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TC51 データシート(PDF) 1 Page - Microchip Technology |
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TC51 データシート(HTML) 1 Page - Microchip Technology |
1 / 14 page 2002 Microchip Technology Inc. DS21429B-page 1 M TC51 Features • Precise Detection Thresholds: ±2.0% • Small Package: 3-Pin SOT-23A • Low Supply Current: Typ. 1 µA • Wide Detection Range: 1.6V to 6.0V • Wide Operating Voltage Range: 0.7V to 10V • Built-in Delay Circuit: 50msec to 200 msec • Open-Drain Output Applications • Battery Voltage Monitoring • Microprocessor Reset • System Brown-out Protection Device Selection Table Other output voltages are available. Please contact Microchip Technology Inc. for details. Package Type General Description The TC51 is a very low power, open drain output, CMOS voltage detector with built-in delay. It is particularly well-suited for battery powered applications because of its extremely low 1 µA operating current and small surface-mount packaging. Each part is laser- trimmed to the desired threshold voltage, which can be specified from 1.6V to 6.0V. The standard built-in output delay is 50msec-200msec. The device includes a comparator, low-current high- precision reference, laser-programmed voltage divider, hysteresis circuit and output driver with digital delay timer. In operation, the TC51’s output (VOUT) remains in the logic HIGH state as long as VIN is greater than the specified threshold voltage (VDET -). When VIN falls below VDET -, the output is immediately driven to a logic LOW. VOUT remains LOW until VIN rises above VDET - by an amount VHYST, whereupon it returns to a logic HIGH after expiration of the built-in delay time. Functional Block Diagram Part Number Package Temp. Range TC51-xxxxxxxxxx 3-Pin SOT-23A -40°C to +85°C VIN VOUT VSS TC51 1 2 3 3-Pin SOT-23A NOTE: 3-Pin SOT-23A is equivalent to the EIAJ SC-59. VIN VSS VOUT VREF Delay Circuit 1 µA Voltage Detector with Output Delay |
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