TM1816 Datasheet

Supervisory Circuits


TM1816 devices are low power reset devices used to monitor power supplies for microcontrollers. They perform a single function: asserting a reset signal whenever VCCsupply voltage drops below a preset value and keeping it asserted until VCC has risen above the preset threshold for a minimum period of time (trec). They provide excellent circuit reliability without additional external components when used with +3.0 V / +3.3 V (STM1815–STM1818), and +5 V (STM1810–STM1813) power supply systems TM1816 Features • Precision monitoring of 3 V , 3.3 V, and 5 V supply voltages• Four output configurations:– Push-Pull, Active-High (STM1812,1817)– Push-Pull, Active-Low (STM1810,1815)– Open Drain, Active-Low (STM1811,1816)– Open Drain, Active-Low with PushButton Detect (STM1813,1818)• Reset pulse width - 100 ms (min)• Guaranteed assertion down to VCC = 1.0 V (0 °C to 105 °C)• Factory-trimmed reset thresholds of 2.55 V, 2.88 V, 3.06 V, 4.37 V, and 4.62 V (typ)• Power supply transient immunity• Push-button/manual reset detect (STM1813/1818)• Available in the SOT23-3 package• Fully compatible with DS181x and MXD181x products.


[{"Name":" Number of Voltages Monitored:","Value":"3"},{"Name":"Monitored Voltage:","Value":"3 V, 3.3 V, 5 V"},{"Name":"Undervoltage Threshold:","Value":"2.47 V"},{"Name":"Overvoltage Threshold:","Value":"2.64 V"},{"Name":"Power-Up Reset Delay (Typ):","Value":"2 us"},{"Name":"Supply Voltage - Max:","Value":"5.5 V"},{"Name":"Maximum Operating Temperature:","Value":"+ 105 C"},{"Name":"Minimum Operating Temperature:","Value":"- 40 C"},{"Name":"Maximum Power Dissipation:","Value":"320 mW"},{"Name":"","Value":""}]

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