MAX6728KATGD3+T Maxim Integrated Products, MAX6728KATGD3+T Datasheet
MAX6728KATGD3+T
Specifications of MAX6728KATGD3+T
Related parts for MAX6728KATGD3+T
MAX6728KATGD3+T Summary of contents
Page 1
... RSTIN/PFI MR R2 MAX67_ _ PUSHBUTTON SWITCH ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Supervisory Circuits ♦ from 1.58V to 4.63V ♦ Voltages from 0.79V to 3.08V ♦ Externally Adjustable RSTIN Threshold for Auxiliary/Triple-Voltage Monitoring (0 ...
Page 2
Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND ..........................................................-0. RST, RST1, RST2, PFO, RST ................-0.3V to +6V Open-Drain Push-Pull RST, RST1, PFO, RST...............-0. ...
Page 3
Dual/Triple Ultra-Low-Voltage SOT23 µP ELECTRICAL CHARACTERISTICS (continued 0.8V to 5.5V, GND = PARAMETER SYMBOL V to Reset Output Delay CC Reset Timeout Period ADJUSTABLE RESET COMPARATOR INPUT (MAX6719/MAX6720/MAX6723–MAX6727) RSTIN Input ...
Page 4
Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued 0.8V to 5.5V, GND = PARAMETER SYMBOL RESET/POWER-FAIL OUTPUTS RST/RST1/RST2/PFO Output LOW V (Push-Pull or Open-Drain) RST/RST1/PFO Output HIGH V (Push-Pull ...
Page 5
Dual/Triple Ultra-Low-Voltage SOT23 µ 5V 3.3V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 5V 3. TOTAL 14 12 ...
Page 6
Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits ( 5V 3.3V +25°C, unless otherwise noted RESET INPUT TO RESET OUTPUT DELAY vs. TEMPERATURE 24.4 30mV OVERDRIVE 24.2 24.0 23.8 23.6 23.4 23.2 ...
Page 7
Dual/Triple Ultra-Low-Voltage SOT23 µP MAX6715/ MAX6717/ MAX6719/ MAX6721/ MAX6716 MAX6718 MAX6720 MAX6722 5 — — _______________________________________________________________________________________ Supervisory Circuits PIN MAX6723/ MAX6725/ MAX6727 MAX6724 MAX6726 — — — — ...
Page 8
Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits MAX6715/ MAX6717/ MAX6719/ MAX6721/ MAX6716 MAX6718 MAX6720 MAX6722 — — — — — 5 — — — 8 _______________________________________________________________________________________ PIN MAX6723/ MAX6725/ MAX6727 MAX6724 MAX6726 — — ...
Page 9
Dual/Triple Ultra-Low-Voltage SOT23 µP MAX6715/ MAX6717/ MAX6719/ MAX6721/ MAX6716 MAX6718 MAX6720 MAX6722 — — — — — — Detailed Description The MAX6715–MAX6729 microprocessor (µP) supervi- sory circuits maintain system integrity by alerting the µP to fault conditions. These ICs are ...
Page 10
Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits restarts. The MAX6715/MAX6717/MAX6719/MAX6721/ MAX6723/MAX6725/MAX6727/MAX6728 contain open- drain reset outputs, while the MAX6716/MAX6718/ MAX6720/MAX6722/MAX6724/MAX6726/MAX6729 contain push-pull reset outputs. The MAX6727 provides two separate open-drain RST outputs driven by the same internal logic. Manual Reset Input ...
Page 11
Dual/Triple Ultra-Low-Voltage SOT23 µ MAX6728/ MAX6729 R1 V PFI PFO R2 GND MAX6728/ MAX6729 R1 V TRIP PFI PFO V = 626.5mV PFI GND Figure 3. Using Power-Fail Input to Monitor ...
Page 12
Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits PFO V MAX6728/ EXT MAX6729 R1 PFI PFO V = DESIRED V GOOD EXT DESIRED V FAIL EXT (FOR PUSH-PULL PFO ...
Page 13
Dual/Triple Ultra-Low-Voltage SOT23 µ REF RSTIN/PFI V REF V REF/2 ______________________________________________________________________________________ Supervisory Circuits Functional Diagram PULLUP RESET RESET TIMEOUT OUTPUT PERIOD DRIVER ...
Page 14
Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits NUMBER OF OPEN- PART VOLTAGE DRAIN NUMBER RESET MONITORS MAX6715 2 MAX6716 2 MAX6717 2 MAX6718 2 MAX6719 3 MAX6720 3 MAX6721 2 MAX6722 2 MAX6723 3 MAX6724 3 MAX6725 3 MAX6726 3 MAX6727 ...
Page 15
Dual/Triple Ultra-Low-Voltage SOT23 µP Table 1. Reset Voltage Threshold Suffix Guide** PART NUMBER V 1 NOMINAL CC SUFFIX VOLTAGE (_ _) THRESHOLD (V) LT 4.625 MS 4.375 MR 4.375 TZ 3.075 SY 2.925 RY 2.625 TW 3.075 SV 2.925 RV ...
Page 16
Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits TOP VIEW RST1 1 6 MAX6715/ GND 2 5 MAX6716 SOT23 RST 1 6 MAX6721/ GND 2 5 MAX6722 SOT23 RST 1 GND 2 WDI 3 RST 4 ...
Page 17
Dual/Triple Ultra-Low-Voltage SOT23 µP (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ Supervisory Circuits Package Information PACKAGE OUTLINE, SOT-23, 5L 21-0057 ...
Page 18
Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 18 ______________________________________________________________________________________ Package Information (continued) PACKAGE OUTLINE, SOT 6L BODY 21-0058 ...
Page 19
... 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 ____________________ 19 © 2005 Maxim Integrated Products ...