOS voltage detector designed specifically for battery-powered applications due to its extremely low operating current of approximately 1µA. The device includes an internal comparator, high-precision reference, laser-trimmed divider, hysteresis circuit, and output driver.
Available in SOT-23A-3, SOT-89, and TO-92 packages, the TC54 offers a detection threshold range from 2.1V to 6.0V with standard or custom tolerance options. It operates over a wide voltage range of 1.5V to 10V and is available in both open-drain (Nch) and complementary output configurations.
| Operating Voltage Range | 1.5V to 10V |
|---|---|
| Detection Threshold Range | 2.1V to 6.0V |
| Typical Operating Current | 1µA |
| Operating Temperature Range | -40°C to +85°C |
The device is available with either an open-drain or complementary output stage.
They are offered in SOT-23A-3, SOT-89, and TO-92 packages.