Click here for production status of specific part numbers. MAX16041/MAX16042/ Dual-/Triple-/Quad-Voltage, Capacitor- MAX16043 Adjustable, Sequencing/Supervisory Circuits General Description Features The MAX16041/MAX16042/MAX16043 are dual-/triple-/ 2.2V to 28V Operating Voltage Range quad-voltage monitors and sequencers that are offered Fixed Thresholds for 3.3V, 2.5V, 1.8V, 1.5V, and in a small thin QFN package. These devices offer 1.2V Systems enormous design flexibility as they allow fixed and 1.5% Accurate Adjustable Threshold Monitors adjustable thresholds to be selected through logic inputs Voltages Down to 0.5V and provide sequence timing through small external capacitors. These versatile devices are ideal for use in a 2.7% Accurate Fixed Thresholds Over Temperature wide variety of multivoltage applications. Fixed (140ms min)/Capacitor-Adjustable Delay Timing As the voltage at each monitored input exceeds its respective threshold, its corresponding output goes high Independent Open-Drain Outputs/Push-Pull after a propagation delay or a capacitor-set time delay. RESET Output When a voltage falls below its threshold, its respective Enable Inputs for Each Monitored Voltage output goes low after a propagation delay. Each detec- 9 Logic-Selectable Threshold Options tor circuit also includes its own enable input, allowing the power-good outputs to be shut off independently. Manual Reset and Tolerance Select (5%/10%) Inputs The independent output for each detector has an open- Small, 4mm x 4mm TQFN Package drain configuration capable of supporting voltages up to Fully Specified from -40C to +125C 28V, thereby allowing them to interface to shutdown and enable inputs of various DC-DC regulators. Each detec- Ordering Information tor can operate independently as four separate supervi- sory circuits or can be daisy-chained to provide controlled PIN- PKG PART* TEMP RANGE power-supply sequencing. PACKAGE CODE The MAX16041/MAX16042/MAX16043 also include a MAX16041TE+ -40C to +125C 16 TQFN T1644-4 push-pull reset function that deasserts only after all of the MAX16042TP+ -40C to +125C 20 TQFN T2044-3 independently monitored voltages exceed their threshold. MAX16043TG+ -40C to +125C 24 TQFN T2444-4 The reset timeout is internally fixed or can be adjusted +Denotes lead-free package. externally. These devices are offered in a 4mm x 4mm *For tape and reel, add a T after the +. All tape and reel TQFN package and are fully specified from -40C to orders are available in 2.5k increments. +125C. Pin Configurations Applications Multivoltage Systems TOP VIEW DC-DC Supplies 18 17 16 15 14 13 Servers/Workstations MR 19 12 TH1 Storage Systems CRESET 11 EN4 20 Networking/Telecommunication Equipment 10 EN3 CDLY4 21 MAX16043 Selector Guide CDLY3 22 9 EN2 CDLY2 23 8 EN1 MONITORED INDEPENDENT RESET PART CDLY1 24 7 GND VOLTAGES OUTPUTS OUTPUT + 1 2 3 4 5 6 MAX16041 2 2 (Open-drain) Push-pull MAX16042 3 3 (Open-drain) Push-pull TQFN MAX16043 4 4 (Open-drain) Push-pull (4mm x 4mm) Pin Configurations continued at end of data sheet. 19-0622 Rev 1 12/18 VCC RESET IN1 OUT1 IN2 OUT2 IN3 OUT3 OUT4 IN4 TOL TH0MAX16041/MAX16042/ Dual-/Triple-/Quad-Voltage, Capacitor- MAX16043 Adjustable, Sequencing/Supervisory Circuits Absolute Maximum Ratings (All voltages referenced to GND.) Continuous Power Dissipation (T = +70C) A V ........................................................................-0.3V to +30V 16-Pin TQFN (derate 25mW/C above +70C) .........2000mW CC EN1EN4.................................................. -0.3V to (V + 0.3V) 20-Pin TQFN (derate 25.6mW/C above +70C) ......2051mW CC OUT1OUT4 .........................................................-0.3V to +30V 24-Pin TQFN (derate 27.8mW/C above +70C) ......2222mW RESET...................................................... -0.3V to (V + 0.3V) Operating Temperature Range ......................... -40C to +125C CC IN1IN4 .................................................... -0.3V to (V + 0.3V) Storage Temperature Range ............................ -65C to +150C CC MR, TOL, TH1, TH0 ................................. -0.3V to (V + 0.3V) Junction Temperature ......................................................+150C CC CDLY1CDLY4 ........................................................-0.3V to +6V Lead Temperature (soldering, 10s) .................................+300C CRESET ................................................... -0.3V to (V + 0.3V) CC Input/Output Current (all pins) ..........................................20mA 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 = 2.2V to 28V, T = -40C to +125C, unless otherwise specified. Typical values are at V = 3.3V and T = +25C.) (Note 1) CC A CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SUPPLY Operating Voltage Range V (Note 2) 2.2 28.0 V CC Undervoltage Lockout UVLO (Note 2) 1.8 1.9 2.0 V Undervoltage-Lockout Hysteresis UVLO V falling 50 mV HYST CC V = 3.3V 40 75 All OUT and RESET at CC V Supply Current I logic-high (IN current V = 12V 47 75 A CC CC CC excluded) V = 28V 52 80 CC INPUTS (IN ) 3.3V threshold, TOL = GND 2.970 3.052 3.135 3.3V threshold, TOL = V 2.805 2.888 2.970 CC 2.5V threshold, TOL = GND 2.250 2.313 2.375 2.5V threshold, TOL = V 2.125 2.187 2.250 CC 1.8V threshold, TOL = GND 1.620 1.665 1.710 IN Thresholds (IN Falling) V V TH 1.8V threshold, TOL = V 1.530 1.575 1.620 CC 1.5V threshold, TOL = GND 1.350 1.387 1.425 1.5V threshold, TOL = V 1.275 1.312 1.350 CC 1.2V threshold, TOL = GND 1.080 1.110 1.140 1.2V threshold, TOL = V 1.020 1.050 1.080 CC TOL = GND 0.492 0.5 0.508 Adjustable Threshold V V TH (IN Falling) TOL = V 0.463 0.472 0.481 CC IN Hysteresis (IN Rising) V 0.5 % HYST IN Input Resistance Fixed threshold 500 918 k IN Input Current I Adjustable threshold only (V = 1V) -100 +100 nA L IN Maxim Integrated 2 www.maximintegrated.com