MIC2778-1BM5 MICREL [Micrel Semiconductor], MIC2778-1BM5 Datasheet
MIC2778-1BM5
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MIC2778-1BM5 Summary of contents
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... SOT-23 package Applications • PDAs • Pagers • Cordless phones • Consumer electronics • Embedded controllers • Personal electronics Ordering Information Part Number Marking Accuracy MIC2778-2BM5 UFB MIC2778-1BM5 UFA MIC5207-3.0BM5 IN MIC2778 100k 604k VDD RST EN 1% LTH 56k HTH ...
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... MIC2778 Pin Configuration Pin Description Pin Number Pin Name 1 HTH 2 GND 3 LTH 4 RST 5 VDD MIC2778 LTH GND HTH RST VDD SOT-23-5 (M5) Pin Function High-Voltage Theshold (Input): Analog input to a comparator. When the level on this pin initially rises above V REF RST remains low for a minimum of 140ms ...
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... RST asserted 100 A, V SINK V HTH V LTH RST V RSTH V RSTL Propagation delays not shown for clarity. Note A. The MIC2778 ignores very brief transients. See “Applications Information” for details. 3 (Note 2) ) .................................. +1.5V to +5. ............. –0.3V to +6.0V RST LTH HTH ) ............. – + Min Typ ...
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... Functional Description The MIC2778 monitors the voltage of a battery and detects when it is discharged below a programmed level. Upon being replaced, or being recharged above a second higher pro- grammed trip point, the output remains low for a minimum of 140ms and then sends a reset signal to a microprocessor or other downstream component ...
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... Some microprocessors have reset signal pins that are bidi- rectional, rather than input only. The Motorola 68HC11 family is one example. Because the MIC2778’s output is open drain, it can be connected directly to the processor’s reset pin using only the pull-up resistor normally required. See Figure 4. ...
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... MIC2778 Package Information 1.90 (0.075) REF 0.95 (0.037) REF 3.02 (0.119) 2.80 (0.110) 0.50 (0.020) 0.35 (0.014) MIC2778 1.75 (0.069) 3.00 (0.118) 1.50 (0.059) 2.60 (0.102) DIMENSIONS: MM (INCH) 1.30 (0.051) 0.90 (0.035 0.15 (0.006) 0.60 (0.024) 0.00 (0.000) 0.10 (0.004) SOT-23-5 (M5) 6 Micrel 0.20 (0.008) 0.09 (0.004) October 1999 ...
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... MIC2778 October 1999 7 Micrel MIC2778 ...
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... This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. MIC2778 + 1 (408) 944-0970 http://www ...