isl21440 Intersil Corporation, isl21440 Datasheet
isl21440
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isl21440 Summary of contents
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... TTL/CMOS compatible outputs that sink and source current. Low Bias currents permit high value divider resistors for typical circuit current drains of <2.5µA. The low supply current makes the ISL21440 ideal for battery powered devices in battery level or low voltage monitors circuits. The ISL21440 is a pin-compatible, performance upgrade of both the LTC1440, LTC1540, MAX921 and MAX931 ...
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... Block Diagram Pin Configuration ISL21440 (8 LD MSOP TDFN) TOP VIEW GND IN+ IN ISL21440 V+ IN+ + IN- - HYST ISL21440 REF V- GND Pin Descriptions PIN 1 OUT REF 5 HYST OUT SYMBOL DESCRIPTION GND Ground pin. Sets the Comparator output low level ...
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... SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL21440. For more information on MSL please see techbrief TB363. ...
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... Typical Performance Curves . . . . . . . . . . . . . . . 7 Functional Description . . . . . . . . . . . . . . . . . . 11 Device Power . . . . . . . . . . . . . . . . . . . . . . . . 11 Comparator Section . . . . . . . . . . . . . . . . . . . . 11 Voltage Reference Section . . . . . . . . . . . . . . . 11 Applications Information . . . . . . . . . . . . . . . . 11 Handling and Board Mounting . . . . . . . . . . . . . 11 Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Board Assembly Considerations . . . . . . . . . . . . 12 Special Applications Considerations . . . . . . . . . 12 Typical Applications . . . . . . . . . . . . . . . . . . . . 12 Low Battery Detector . . . . . . . . . . . . . . . . . . . 12 Window Comparator . . . . . . . . . . . . . . . . . . . 12 Revision History . . . . . . . . . . . . . . . . . . . . . . . 13 Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 M8.118 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 L8.3x3G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4 ISL21440 FN6532.0 December 7, 2009 ...
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... JC 8. Post-reflow drift for the ISL21440 device voltage reference output will range from 100mV to 1.0mV based on experimental results with devices on FR4 double sided boards. The design engineer must take this into account when considering the reference voltage after assembly ...
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... V Hysteresis Input Voltage HYST t Propagation Delay - High to PHL Low Transition t Propagation Delay - Low to PLH High Transition V Output High Voltage OH V Output Low Voltage OL 6 ISL21440 TEST CONDITIONS C = 100pF Overdrive = 10mV L Overdrive = 100mV C = 100pF Overdrive = 10mV L Overdrive = 100mV I = -10mA 3mA O No Load 0≤ ...
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... FIGURE TEMPERATURE DD 1.190 1.188 1.186 1.184 1.182 1.180 1.178 1.176 1.174 1.172 -40 - TEMPERATURE (°C) FIGURE TEMPERATURE REF 7 ISL21440 TEST CONDITIONS No Load 0 ≤I ≤2mA SOURCE 0 ≤I ≤10µA SINK 1 1.0 0.8 0 0.4 0 100 120 1.190 1.188 1 ...
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... V (V) DD FIGURE 7. DROPOUT - V REF (mA) LOAD FIGURE 9. COMPARATOR OUTPUT HIGH VOLTAGE vs LOAD 8 ISL21440 (Continued) 1.188 1.187 1.186 1.185 1.184 1.183 1.182 2.0 2.5 3.0 3.0 2.5 LOAD 2.0 1.5 1.0 0.5 2.50 2.75 3.00 OUTPUT FIGURE 8. COMPARATOR OUTPUT LOW VOLTAGE 11V ...
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... IN+ - IN- (mV) FIGURE 13. HYSTERESIS - 37.5mV (V+ = 5V) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 -60-55-50-45-40-35-30-25-20-15- IN+ - IN- (mV) FIGURE 15. HYSTERESIS - 0mV (V+ = 3V) 9 ISL21440 (Continued -60-55-50-45-40-35-30-25-20-15- FIGURE 12. HYSTERESIS - 25mV ( ...
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... IN+ - IN- (mV) FIGURE 19. HYSTERESIS - 50mV (V+=3V) 270 245 220 195 170 3V 145 120 INPUT VOLTAGE (mV) FIGURE 21. OUTPUT RESPONSE TIME vs INPUT OVERDRIVE (t ) PLH 10 ISL21440 (Continued) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 FIGURE 18. HYSTERESIS - 37.5mV ( FIGURE 20. OUTPUT RESPONSE TIME vs INPUT 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2 ...
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... FIGURE 23. POWER-UP/DOWN OUTPUT RESPONSE (V+ = 3V, IN+ = V+, IN Functional Description Device Power The ISL21440 device has a single positive supply pin, V+, and two other supply pins, V- and GND. Normally for single supply applications the V- pin is tied to system ground as well as the GND pin. The separate ground pin allows the comparator to be powered by split supplies from ± ...
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... Typical Applications Low Battery Detector Figure 24 shows a typical implementation for the ISL21440, a low battery detector. The values for R and R provide 20mV of hysteresis and 0.5µA I HYST The input trip point for V is the same as the detect reference voltage, 1 ...
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... Applications, Related Documentation and Related Parts, please see the respective device information page on intersil.com: To report errors or suggestions for this datasheet, please go to FITs are available from our website at 13 ISL21440 for a complete list of Intersil product families. ISL21440 www.intersil.com/askourstaff http://rel.intersil.com/reports/search.php CHANGE FN6532.0 December 7, 2009 ...
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... B - 10. Datums -A - and to be determined at Datum plane . - H - 11. Controlling dimension: MILLIMETER. Converted inch dimen- sions are for reference only. 14 ISL21440 M8.118 (JEDEC MO-187AA) 8 LEAD MINI SMALL OUTLINE PLASTIC PACKAGE SYMBOL θ ...
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... Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see 15 ISL21440 A 0.075 0.50 BSC 8X 0 ...