TCM809/TCM810 3-Pin Microcontroller Reset Monitors Features General Description Precision V Monitor for 2.5V, 3.0V, 3.3V, 5.0V The TCM809 and TCM810 are cost-effective system DD Nominal System Voltage Supplies supervisor circuits designed to monitor V in digital DD systems providing a reset signal to the host processor, 140 msec Minimum RESET Time-Out Period when necessary. No external components are RESET Output to V = 1.0V (TCM809) DD required. Low Supply Current, 9 A (typ.) The RESET output is typically driven active within V Transient Immunity DD 65 sec of V falling through the reset voltage thresh- DD Small 3-Pin SC-70 and SOT-23B Packages old. RESET is maintained active for a minimum of No External Components 140 msec after V rises above the reset threshold. DD Push-Pull RESET Output The TCM810 has an active-high RESET output, while the TCM809 has an active-low RESET output. The Temperature Ranges: output of the TCM809/TCM810 is valid down to - Industrial: SC-70 (E): -40C to +85C V = 1V. Both devices are available in 3-Pin SC-70 DD - Extended: SOT-23, SC-70 (V): -40C to +125C and SOT-23B packages. The TCM809/TCM810 are optimized to reject fast Applications transient glitches on the V line. A low supply current DD Computers of 9 A (typ., V = 3.3V) make these devices suitable DD for battery-powered applications. Embedded Systems Battery-powered Equipment Pin Configurations Critical Microcontroller Power Supply Monitoring Automotive SOT-23B/SC-70 Typical Application Circuit GND 1 V DD 3 V V DD 3 DD V DD PIC Microcontroller TCM809 RESET TCM809 2 TCM810 (RESET) 2 RESET RESET INPUT (Active-Low) Note: 3-Pin SOT-23B is equivalent to GND GND JEDEC TO-236. 1 2001-2012 Microchip Technology Inc. DS21661E-page 1 TCM809/ TCM810TCM809/TCM810 Notice: Stresses above those listed under Maximum 1.0 ELECTRICAL Ratings may cause permanent damage to the device. This is CHARACTERISTICS a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Absolute Maximum Ratings Exposure to maximum rating conditions for extended periods Supply Voltage (V to GND) ........................................................6.0V DD may affect device reliability. RESET, RESET ................................................... -0.3V to (V +0.3V) DD Input Current, V .......................................................................20 mA DD Output Current, RESET, RESET.................................................20 mA dV/dt (V )...........................................................................100V/sec DD Operating Temperature Range ...................................-40C to +125C Power Dissipation (T = 70C): A 3-Pin SOT-23B (derate 4 mW/C above +70C) ....................320 mW 3-Pin SC-70 (derate 2.17 mW/C above +70C)....................174 mW Storage Temperature Range.......................................-65C to +150C Maximum Junction Temperature, T ............................................ 150C J ELECTRICAL CHARACTERISTICS V = Full Range, T = Operating Temperature Range, unless otherwise noted. Typical values are at T = +25C, DD A A V = 5V for L/M/J, 3.3V for T/S, 3.0V for R and 2.5V for Z (Note 1). DD Parameter Sym Min Typ Max Units Test Conditions V Range 1.0 5.5 V T = 0C to +70C DD A 1.2 5.5 T = 40C to +125C A Supply Current I 12 30 A TCM8xxL/M/J: V < 5.5V CC DD 9 25 TCM8xxR/S/T/Z: V < 3.6V DD Reset Threshold (Note 2) V 4.56 4.63 4.70 V TCM8xxL: T = +25C TH A 4.50 4.75 T = 40C to +125C A 4.31 4.38 4.45 V TCM8xxM: T = +25C A 4.25 4.50 V T = 40C to +125C A 3.93 4.00 4.06 V TCM809J: T = +25C A 3.89 4.10 V T = 40C to +125C A 3.04 3.08 3.11 V TCM8xxT: T = +25C A 3.00 3.15 V T = 40C to +125C A 2.89 2.93 2.96 V TCM8xxS: T = +25C A 2.85 3.00 V T = 40C to +125C A 2.59 2.63 2.66 V TCM8xxR: T = +25C A 2.55 2.70 V T = 40C to +125C A 2.28 2.32 2.35 V TCM8xxZ: T = +25C A 2.25 2.38 V T = 40C to +125C A Reset Threshold Tempco 30 ppm/C V to Reset Delay, 65 sec V = V to (V 100 mV) (Note 2) DD DD TH TH Reset Active Time Out 140 320 560 msec Period RESET Output Voltage V 0.3 V TCM809R/S/T/Z: V = V min, I = 1.2 mA OL DD TH SINK Low (TCM809) 0.4 TCM809L/M/J: V = V min, I = 3.2 mA DD TH SINK 0.3 V > 1.0V, I = 50 A DD SINK RESET Output Voltage V 0.8 V V TCM809R/S/T/Z: V > V max, I = 500 A OH DD DD TH SOURCE High (TCM809) V 1.5 TCM809L/M/J: V > V max, I = 800 A DD DD TH SOURCE RESET Output Voltage V 0.3 V TCM810R/S/T/Z:V = V max, I = 1.2 mA OL DD TH SINK Low (TCM810) 0.4 TCM810L/M: V = V max, I = 3.2 mA DD TH SINK RESET Output Voltage V 0.8 V V 1.8 < V < V min, I = 150 A OH DD DD TH SOURCE High (TCM810) Note 1: Production testing done at T = +25C, overtemperature limits ensured by QC screen. A 2: RESET output for TCM809, RESET output for TCM810. DS21661E-page 2 2001-2012 Microchip Technology Inc.