Click here for production status of specific part numbers. MAX6381MAX6390 SC70/DFN, Single/Dual Low-Voltage, Low-Power P Reset Circuits General Description Features The MAX6381MAX6390 microprocessor (P) supervi- Factory-Set Reset Threshold Voltages Ranging from sory circuits monitor power-supply voltages from +1.8V +1.58V to +4.63V in Approximately 100mV Increments to +5.0V while consuming only 3A of supply current at 2.5% Reset Threshold Accuracy Over +1.8V. Whenever V falls below the factory-set reset CC Temperature (-40C to +125C) thresholds, the reset output asserts and remains asserted Seven Reset Timeout Periods Available: 1ms, 20ms, for a minimum reset timeout period after V rises above CC 140ms, 280ms, 560ms, 1120ms, 1200ms (min) the reset threshold. Reset thresholds are available from 3 Reset Output Options +1.58V to +4.63V, in approximately 100mV increments. Active-Low Push-Pull Seven minimum reset timeout delays ranging from 1ms Active-High Push-Pull to 1200ms are available. Active-Low Open-Drain The MAX6381/MAX6384/MAX6387 have a push-pull active- Reset Output State Guaranteed Valid Down to V = 1V CC low reset output. The MAX6382/MAX6385/MAX6388 have Manual Reset Input (MAX6384/MAX6385/MAX6386) a push-pull active-high reset output, and the MAX6383/ Auxiliary RESET IN (MAX6387/MAX6388/MAX6389) MAX6386/MAX6389/MAX6390 have an open-drain active- V Reset Timeout (1120ms or 1200ms)/Manual CC low reset output. The MAX6384/MAX6385/MAX6386 also Reset Timeout (140ms or 150ms) (MAX6390) feature a debounced manual reset input (with internal Negative-Going V Transient Immunity pullup resistor). The MAX6387/MAX6388/MAX6389 have CC an auxiliary input for monitoring a second voltage. The Low Power Consumption of 6A at +3.6V and 3A at +1.8V MAX6390 offers a manual reset input with a longer V CC Pin Compatible with MAX809/MAX810/MAX803/ reset timeout period (1120ms or 1200ms) and a shorter MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/ manual reset timeout (140ms or 150ms). MAX6348, and MAX6711/MAX6712/MAX6713 The MAX6381/MAX6382/MAX6383 are available in 3-pin Tiny 3-Pin/4-Pin SC70 and 6-Pin DFN Packages SC70 and 6-pin DFN packages and the MAX6384 AEC-Q100 Qualified, Refer to Ordering Information MAX6390 are available in 4-pin SC70 and 6-pin DFN for the Specific /V Trim Version packages. Ordering Information Applications PIN- Computers Critical P and C PART TEMP RANGE PACKAGE Power Monitoring Controllers Portable/Battery- Intelligent Instruments MAX6381LT D +T -40C to +125C 6 DFN Powered Equipment MAX6381XR D +T -40C to +125C 3 SC70 Dual Voltage Systems MAX6381XR D /V+T -40C to +125C 3 SC70 MAX6381XR26D3/V+T -40C to +125C 3 SC70 Pin Configurations MAX6381XR46D2/V+T -40C to +125C 3 SC70 Note: Insert reset threshold suffix (see Reset Threshold table) TOP VIEW GND N.C. V CC after XR, XS, or LT. Insert reset timeout delay (see Reset Timeout Delay table) after D to complete the part number. 6 5 4 Sample stock is generally held on standard versions only (see GND 1 Standard Versions table). Standard versions have an order MAX6381 MAX6381 increment requirement of 2500 pieces. Nonstandard versions MAX6382 3 V CC MAX6382 have an order increment requirement of 10,000 pieces. MAX6383 RESET MAX6383 Contact factory for availability of nonstandard versions. 2 (RESET) +Denotes a lead(Pb)-free/RoHS-compliant package. 1 2 3 SC70 /V denotes an automotive qualified part. RESET N.C. N.C Ordering Information continued at end of data sheet. ( ) IS FOR MAX6382 (RESET) DFN Typical Operating Circuit appears at end of data sheet. Pin Configurations continued at end of data sheet. Selector Guide appears at end of data sheet. 19-1839 Rev 6 3/18MAX6381MAX6390 SC70/DFN, Single/Dual Low-Voltage, Low-Power P Reset Circuits Absolute Maximum Ratings V to GND .........................................................-0.3V to +6.0V Continuous Power Dissipation (T = +70C) CC A RESET Open-Drain Output ..................................-0.3V to +6.0V 3-Pin SC70 (derate 2.9mW/C above +70C) .............235mW RESET, RESET (push-pull output) .......... -0.3V to (V + 0.3V) 4-Pin SC70 (derate 3.1mW/C above +70C) .............245mW CC MR, RESET IN ......................................... -0.3V to (V + 0.3V) 6-Pin DFN (derate 2.1mW/C above +70C) .........167.7mW CC Input Current (V ) ............................................................20mA Operating Temperature Range ......................... -40C to +125C CC Output Current (all pins) .....................................................20mA Storage Temperature Range ............................ -65C to +150C Lead Temperature (soldering, 10s) .................................+300C 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 = full range, T = -40C to +125C, unless otherwise specified. Typical values are at T = +25C.) (Note 1) CC A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Voltage Range V 1.0 5.5 V CC V = 5.5V, no load 7 13 CC V = 3.6V, no load 6 11 CC V Supply Current I A CC CC V = 2.5V, no load 4 7 CC V = 1.8V, no load 3 6 CC V - V + TH TH T = +25C V A TH V Reset Threshold 1.5% 1.5% CC V V TH (See Reset Thresholds table) V - V + TH TH T = -40C to +125C V A TH 2.5% 2.5% Reset Threshold Tempco V /C 60 ppm/C TH V falling at 10mV/s from V + 100mV CC TH V to Reset Delay 35 s CC to V - 100mV TH D1 1 2 D2 20 40 D3 140 280 Reset Timeout Period MAX6381MAX6389 t D5 280 560 ms RP (See Reset Timeout table) D6 560 1120 D4 1120 2240 D7 1200 2400 D4 140 280 MR timeout period D7 150 300 Reset Timeout Period t ms RP MAX6390 D4 1120 2240 V timeout period CC D7 1200 2400 0.3 x V IL V CC V < 4V TH 0.7 x MR Input Voltage V V IH V CC V 0.8 IL V > 4V TH V 2.4 IH Maxim Integrated 2 www.maximintegrated.com