LTC2916 Datasheet | Linear Technology

LTC2915/LTC2916 Voltage Supervisor with 27 Selectable Thresholds Features 9 Selectable Supply Voltages 12V, 5V, 3.3V, 2.5V, 1.8V 1.5V, 1.2V, 1.0V, +ADJ (0.5V) n 3 Selectable Tolerances - 5%, - 10%, - 15% (LTC2915) n Manual Reset Input (LTC2916) n 1.5V to 5.5V Supply Operation n 6.2V Shunt Regulator for High Voltage Operation .. n Guaranteed Operation to 125˚C n Guaranteed Threshold Accuracy: ±1.5% n Low Quiescent Current: 30μA Typical n Power Supply Glitch Immunity n Guaranteed RST for V CC ≥ 0.8V n Low Profile (1mm) 8-Lead TSOT-23 (Thin SOTTM) and (3mm × 2mm) DFN Packages n DESCRIPTION The LTC®2915/LTC2916 are low voltage single-supply monitors with selectable thresholds. The parts operate from 1.5V to 5.5V and consume a quiescent current of only 30μA. Two three-state inputs select one of nine internally programmed thresholds without the need for external resistors. For the LTC2915, an additional three-state input determines the tolerance (- 5%, - 10%, - 15%). The tolerance for the LTC2916 is fixed at - 5%. Threshold accuracy is guaranteed at ±1.5% over the entire operating temperature range. Glitch filtering ensures reliable reset operation without false triggering. The reset timeout may be set to 200ms or adjusted using an external capacitor. A separate manual reset input on the LTC2916 allows a simple push button interface. Operation to 125°C makes the LTC2915 and LTC2916 suitable for automotive applications. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Thin SOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. APPLICATIONS n n n n n Handheld Devices Cell Phone Base Stations Automotive Control Systems Network Servers Optical Networking Systems TYPICAL APPLICATION 1.8V, - 5% Tolerance Supply Monitor 1.8V 0.1μF VCC LTC2916 VM RT MR GND RST SEL1 SEL2 t RST = 200ms 10k VCC μP RESET 29156 TA01 Monitor Selection Table NOMINAL VOLTAGE 12V 5V 3.3V 2.5V 1.8V 1.5V...