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LTC2912CDDB-1 Datasheet(PDF) 1 Page - Linear Technology |
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LTC2912CDDB-1 Datasheet(HTML) 1 Page - Linear Technology |
1 / 12 page LTC2912 1 2912fa TYPICAL APPLICATION FEATURES APPLICATIONS DESCRIPTION Single UV/OV Voltage Monitor The LTC ®2912 voltage monitor is designed to detect power supply undervoltage and overvoltage events. The VL and VH monitor inputs include filtering to reject brief glitches, thereby ensuring reliable reset operation without false or noisy triggering. An adjustable timer defines the duration of the overvoltage and undervoltage reset outputs which func- tion independently. While the LTC2912 operates directly from 2.3V to 6V supplies, an internal VCC shunt regulator coupled with low supply current demand allows operation from higher voltages such as 12V, 24V or 48V. Three output configurations are available: the LTC2912- 1 has a latch control for the OV output; the LTC2912-2 has an OV and UV output disable feature for margining applications; the LTC2912-3 is identical to the LTC2912-1 but with a noninverting, OV output. The LTC2912 provides a precise, versatile, space-conscious micropower solution for voltage monitoring. ■ Monitors Single Voltage ■ Adjustable UV and OV Trip Values ■ Guaranteed Threshold Accuracy: ±1.5% ■ Power Supply Glitch Immunity ■ Adjustable Reset Timeout with Timeout Disable ■ 29μA Quiescent Current ■ Open-Drain OV and UV Outputs ■ Guaranteed OV and UV for VCC ≥ 1V ■ Available in 8-Lead ThinSOT TM and (3mm × 2mm) DFN Packages ■ Desktop and Notebook Computers ■ Network Servers ■ Core, I/O Voltage Monitors Single OV/UV Supply Monitor, 3.3V ±10% Tolerance Reset Time-Out Period vs Capacitance , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. 1k 27.4k VH VL GND TMR SYSTEM POWER SUPPLY OV UV 2912 TA01a LATCH 22nF TIMEOUT = 200ms 4.53k VCC LTC2912-1 0.1μF 3.3V TMR PIN CAPACITANCE, CTMR (nF) 10 100 1000 10000 0.1 10 100 1000 2912 G08 1 1 |
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