MAX834/MAX835 19-1157 Rev 3 3/10 Micropower, Latching Voltage Monitors in SOT23-5 General Description Features The MAX834/MAX835 micropower voltage monitors Prevent Deep Discharge of Batteries contain a 1.204V precision bandgap reference, com- Precision 1.25% Voltage Threshold parator, and latched output in a 5-pin SOT23 package. Using the latched output prevents deep discharge of Latched Output (Once Low, Stays Low Until batteries. The MAX834 has an open-drain, n-channel Cleared) output driver, while the MAX835 has a push-pull output SOT23-5 Package driver. Two external resistors set the trip-threshold voltage. Low Cost The MAX834/MAX835 feature a level-sensitive latch, +2.5V to +11V Wide Operating Voltage Range eliminating the need to add hysteresis to prevent oscil- < 2A Typical Supply Current lations in battery-load-disconnect applications. Open-Drain Output (MAX834)/Push-Pull Output (MAX835) Applications Ordering Information Precision Battery Monitors PART PIN-PACKAGE TOP MARK Load Switching 5 SOT23 AAAX MAX834E U K-T Battery-Powered Systems 5 SOT23 AAAY MAX835E U K-T Note: All devices are specified over the -40C to +85C operating Threshold Detectors temperature range. Devices are available in both leaded and lead-free packaging. Specify lead-free by changing -T with +T when ordering. Typical Operating Circuit Pin Configuration V CC TOP VIEW (MAX834 ONLY) R L CLEAR LATCH CLEAR 1 5 OUT CLEAR OUT OUT MAX834 GND 2 MAX835 MAX834 MAX835 GND V 3 4 IN CC SOT23-5 V V IN CC CC R1 0.1F R2 Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Micropower, Latching Voltage Monitors in SOT23-5 ABSOLUTE MAXIMUM RATINGS V , OUT (MAX834), CLEAR to GND....................-0.3V to +12V Continuous Power Dissipation (T = +70C) CC A 5-Pin SOT23 (derate 7.1mW/C above +70C) .............571mW IN, OUT (MAX835) to GND.........................-0.3V to (V + 0.3V) CC INPUT Current Operating Temperature Range ...........................-40C to +85C Storage Temperature Range .............................-65C to +150C V ................................................................................20mA CC Lead Temperature (soldering, 10s) .................................+300C IN....................................................................................10mA OUT Current.......................................................................-20mA Soldering Temperature (reflow) .......................................+240C V Rate of Rise .............................................................100V/s CC 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 (V = +2.5V to +11V, T = T to T , unless otherwise noted. Typical values are at T = +25C.) A MIN MAX A CC PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Voltage V 2.5 11.0 V C C Range (Note 1) T = +25C 2.4 5 V = 1.6V, OUT = A IN V = 3.6V low, V C C CLEAR T = T to T 10 A MIN MAX V - 0.25V or C C V 0.25V CLEAR V = full operating range 15 C C Supply Current I A C C (Note 2) T = +25C 1.1 4 V = 1.25V, OUT A IN V = 3.6V = high, V C C CLEAR T = T to T 8 V - 0.25V or A MIN MAX CC V 0.25V CLEAR V = full operating range 13 C C T = +25C 1.185 1.204 1.215 A Threshold Voltage V V falling V TH IN T = 0C to +70C 1.169 1.204 1.231 A Threshold Voltage V V = 5V, IN = low to high 6 mV HYST C C Hysteresis IN Operating Voltage V 0V - 1 V IN C C Range (Note 1) IN Leakage Current I V = V 3 12 nA IN IN TH (Note 3) Propagation Delay t V = 5V, 50mV overdrive 80 s PL C C Glitch Immunity V = 5V, 100mV overdrive 35 s C C OUT Rise Time t V = 5V, no load (MAX835 only) 200 ns RT C C OUT Fall Time t V = 5V, no load (MAX834 pullup = 10k) 480 ns FT C C Output Leakage I V > V (MAX834 only) 1 A LOUT IN TH(MAX) Current (Note 4) V - C C Output-Voltage High V V > V , I = 500A (MAX835 only) V OH IN TH(MAX) SOURCE 0.5 Output-Voltage Low V V < V , I = 500A 0.4 V OL IN TH(MIN) SINK CLEAR Input High V 2V CIH Voltage 2 MAX834/MAX835