ltc690cs8-trpbf Linear Technology Corporation, ltc690cs8-trpbf Datasheet
ltc690cs8-trpbf
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ltc690cs8-trpbf Summary of contents
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... LTC690 family provides an internal comparator with a user-defined threshold. An internal watchdog timer is also available, which forces the reset pins to active states when the watchdog input is not toggled prior to a preset time-out period. , LTC and LT are registered trademarks of Linear Technology Corporation. V POWER ...
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... ORDER PART TOP VIEW NUMBER 16 RESET 15 RESET LTC691CSW 14 WDO LTC691ISW 12 CE OUT LTC695CSW 11 WDI LTC695ISW 10 PFO 9 PFI SW PACKAGE LTC690CS8 TOP VIEW LTC690IS8 8 V BATT LTC694CS8 7 RESET LTC694IS8 6 WDI S8 PART 5 PFO MARKING S8 PACKAGE 690 690I CONDITIONAL RAM WRITE PUSH-BUTTON BATTERY PROTECT RESET ...
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ELECTRICAL C HARA TERISTICS C range, otherwise specifications are PARAMETER Battery Back-Up Switching Operating Voltage Range V Output Voltage OUT V in Battery Back-Up Mode OUT Supply Current (Exclude I ) OUT Supply Current in Battery Back-Up ...
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LTC690/LTC691 LTC694/LTC695 ELECTRICAL C HARA TERISTICS C range, otherwise specifications are at T PARAMETER RESET, RESET, WDO, LOW LINE Output Short-Circuit Current (Note 4) WDI Input Threshold WDI Input Current Power-Fail Detector PFI Input Threshold PFI Input Threshold PSRR PFI ...
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W BLOCK I D AGRA V BATT PFI OSC IN OSC SEL WDI CTIO Supply Input. The V pin should be bypassed CC CC with a 0.1 ...
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LTC690/LTC691 LTC694/LTC695 CTIO S PFO: Power Failure Output from C3. PFO remains high when PFI is above 1.3V and goes low when PFI is below 1.3V. When V is lower than V CC BATT PFO ...
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W U TYPICAL PERFOR OUT OUT 5. 2.8V BATT 4.95 4.90 SLOPE = 5 4.85 4.80 4. LOAD CURRENT ...
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LTC690/LTC691 LTC694/LTC695 PPLICATI S I FOR ATIO Microprocessor Reset The LTC690 family uses a bandgap voltage reference and a precision voltage comparator C1 to monitor the 5V supply input on V (see Block Diagram). When V ...
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PPLICATI S I FOR ATIO of external PNP transistor (Figure 2). If higher currents are needed with the LTC690 and LTC694, a high current Schottky diode can be connected from the V V pin to supply ...
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LTC690/LTC691 LTC694/LTC695 PPLICATI S I FOR ATIO If battery connections are made through long wires 100 series resistor and a 0.1 F capacitor are recom- mended to prevent any overshoot beyond V lead ...
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PPLICATI FOR ATIO OUT + 0.1 F LTC691 10 F LTC695 CE OUT 20ns PROPAGATION DELAY V BATT CE IN FROM DECODER RESET 3V GND RESET TO P Figure 6. ...
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LTC690/LTC691 LTC694/LTC695 PPLICATI FOR ATIO of LT1086-5 (4.75V + 1.5V) and V HYSTERESIS 850V HYSTERESIS R3 R3 5.88 R1 Choose R3 = 300k and R1 = 51k. Also select R4 = ...
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PPLICATI S I FOR ATIO The LTC691 and LTC695 provide an additional output (Watchdog Output, WDO) which goes low if the watchdog timer is allowed to time out and remains low until set high by the ...
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LTC690/LTC691 LTC694/LTC695 PPLICATI FOR ATIO Table 2. LTC691 and LTC695 Reset Active Time and Watchdog Time-Out Selections OSC SEL OSC IN Low External Clock Input Low External Capacitor* Floating or High Low Floating or ...
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... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of circuits as described herein will not infringe on existing patent rights. ...
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... NOTE 1 (10.007 – 10.643 S16 (WIDE) 0396 Timing Specifications FAIL sn690 690fcs LT/TP 0399 2K REV C • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1992 V CC 62512 RAM 62128 RAM B CS1 CS2 V CC 62128 RAM C CS1 CS2 690 TA04 0.394 – ...