LTC695CN Linear Technology, LTC695CN Datasheet
LTC695CN
Specifications of LTC695CN
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LTC695CN Summary of contents
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... L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. ...
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LTC690/LTC691 LTC694/LTC695 ABSOLUTE MAXIMUM RATINGS (Notes 1 and 2) Terminal Voltage V ..................................................... – 0. .................................................. –0.3V to 6.0V BATT All Other Inputs ....................– 0. Input Current V ................................................................200mA CC V ...............................................................50mA BATT GND ...
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... X LTC1232 8 X LTC1235 16 X PART MARKING PACKAGE DESCRIPTION LTC691CN 16-Lead PDIP LTC691IN 16-Lead PDIP LTC695CN 16-Lead PDIP LTC695IN 16-Lead PDIP LTC691CSW 16-Lead Wide Plastic SO LTC691ISW 16-Lead Wide Plastic SO LTC695CSW 16-Lead Wide Plastic SO LTC695ISW 16-Lead Wide Plastic SO LTC690CN8 8-Lead PDIP LTC690IN8 ...
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LTC690/LTC691 LTC694/LTC695 ELECTRICAL CHARACTERISTICS range, otherwise specifications are at T 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 Mode Battery ...
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ELECTRICAL CHARACTERISTICS 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 Input Current PFO Output Voltage ...
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LTC690/LTC691 LTC694/LTC695 BLOCK DIAGRAM V BATT PFI OSC IN OSC SEL WDI PIN FUNCTIONS Supply Input. The V pin should be bypassed CC CC with a 0.1μF capacitor Voltage Output for ...
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PIN FUNCTIONS 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 is forced low. RESET: Logic Output for ...
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LTC690/LTC691 LTC694/LTC695 TYPICAL PERFORMANCE CHARACTERISTICS OUT OUT 5. 2.8V BATT ° 4.95 4.90 SLOPE = 5Ω 4.85 4.80 4. LOAD CURRENT ...
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APPLICATIONS INFORMATION 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 CC the reset voltage threshold, the RESET output is ...
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LTC690/LTC691 LTC694/LTC695 APPLICATIONS INFORMATION 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 the extra current. OUT ANY PNP ...
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APPLICATIONS INFORMATION If battery connections are made through long wires, a 10Ω to 100Ω series resistor and a 0.1μF capacitor are recommended to prevent any overshoot beyond V to the lead inductance (Figure 4). 10Ω 0.1μF 4.3M Figure 4. 10Ω/0.1μF ...
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LTC690/LTC691 LTC694/LTC695 APPLICATIONS INFORMATION OUT 0.1μF LTC691 10μF LTC695 CE OUT 20ns PROPAGATION DELAY V BATT CE IN FROM DECODER RESET 3V RESET GND TO μP Figure 6. A Typical Nonvolatile CMOS RAM Application 5V ...
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APPLICATIONS INFORMATION 850V HYSTERESIS R3 R3 ≈ 5.88 R1 Choose R3 = 300k and R1 = 51k. Also select R4 = 10k which is much smaller than R3. ⎛ (5V – 1.3V)51 7.5V ...
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LTC690/LTC691 LTC694/LTC695 APPLICATIONS INFORMATION 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 next transition on the WDI ...
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APPLICATIONS INFORMATION Table 2. LTC691 and LTC695 Reset Active Time and Watchdog Timeout Selections OSC SEL OSC IN Low External Clock Input Low External Capacitor* Floating or High Low Floating or High Floating or High *The nominal internal frequency is ...
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LTC690/LTC691 LTC694/LTC695 PACKAGE DESCRIPTION SW Package 16-Lead Plastic Small Outline (Wide .300 Inch) 0.291 – 0.299** (7.391 – 7.595) 0.010 – 0.029 45° (0.254 – 0.737) 0° – 8° TYP 0.009 – 0.013 NOTE 1 (0.229 – 0.330) 0.016 – ...
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... E 4/10 Remove LTC690MJ8 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTC690/LTC691 LTC694/LTC695 PAGE NUMBER ...
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... DELAY CE IN CS⎯A LOW⎯ LINE GND 0.1μF CS⎯ B 0.1μF CS⎯ C OPTIONAL CONNECTION FOR ADDITIONAL RAMs Timing Specifications FAIL LT 0410 REV E • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1992 V CC 62512 RAM 62128 RAM B CS⎯ 1 CS2 V CC 62128 RAM C CS⎯ ...