MAX6465XR46+T

19-2533; Rev 2; 12/05 Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits The MAX6461–MAX6466 family of ultra-low-power voltage detectors and µP reset supervisory circuits monitors battery, power-supply, and system voltages. Each circuit includes a precision bandgap reference, a comparator, internally trimmed resistor networks that set specified trip thresholds, and an internal 5% threshold hysteresis circuit (see the Functional Diagram). Output is asserted when VCC falls below the internal VTH- and remains asserted until VCC rises above VTH+ (VTH+ = VTH- × 1.05). These devices provide excellent circuit reliability and low cost by eliminating external components and adjustments when monitoring nominal system voltages from +1.6V to +5.5V. The MAX6461/MAX6462/MAX6463 are voltage detectors with a propagation delay of 17µs. The MAX6464/MAX6465/MAX6466 are µP supervisory circuits with a minimum reset timeout period of 150ms. All devices are available with thresholds from +1.6V to +5.5V in 100mV increments. The family is available with three output stage options: push-pull with active-low output, push-pull with activehigh output, and open drain with active-low output. These devices are available in SC70 and SOT23 packages specified over the -40°C to +125°C temperature range. Applications Precision Battery Monitoring Features ♦ Ultra-Low 1.0µA Supply Current ♦ Preset Thresholds from +1.6V to +5.5V in 100mV Increments ♦ Internal 5% Threshold Hysteresis ♦ ±2.5% Threshold Accuracy Over Temperature ♦ Internal Timeout Period Option (150ms min) ♦ Immune to Short Voltage Transients ♦ No External Components ♦ Available in Three Output Options: Push-Pull (Active Low/Active High) and Open Drain (Active Low) ♦ Fully Specified from -40°C to +125°C ♦ Small SC70 and SOT23 Packages Ordering Information PART TEMP RANGE PIN-PACKAGE MAX6461XR_ _-T -40°C to +125°C 3 SC70-3 MAX6461UR_ _-T -40°C to +125°C 3 SOT23-3 MAX6461UK_ _-T -40°C to +125°C 5 SOT23-5 MAX6462XR_ _-T -40°C to +125°C 3 SC70-3 MAX6462UR_ _-T -40°C to +125°C 3 SOT23-3 MAX6462UK_ _-T -40°C to +125°C 5 SOT23-5 The MAX6461–MAX6466 are available in factory-set thresholds from 1.6V to 5.5V in approximately 100mV increments. Choose the desired voltage threshold suffix from Table 1 and insert it in the blank spaces in the part number. There are 30 standard versions with a required order increment of 2500 pieces. Sample stock generally is held on the standard versions only (Table 2). Nonstandard versions require a 10k-piece order increment. Contact factory for availability. All devices available in tape-andreel only. Load Switching/Power Sequencing Power-Supply Monitoring in Digital/Analog Systems Noise-Immune µP Reset Circuits Portable/Battery-Powered Equipment Cellular Phones/Cordless Phones Devices are available in both leaded and lead-free packaging. Specify lead-free by replacing “-T” with “+T” when ordering. PDAs Portable Medical Devices Ordering Information continued at end of data sheet. Selector Guide appears at end of data sheet. Pin Configurations TOP VIEW GND 1 N.C. MAX6461– MAX6466 3 1 VCC GND 2 5 VCC (OUT)/OUT 1 MAX6461– MAX6466 MAX6461– MAX6466 (OUT)/OUT 2 3 VCC GND 2 SC70-3 ( ) ARE FOR THE MAX6462/MAX6465 ONLY GND 3 4 (OUT)/OUT SOT23-3 SOT23-5 ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX6461–MAX6466 General Description MAX6461–MAX6466 Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND unless otherwise noted.) VCC, Open-Drain OUT..............................................-0.3V to +7V Push-Pull OUT/OUT....................................-0.3V to (VCC + 0.3V) Input/Output Current (all pins) ............................................20mA Output Short Circuit (VCC or GND) Continuous Power Dissipation (TA = +70°C) 3-Pin SC70 (derate 2.9mW/°C above +70°C) ...........228.6mW 3-Pin SOT23 (derate 4.0mW/°C above +70°C)............320mW 5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW Operating Temperature Range .........................-40°C to +125°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VCC = +1.2V to +6V, TA = -40°C to +125°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note1) PARAMETER Operating Voltage Range VCC Supply Current SYMBOL VCC ICC CONDITIONS TA = 0°C to +125°C TA = -40°C to 0°C MIN TYP 1 6 1.2 6.0 VCC = 3.6V, TA = -40°C to +125°C, no load, output not asserted 1 2 VCC = 5.0V, TA = -40°C to +85°C, no load, output not asserted 1.3 2.5 VCC = 5.0V, TA = +85°C to +125°C, no load, output not asserted (VTH+) × 0.985 VCC rising, TA = -40°C to +125°C (VTH+) × 0.975 VCC falling, TA = +25°C (VTH-) × 0.985 VCC falling, TA = -40°C to +125°C (VTH-) × 0.975 VTH- Voltage Threshold Hysteresis VHYST VHYST = [(VTH+) - (VTH-)] / (VTH-)] × 100% 3 VCC falling at 10mV/µs from (VTH-) + 100mV to (V TH-) - 100mV Propagation Delay tP VCC rising at 10mV/µs from (VTH+) - 100mV to (VTH+) + 100mV 2 VTH+ µA (VTH+) × 1.015 (VTH+) × 1.025 VTH- V (VTH-) × 1.015 (VTH-) × 1.025 4.5 6 % µs MAX6461/ MAX6462/ MAX6463 only 100 225 tRP V 17 Startup Time (MAX6461/MAX6462/MAX6463) Output Timeout Period (MAX6464/MAX6465/MAX6466) UNITS 3.5 VCC rising, TA = +25°C VTH+ Voltage Threshold (Note 2) MAX 150 260 _______________________________________________________________________________________ µs 430 ms Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits (VCC = +1.2V to +6V, TA = -40°C to +125°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note1) PARAMETER OUT Output Low (Open Drain or Push-Pull) OUT Output High (Push-Pull) OUT Output Open-Drain Leakage Current OUT Output High (Push-Pull) SYMBOL CONDITIONS VOL MIN 0.3 VCC ≥ 2.5V, ISINK = 4.0mA, OUT asserted 0.3 VOH 0.8 × VCC VCC ≥ 2.5V, ISOURCE = 3.0mA, OUT not asserted 0.8 × VCC VCC ≥ 4.5V, ISOURCE = 8.0mA, OUT not asserted 0.8 × VCC VOL V V 100 VCC ≥ 1.2V, ISOURCE = 200µA, OUT asserted 0.8 × VCC VCC ≥ 1.8V, ISOURCE = 1.5mA, OUT asserted 0.8 × VCC VCC ≥ 2.5V, ISOURCE = 3.0mA, OUT asserted 0.8 × VCC VCC ≥ 4.5V, ISOURCE = 8.0mA, OUT asserted 0.8 × VCC VCC ≥ 2.5V, ISINK = 4.0mA, OUT not asserted OUT Output Low (Push-Pull) UNITS 0.4 VCC ≥ 1.8V, ISOURCE = 1.5mA, OUT not asserted OUT not asserted, V OUT = +6V ILKG MAX VCC ≥ 1.2V, ISINK = 1.0mA, OUT asserted VCC ≥ 4.5V, ISINK = 9.0mA, OUT asserted VOH TYP nA V 0.3 V VCC ≥ 4.5V, ISINK = 9.0mA, OUT not asserted 0.4 Note 1: 100% production testing done at +25°C. Limits over temperature are guaranteed by design. Note 2: See Table 1 for VTH- and VTH+ values. Typical Operating Characteristics (VCC = 5V, TA = +25°C, unless otherwise noted.) 1.35 1.30 1.25 100 90 80 70 1.20 35 VCC FALLING AT 200mV/µs FROM ((VTH-) + 100mV) TO ((VTH-) - 100mV) 30 25 20 15 10 5 0 60 1.15 40 MAX6461 toc03 VCC RISING AT 200mV/µs FROM ((VTH+) - 100mV) TO ((VTH+) + 100mV) PROPAGATION DELAY (µs) 110 PROPAGATION DELAY (µs) SUPPLY CURRENT (µA) 1.40 120 MAX6461 toc02 VCC = 5V, NO LOAD MAX6461 toc01 1.45 PROPAGATION DELAY (FALLING) vs. TEMPERATURE PROPAGATION DELAY (RISING) vs. TEMPERATURE SUPPLY CURRENT vs. TEMPERATURE -40 -25 -10 5 20 35 50 65 80 95 110 125 -40 -25 -10 5 20 35 50 65 80 95 110 125 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) _______________________________________________________________________________________ 3 MAX6461–MAX6466 ELECTRICAL CHARACTERISTICS (continued) Typical Operating Characteristics (continued) (VCC = 5V, TA = +25°C, unless otherwise noted.) MAXIMUM VCC TRANSIENT DURATION vs. VTH- THRESHOLD OVERDRIVE PROPAGATION DELAY VCC FALLING MAX6461 toc05b MAX6461 toc04 19 TRANSIENT DURATION (µs) PROPAGATION DELAY VCC RISING MAX6461 toc05a 20 18 17 100mV/div AC-COUPLED OUTPUT ASSERTS ABOVE THIS LINE 16 VCC 100mV/div AC-COUPLED OUT 1V/div VCC 15 14 1V/div 13 ACTIVE-HIGH OUTPUT ACTIVE-HIGH OUTPUT OUT 12 MAX6464_ _22 11 MAX6462_ _16 MAX6462_ _16 10 1 OUTPUT VOLTAGE HIGH vs. SOURCE CURRENT OUTPUT VOLTAGE HIGH vs. SOURCE CURRENT VCC = 3.3V VTH = 2.9V 3.3 4.5 3.1 2.9 2.5 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 SOURCE CURRENT (mA) NORMALIZED THRESHOLD vs. TEMPERATURE NORMALIZED OUTPUT TIMEOUT PERIOD vs. TEMPERATURE 1.01 1.00 0.99 0.98 1.02 0 MAX6466 1 2 3 4 5 6 7 8 9 10 SINK CURRENT (mA) HYSTERESIS vs. TEMPERATURE 6.0 MAX6461 1.01 5.5 % OF VTH- MAX6461 toc08 1.02 200 175 150 125 100 10 SOURCE CURRENT (mA) MAX6461 toc09 1 NORMALIZED RESET TIMEOUT PERIOD 0 225 75 50 25 0 2.7 4.0 VCC = 2.7V VTH = 2.9V 250 OUTPUT VOLTAGE (mV) 5.0 300 275 MAX6461 toc06b MAX6461 toc06a 5.5 OUTPUT VOLTAGE LOW vs. SINK CURRENT 3.5 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 6.0 4 10µs/div 20µs/div MAX6461 toc07 0.1 VTH- THRESHOLD OVERDRIVE ((VTH-) - VCC) (V) MAX6461 toc10 0.01 NORMALIZED THRESHOLD MAX6461–MAX6466 Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits 1.00 0.99 5.0 4.5 0.98 4.0 -40 -25 -10 5 20 35 50 65 80 95 110 125 -40 -25 -10 5 20 35 50 65 80 95 110 125 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) _______________________________________________________________________________________ Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits PIN NAME MAX6461–MAX6466 SOT23-3 1 SC70-3 FUNCTION SOT23-5 2 OUT Detector Output for the MAX6461/MAX6462/MAX6463: Push-pull (active-low or active-high) and open-drain (active-low) options. OUT is asserted low when the monitored input (VCC) drops below the internal VTH- threshold and remains low until the monitored input exceeds the internal VTH+ threshold. OUT is asserted high when the monitored input (VCC) drops below the internal VTH- threshold and remains high until the monitored input exceeds the internal VTH+ threshold. The open-drain output OUT requires an external pullup resistor. Output for the MAX6464/MAX6465/MAX6466: Push-pull (active-low or active-high) and opendrain (active-low) options. OUT OUT is asserted low when the monitored input (VCC) drops below the internal VTH- threshold and remains low for at least 150ms after the monitored input exceeds the internal VTH+ threshold. OUT is asserted high when the monitored input (VCC) drops below the internal VTH- threshold and remains high for at least 150ms after the monitored input exceeds the internal VTH+ threshold. The opendrain output OUT requires an external pullup resistor. 4 2 1 2, 3 GND Ground. In the SOT23-5 package, both pins must be grounded. 3 3 5 VCC Supply Voltage and Monitored Voltage Input — — 1 N.C. No Connection Functional Diagram VCC MAX6461– MAX6466 R1 R2 RESET TIMEOUT OUTPUT STAGE OUT Detailed Description The MAX6461/MAX6462/MAX6463 voltage detectors and the MAX6464/MAX6465/MAX6466 µP reset supervisory circuits monitor battery, power-supply, and system voltages from +1.6V to +5.5V. These devices consume only 1µA of supply current with a 3.6V supply voltage. Whenever VCC falls below the internal VTH- threshold, the output is asserted and remains asserted until VCC rises above VTH+ (VTH+ = VTH- × 1.05). All devices have ±2.5% threshold accuracy over temperature and offer protection to short voltage transients. These devices are ideal for low-cost and space-critical applications because they do not require external components for proper operation. R3 1.23V _______________________________________________________________________________________ 5 MAX6461–MAX6466 Pin Description MAX6461–MAX6466 Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits Hysteresis IN DC/DC CONVERTER OUT VCC 3.6V Li+ VCC µP MAX6463 MAX6466 OUT SUSPEND Figure 1. Interfacing to Different Logic Voltage Components Applications Information Interfacing to Different Logic Voltage Components The MAX6463 and MAX6466’s active-low, open-drain output versions can be used to interface with a different logic voltage than VCC, as shown in Figure 1. This output structure sinks current when OUT is asserted. Connect a pullup resistor from OUT to any supply from 0 to 6V. Select a resistor value large enough to allow a valid logic low (see the Electrical Characteristics) and small enough to register a logic high while supplying all input current and leakage paths connected to the OUT pin. 6 The MAX6461–MAX6466 feature internal hysteresis that creates two trip points: one for rising supply voltage and one for falling supply voltage. The hysteresis prevents the output from oscillating (chattering) when VCC is near the voltage threshold. Transients Immunity These devices are relatively immune to short-duration and falling V CC transients (glitches). The Typical Operating Characteristics show the Maximum Transient Duration vs. Threshold Overdrive graph, for which OUT is not asserted. The graph shows the maximum pulse width that a falling VCC transient typically might have before the devices are asserted. As the amplitude of the transient increases, the maximum allowable pulse width decreases. Ensuring Valid Output Down to 0V When VCC falls below 1V, the MAX6461/MAX6464 output sinking capability is reduced. Therefore, highimpedance CMOS logic inputs connected to OUT can drift to undetermined voltages. This presents no problem in most applications, because most circuitry is inoperative when V CC is below 1V. In applications where OUT must be valid down to ground, add a pulldown resistor to ground so any stray leakage currents flow to ground, holding OUT low. Select a resistor large enough not to load OUT and small enough to pull OUT to ground. For most applications, 100kΩ does not load OUT and pulls OUT to ground. _______________________________________________________________________________________ Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits MAX6461–MAX6466 Table 1a. MAX6461–MAX6466 Lower Trip Threshold (VTH-) Voltage Options VOLTAGE THRESHOLD, VTHSUFFIX TA = +25°C TA = -40°C to +125°C VTH- (min) VTH- (typ) VTH- (max) VTH- (min) VTH- (max) 16 17 1.576 1.675 1.600 1.700 1.624 1.726 1.560 1.658 1.640 1.743 18 1.773 1.800 1.827 1.755 1.845 19 1.872 1.900 1.929 1.853 1.948 20 21 1.970 2.069 2.000 2.100 2.030 2.132 1.950 2.048 2.050 2.153 22 2.167 2.200 2.233 2.145 2.255 23 2.266 2.300 2.335 2.243 2.358 24 25 2.364 2.463 2.400 2.500 2.436 2.538 2.340 2.438 2.460 2.563 26 2.561 2.600 2.639 2.535 2.665 27 2.660 2.700 2.741 2.633 2.768 28 29 2.758 2.857 2.800 2.900 2.842 2.944 2.730 2.828 2.870 2.973 30 2.955 3.000 3.045 2.925 3.075 31 3.054 3.100 3.147 3.023 3.178 32 33 3.152 3.251 3.200 3.300 3.248 3.350 3.120 3.218 3.280 3.383 34 3.349 3.400 3.451 3.315 3.485 35 3.448 3.500 3.553 3.413 3.588 36 37 3.546 3.645 3.600 3.700 3.654 3.756 3.510 3.608 3.690 3.793 38 3.743 3.800 3.857 3.705 3.895 39 3.842 3.900 3.959 3.803 3.998 40 41 3.940 4.039 4.000 4.100 4.060 4.162 3.900 3.998 4.100 4.203 42 4.137 4.200 4.263 4.095 4.305 43 4.236 4.300 4.365 4.193 4.408 44 45 4.334 4.433 4.400 4.500 4.466 4.568 4.290 4.388 4.510 4.613 46 4.531 4.600 4.669 4.485 4.715 47 4.630 4.700 4.771 4.583 4.818 48 49 4.728 4.827 4.800 4.900 4.872 4.974 4.680 4.778 4.920 5.023 50 4.925 5.000 5.075 4.875 5.125 51 5.024 5.100 5.177 4.973 5.228 52 53 5.122 5.221 5.200 5.300 5.278 5.380 5.070 5.168 5.330 5.433 54 5.319 5.400 5.481 5.265 5.535 55 5.418 5.500 5.583 5.363 5.638 _______________________________________________________________________________________ 7 MAX6461–MAX6466 Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits Table 1b. MAX6461–MAX6466 Upper Trip Threshold (VTH+) Voltage Options VOLTAGE THRESHOLD, VTH+ SUFFIX 8 VTH+ (min) TA = +25°C VTH+ (typ) VTH+ (max) TA = -40°C to +125°C VTH+ (min) VTH+ (max) 16 1.647 1.672 1.697 1.630 1.714 17 1.750 1.777 1.803 1.732 1.821 18 19 1.853 1.956 1.881 1.986 1.909 2.015 1.834 1.936 1.928 2.035 20 2.059 2.090 2.121 2.038 2.142 21 2.162 2.195 2.227 2.140 2.249 22 23 2.265 2.367 2.299 2.404 2.333 2.440 2.242 2.343 2.356 2.464 24 2.470 2.508 2.546 2.445 2.571 25 2.573 2.613 2.652 2.547 2.678 26 27 2.676 2.779 2.717 2.822 2.758 2.864 2.649 2.751 2.785 2.892 28 2.882 2.926 2.970 2.853 2.999 29 2.985 3.031 3.076 2.955 3.106 30 31 3.088 3.191 3.135 3.240 3.182 3.288 3.057 3.159 3.213 3.320 32 3.294 3.344 3.394 3.260 3.428 33 3.397 3.449 3.500 3.362 3.535 34 35 3.500 3.603 3.553 3.658 3.606 3.712 3.464 3.566 3.642 3.749 36 3.706 3.762 3.818 3.668 3.856 37 3.809 3.867 3.924 3.770 3.963 38 39 3.911 4.014 3.971 4.076 4.031 4.137 3.872 3.974 4.070 4.177 40 4.117 4.180 4.243 4.076 4.285 41 4.220 4.285 4.349 4.177 4.392 42 43 4.323 4.426 4.389 4.494 4.455 4.561 4.279 4.381 4.499 4.606 44 4.529 4.598 4.667 4.483 4.713 45 4.632 4.703 4.773 4.585 4.820 46 47 4.735 4.838 4.807 4.912 4.879 4.985 4.687 4.789 4.927 5.034 48 4.941 5.016 5.091 4.891 5.141 49 5.044 5.121 5.197 4.992 5.249 50 51 5.147 5.250 5.225 5.330 5.303 5.409 5.094 5.196 5.356 5.463 52 5.352 5.434 5.516 5.298 5.570 53 5.455 5.539 5.622 5.400 5.677 54 55 5.558 5.661 5.643 5.748 5.728 5.834 5.502 5.604 5.784 5.891 _______________________________________________________________________________________ Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits MAX6461–MAX6466 Table 2. Standard Versions Table TOP MARK (SC70) PART TOP MARK (SC70) PART AMB MAX6464XR16-T AMO MAX6461XR22-T AMC MAX6464XR22-T AMP MAX6461XR26-T AMD MAX6464XR26-T AMQ MAX6461XR29-T AKV MAX6464XR29-T AMR MAX6461XR46-T AME MAX6464XR46-T AMS MAX6462XR16-T AKW MAX6465XR16-T AMT MAX6462XR22-T AMF MAX6465XR22-T AMU MAX6462XR26-T AMG MAX6465XR26-T AMV MAX6462XR29-T AMH MAX6465XR29-T AMW MAX6462XR46-T AMI MAX6465XR46-T AKZ MAX6463XR16-T AMJ MAX6466XR16-T AMX MAX6463XR22-T AMK MAX6466XR22-T AMY MAX6463XR26-T AML MAX6466XR26-T AMZ MAX6463XR29-T AMM MAX6466XR29-T ALA MAX6463XR46-T AMN MAX6466XR46-T ALB MAX6461XR16-T Selector Guide PUSH-PULL OUT PUSH-PULL OUT OPEN-DRAIN OUT TYPICAL PROPAGATION DELAY (µs) MINIMUM TIMEOUT PERIOD (ms) MAX6461 ✔ — — 14 — MAX6462 — ✔ — 14 — MAX6463 — — ✔ 14 — MAX6464 ✔ — — — 150 MAX6465 — ✔ — — 150 MAX6466 — — ✔ — 150 PART _______________________________________________________________________________________ 9 MAX6461–MAX6466 Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits Ordering Information (continued) PART TEMP RANGE PIN-PACKAGE MAX6463XR_ _-T -40°C to +125°C 3 SC70-3 MAX6463UR_ _-T -40°C to +125°C 3 SOT23-3 MAX6463UK_ _-T -40°C to +125°C 5 SOT23-5 MAX6464XR_ _-T -40°C to +125°C 3 SC70-3 MAX6464UR_ _-T -40°C to +125°C 3 SOT23-3 MAX6464UK_ _-T -40°C to +125°C 5 SOT23-5 MAX6465XR_ _-T -40°C to +125°C 3 SC70-3 MAX6465UR_ _-T -40°C to +125°C 3 SOT23-3 MAX6465UK_ _-T -40°C to +125°C 5 SOT23-5 MAX6466XR_ _-T -40°C to +125°C 3 SC70-3 MAX6466UR_ _-T -40°C to +125°C 3 SOT23-3 MAX6466UK_ _-T -40°C to +125°C 5 SOT23-5 Chip Information TRANSISTOR COUNT: 581 PROCESS: BiCMOS Package Information For the latest package outline information, go to www.maxim-ic.com/packages.) The MAX6461–MAX6466 are available in factory-set thresholds from 1.6V to 5.5V in approximately 100mV increments. Choose the desired voltage threshold suffix from Table 1 and insert it in the blank spaces in the part number. There are 30 standard versions with a required order increment of 2500 pieces. Sample stock generally is held on the standard versions only (Table 2). Nonstandard versions require a 10k-piece order increment. Contact factory for availability. All devices available in tape-andreel only. Devices are available in both leaded and lead-free packaging. Specify lead-free by replacing “-T” with “+T” when ordering. Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc.