Click here for production status of specific part numbers. MAX16052/MAX16053 High-Voltage, Adjustable Sequencing/Supervisory Circuits General Description Benefits and Features The MAX16052/MAX16053 are a family of small, low-power, Less External Circuitry Results in Smaller Solution Size high-voltage monitoring circuits with sequencing capability. Open-Drain (28V Tolerant) Output Allows These miniature devices offer very wide flexibility with an Interfacing to 12V Intermediate Bus Voltage Operates from V of 2.25V to 28V adjustable voltage threshold and an external capacitor- CC adjustable time delay. These devices are ideal for use in Small 6-Pin SOT23 Package power-supply sequencing, reset sequencing, and power Ideal for Use in Power-Supply Sequencing, Reset switching applications. Multiple devices can be cascaded Sequencing, and Power-Switching Applications for complex sequencing applications. Active-High Logic-Enable Input 1.8% Accurate Adjustable Threshold Over Temperature A high-impedance input (IN) with a 0.5V threshold allows an external resistive-divider to set the monitored Fully Specified from -40C to +125C for Reliability in threshold. The output (OUT) asserts high when the input Extreme Temperatures voltage rises above the 0.5V threshold and the enable Low Supply Current (18A typ) Reduces Power input (EN) is asserted high. When the voltage at IN falls Consumption below 0.495V or when the enable input is de-asserted Applications (EN = low), the output deasserts (OUT = low). The devices provide a capacitor programmable delay time Medical Equipment from when the voltage at IN rises above 0.5V to when the Intelligent Instruments output is asserted. Portable Equipment Computers/Servers The MAX16052 offers an active-high open-drain out- Critical P Monitoring put while the MAX16053 offers an active-high push- Set-Top Boxes pull output. Both devices operate from a 2.25V to 28V Telecom supply voltage and feature an active-high enable input. The MAX16052/MAX16053 are available in a tiny 6-pin SOT23 package and are fully specified over the automo- tive temperature range (-40C to +125C). Typical Operating Circuit 12V DC-DC CONVERTER EN V EN V CC CC IN 0.9V MAX16052 MAX16052 OUT IN OUT EN OUT IN DC-DC CONVERTER CDELAY CDELAY GND GND 19-4144 Rev 7 5/18MAX16052/MAX16053 High-Voltage, Adjustable Sequencing/Supervisory Circuits Absolute Maximum Ratings (All voltages referenced to GND.) Continuous Power Dissipation (T = +70C) A V ........................................................................-0.3V to +30V 6-Pin SOT23 (derate 8.7mW/C above +70C)........695.7mW CC OUT (push-pull, MAX16053).....................-0.3V to (V + 0.3V) Operating Temperature Range .........................-40C to +125C CC OUT (open-drain, MAX16052)................................-0.3V to +30V Junction Temperature.......................................................+150C EN, IN ........................................................-0.3V to (V + 0.3V) Storage Temperature Range .............................-65C to +150C CC CDELAY....................................................................-0.3V to +6V Lead Temperature (soldering, 10s) .................................+300C Input/Output Current (all pins)..........................................20mA Soldering Temperature (reflow) .......................................+260C 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 = 2.25V to 28V, V = V , T = T = -40C to +125C, unless otherwise specified. Typical values are at V = 3.3V and CC EN CC A J CC T = +25C.) (Note 1) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SUPPLY Operating Voltage Range V 2.25 28 V CC Undervoltage Lockout UVLO V falling (Note 2) 1.8 2 V CC V = 3.3V 18 37 CC MAX16052, no load V = 12V 23 45 CC V = 28V 38 61 CC V Supply Current I A CC CC V = 3.3V 22 47 CC MAX16053, no load V = 12V 29 57 CC V = 28V 44 71 CC IN Threshold Voltage V V rising, 2.25V V 28V 0.491 0.500 0.509 V TH IN CC Hysteresis V V falling 5 mV HYST IN Input Current I V = 0 or 28V -110 +25 +110 nA IN IN C DELAY C Charge Current I V = 0V 200 250 300 nA DELAY CD CDELAY C Threshold V V rising 0.95 1.00 1.05 V DELAY TCD CDELAY V 2.25V, I = 200A 15 60 CC SINK C Pulldown Resistance R DELAY CDELAY V 3.3V, I = 1mA 15 60 CC SINK EN EN Low Voltage V 0.5 V IL EN High Voltage V 1.4 V IH EN Leakage Current I V = 0 or 28V -110 +20 +110 nA LEAK EN OUT V 1.2V, I = 90A 0.2 CC SINK OUT Low Voltage V V 2.25V, I = 0.5mA 0.3 V OL CC SINK (Open-Drain or Push-Pull) V > 4.5V, I = 1mA 0.4 CC SINK V 2.25V, I = 500A 0.8 x V OUT High Voltage CC SOURCE CC V V OH (Push-Pull, MAX16053) V 4.5V, I = 800A 0.9 x V CC SOURCE CC OUT Leakage Current I Output not asserted low, V = 28V 150 nA LKG OUT (Open-Drain, MAX16052) Maxim Integrated 2 www.maximintegrated.com