MAX16036LLB31+T Maxim Integrated Products, MAX16036LLB31+T Datasheet
MAX16036LLB31+T
Specifications of MAX16036LLB31+T
Related parts for MAX16036LLB31+T
MAX16036LLB31+T Summary of contents
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... MAX16038_ MAX16039_ MAX16040_ Note: Replace “_” with L for push-pull or P for open-drain RESET and PFO outputs. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Low-Power Battery Backup Circuits in Small µDFN Packages o Low 1 ...
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Low-Power Battery Backup Circuits in Small µDFN Packages ABSOLUTE MAXIMUM RATINGS Terminal Voltages (with respect to GND) V BATT, OUT .......................................................-0.3V to +6V CC, RESET (open drain), PFO (open drain) ....................-0.3V to +6V RESET (push-pull), PFO (push-pull), BATTON, RESETIN, WDI ...
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ELECTRICAL CHARACTERISTICS (continued) = 3V, RESET not asserted 2.25V to 5.5V BATT +25°C.) (Note 1) PARAMETER SYMBOL RESET OUTPUT Reset Threshold V V Falling Reset Delay CC Reset Active Timeout Period t RP RESET Output ...
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Low-Power Battery Backup Circuits in Small µDFN Packages ELECTRICAL CHARACTERISTICS (continued) = 3V, RESET not asserted 2.25V to 5.5V BATT +25°C.) (Note 1) PARAMETER SYMBOL WATCHDOG (MAX16034/MAX16038) Watchdog Timeout Period ...
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A SUPPLY CURRENT vs. TEMPERATURE -40 - TEMPERATURE (°C) V -TO-OUT ON-RESISTANCE CC vs. TEMPERATURE ...
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Low-Power Battery Backup Circuits in Small µDFN Packages (T = +25°C, unless otherwise noted.) A BATTERY SUPPLY CURRENT vs. SUPPLY VOLTAGE 2. 2.93V TH 1. 2.8V BATT 1.50 1. 2.5V BATT 1. ...
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PIN MAX16033– MAX16037– NAME MAX16036 MAX16040 (10-pin µDFN) (8-pin µDFN) RESET 1 1 CEIN 2 — PFI 4 3 GND MR WDI 5 4 BATTON RESETIN PFO OUT 9 8 ...
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Low-Power Battery Backup Circuits in Small µDFN Packages 1.235V V CC BATT CEIN (MAX16033–MAX16036 ONLY) MR (MAX16033/MAX16037 ONLY) WDI (MAX16034/MAX16038 ONLY) RESETIN (MAX16036/MAX16040 ONLY) 1.235V 8 _______________________________________________________________________________________ BATTON (MAX16035/MAX16039 ONLY) CHIP-ENABLE RESET GENERATOR WATCHDOG WATCHDOG TRANSITION TIMER DETECTOR GND Functional ...
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Detailed Description The Typical Operating Circuit shows a typical connec- tion for the MAX16033–MAX16040. OUT powers the static random-access memory (SRAM greater than the reset threshold (V TH than V but higher than BATT ...
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Low-Power Battery Backup Circuits in Small µDFN Packages Backup Battery Switchover To preserve the contents of the RAM in a brownout or power failure, the MAX16033–MAX16040 automatically switch to back up the battery installed at BATT when the following two ...
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BATTON Indicator (MAX16035/MAX16039 Only) BATTON is a push-pull output that asserts high when in battery-backup mode. BATTON typically sinks 3.2mA at a 0.4V saturation voltage. In battery-backup mode, this terminal sources approximately 10µA from OUT. Use BATTON to indicate battery-switchover ...
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Low-Power Battery Backup Circuits in Small µDFN Packages A µP’s reset input puts the µ known state. The MAX16033–MAX16040 µP supervisory circuits assert a reset to prevent code-execution errors during power- up, power-down, and brownout conditions. RESET asserts ...
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START SET WDI LOW SUBROUTINE OR PROGRAM LOOP SET WDI HIGH RETURN END Figure 6. Watchdog Flow Diagram Watchdog Software Considerations One way to help the watchdog timer to monitor soft- ware execution more closely is to set and reset ...
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Low-Power Battery Backup Circuits in Small µDFN Packages ( MAX16033– MAX16040 R1 PFI PFO (PUSH-PULL) TO µP PFO TRIP R 1 ⎛ ⎞ ⎜ ...
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Monitoring a Negative Voltage Connect the circuit as shown in Figure 9 to use the power-fail comparator to monitor a negative supply rail. PFO stays low when V- is good. When V- rises to cause PFI to be above +1.235V, ...
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Low-Power Battery Backup Circuits in Small µDFN Packages TOP PART MARK MAX16033LLB23+T +ABE MAX16035LLB23+T MAX16033LLB26+T +ABF MAX16035LLB26+T MAX16035LLB29+ MAX16033LLB29+T +ABG MAX16035LLB31+ MAX16033LLB31+T +ABH MAX16033LLB44+T +ABI MAX16035LLB44+T MAX16035LLB46+ MAX16033LLB46+T +ABJ MAX16033PLB23+T +ABK MAX16035PLB23+T MAX16033PLB26+T +ABL MAX16035PLB26+T MAX16033PLB29+ MAX16035PLB29+ +ABM MAX16033PLB31+ MAX16035PLB31+ ...
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Circuits in Small µDFN Packages TOP VIEW MAX16033 MAX16034 + 10-µDFN ( ) FOR MAX16034 ONLY MAX16037 MAX16038 + 8-µDFN ( ) FOR MAX16038 ONLY + ...
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Low-Power Battery Backup Circuits in Small µDFN Packages 2.4V TO 5.5V ADDITIONAL DC VOLTAGE R3 ADDITIONAL R4 DC VOLTAGE RESETIN APPLIES TO MAX16035/MAX16039 ONLY. **CEIN AND CEOUT APPLY TO MAX16033–MAX16036 ONLY. ***WDI APPLIES TO MAX16034/MAX16038 ONLY. 18 ...
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Ordering Information (continued) PART* TEMP RANGE MAX16035LLB_ _+T -40°C to +85°C 10 µDFN-10 L1022-1 MAX16035PLB_ _+T -40°C to +85°C 10 µDFN-10 L1022-1 MAX16036LLB_ _+T -40°C to +85°C 10 µDFN-10 L1022-1 MAX16036PLB_ _+T -40°C to +85°C 10 µDFN-10 L1022-1 MAX16037LLA_ _+T ...
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Low-Power Battery Backup Circuits in Small µDFN Packages (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) D XXXX XXXX XXXX SAMPLE PIN 1 INDEX AREA ...
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... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 21 © 2007 Maxim Integrated Products ...