TC1278-10ENBTR Microchip Technology, TC1278-10ENBTR Datasheet
TC1278-10ENBTR
Specifications of TC1278-10ENBTR
Related parts for TC1278-10ENBTR
TC1278-10ENBTR Summary of contents
Page 1
... The reset output is driven active within 5 µ falling through the reset voltage threshold. RESET is maintained active for a minimum of 250 ms after V rises above the reset threshold. The TC1278 has an active-high RESET output, while the TC1279 has an active-low RESET output, with both devices having an open-drain output stage ...
Page 2
... SOT-23 (derate 4mW/°C above +70°C) ................................................................230 mW Operating Temperature Range.............-40°C to +85°C Storage Temperature Range ..............-65°C to +150°C DC CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, T Parameters Sym Supply Voltage V CC Low Level @ RESET (TC1278 RESET (TC1279) Output Current @ 0.4 Volts I OL Operating Current: TC1278 I CC1 ...
Page 3
... Slew Rate (4.00V-4.75V Detect to RESET t CC RPU1 (TC1279) V Detect to RESET t CC RPU2 (TC1278) © 2007 Microchip Technology Inc. TC1278/TC1279 = -40°C to +85°C. Typical values are Min Typ Max Units 250 350 450 ms — µs Figure 3-2 — µs Figure 3-4 300 — ...
Page 4
... TC1279 is open-drain. 2.2 RESET (TC1278) RESET output remains high while V CC reset voltage threshold, and for 350 ms (250 ms min.) after V rises above reset threshold. The output stage CC of the TC1278 is open-drain. DS21384D-page 4 Table 2-1. Function 2 below the Supply voltage (1.2V to 5.5V). ...
Page 5
... APPLICATIONS INFORMATION 3.1 Operation – Power Monitor The TC1278/TC1279 provide the function of detecting out-of-tolerance power supply conditions and warning a processor-based system of impending power failure. When V is detected as out-of-tolerance, the RESET CC signal is asserted. On power-up, RESET is kept active for approximately 350 ms after the power supply has reached the selected tolerance ...
Page 6
... TC1278/TC1279 3.2 V Transient Rejection CC The TC1278/TC1279 provides accurate V ing and reset timing during power-up, power-down, and brownout/sag conditions. Furthermore, it rejects negative-going transients (glitches) on the power supply line. Figure 3-5 shows the maximum transient duration vs. maximum negative excursion (overdrive) for glitch rejection. Any combination of duration and overdrive that lays under the curve will not generate a reset signal ...
Page 7
... PACKAGING INFORMATION 4.1 Package Marking Information 3-Pin SOT- & = part number code + temperature range 1 2 and voltage Part Number TC1278-5ENB TC1278-10ENB TC1278-15ENB TC1279-5ENB TC1279-10ENB TC1279-15ENB represents year and 2-month code 3 represents production lot ID code 4 © 2007 Microchip Technology Inc. TC1278/TC1279 Code DS21384D-page 7 ...
Page 8
... TC1278/TC1279 3-Lead Plastic Small Outline Transistor (TT or NB) [SOT-23] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging Number of Pins Lead Pitch Outside Lead Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width ...
Page 9
... E = -40°C to +85°C Package NBTR = Plastic Small Outline Transistor, (SOT23), 3-lead (Tape and Reel) © 2007 Microchip Technology Inc. TC1278/TC1279 Examples TC1278-5ENBTR: 4.625 Reset Package b) TC1278-10ENBTR: 4.375 Reset c) TC1278-15ENBTR: 4.125 Reset a) TC1279-5ENBTR: 4.625 Reset b) TC1279-10ENBTR: 4.375 Reset c) TC1279-15ENBTR: 4.125 Reset . DS21384D-page 9 ...
Page 10
... TC1278/TC1279 NOTES: DS21384D-page 10 © 2007 Microchip Technology Inc. ...
Page 11
... Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
Page 12
... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2007 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...