DatasheetsPDF.com

MAX16056 Dataheets PDF



Part Number MAX16056
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description 125nA Supervisory Circuits
Datasheet MAX16056 DatasheetMAX16056 Datasheet (PDF)

19-4686; Rev 0; 6/09 www.DataSheet4U.com 125nA Supervisory Circuits with CapacitorAdjustable Reset and Watchdog Timeouts General Description The MAX16056–MAX16059 are ultra-low-current 125nA (typ) microprocessor (µP) supervisory circuits that monitor a single system supply voltage. These devices assert an active-low reset signal whenever the V CC supply voltage drops below the factory-trimmed reset threshold, manual reset is pulled low, or the watchdog timer runs out (MAX16056/MAX16058). The r.

  MAX16056   MAX16056


Document
19-4686; Rev 0; 6/09 www.DataSheet4U.com 125nA Supervisory Circuits with CapacitorAdjustable Reset and Watchdog Timeouts General Description The MAX16056–MAX16059 are ultra-low-current 125nA (typ) microprocessor (µP) supervisory circuits that monitor a single system supply voltage. These devices assert an active-low reset signal whenever the V CC supply voltage drops below the factory-trimmed reset threshold, manual reset is pulled low, or the watchdog timer runs out (MAX16056/MAX16058). The reset output remains asserted for an adjustable reset timeout period after V CC rises above the reset threshold. Factorytrimmed reset threshold voltages are offered from 1.575V to 4.625V in approximately 100mV increments (see Table 1). These devices feature adjustable reset and watchdog timeout using external capacitors. The MAX16056/ MAX16058 contain a watchdog timer with a watchdog select input (WDS) that multiplies the watchdog timeout period by 128. The MAX16057/MAX16059 do not have the watchdog feature. The MAX16056–MAX16059 are available in either pushpull or open-drain output-type configurations (see the Ordering Information and Selector Guide). These devices are fully specified over the -40°C to +125°C automotive temperature range. The MAX16056/MAX16058 are available in the 8-pin TDFN package, and the MAX16057/ MAX16059 are available in the 6-pin TDFN package. Features o Ultra-Low 125nA (typ) Supply Current o 1.1V to 5.5V Operating Supply Range o Factory-Set Reset Threshold Options from 1.575V to 4.625V in Approximately 100mV Increments o Capacitor-Adjustable Reset Timeout o Capacitor-Adjustable Watchdog Timeout (MAX16056/MAX16058) o Watchdog Timer Capacitor Open Detect Function o Optional Watchdog Disable Function (MAX16056/MAX16058) o Manual Reset Input o Guaranteed RESET Valid for VCC ≥ 1.1V o Push-Pull or Open-Drain RESET Output Options o Power-Supply Transient Immunity o Small, 3mm x 3mm TDFN Package MAX16056–MAX16059 Ordering Information PART PINPACKAGE RESET OUTPUT Push-Pull Push-Pull Open-Drain Open-Drain WATCHDOG TIMER Yes No Yes No MAX16056ATA_ _+T 8 TDFN-EP* MAX16057ATT_ _+T MAX16059ATT_ _+T 6 TDFN-EP* 6 TDFN-EP* MAX16058ATA_ _+T 8 TDFN-EP* Applications Portable/Battery-Powered Equipment PDAs/Cell Phones MP3 Players/Pagers Glucose Monitors/Patient Monitors Metering/HVAC Automotive Infotainment Typical Operating Circuit appears at end of data sheet. Note: All devices are specified over the -40°C to +125°C operating temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. *EP = Exposed pad. “_ _” represents the two number suffix needed when ordering the reset threshold voltage value (see Table 1). Standard versions and their package top marks are shown in Table 3 at the end of data sheet. Pin Configurations TOP VIEW VCC 8 WDS 7 WDI 6 SRT 5 VCC 6 N.C. 5 SRT 4 MAX16056 MAX16058 *EP 1 2 3 SWT 4 MR *CONNECT EXPOSED PAD TO GND. 1 MAX16057 MAX16059 *EP 2 GND 3 MR RESET GND RESET TDFN TDFN ________________________________________________________________ Maxim Integrated Products 1 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. www.DataSheet4U.com 125nA Supervisory Circuits with CapacitorAdjustable Reset and Watchdog Timeouts MAX16056–MAX16059 ABSOLUTE MAXIMUM RATINGS VCC to GND ..............................................................-0.3V to +6V SRT, SWT, WDS, MR, WDI, to GND ...........-0.3V to (VCC + 0.3V) RESET (Push-Pull) to GND .........................-0.3V to (VCC + 0.3V) RESET (Open-Drain) to GND ...................................-0.3V to +6V Input Current (all pins) .................................................... ±20mA Output Current (RESET) ................................................. ±20mA Continuous Power Dissipation (TA = +70°C) 6-Pin TDFN (derate 23.8mW/°C above +70°C) .........1905mW 8-Pin TDFN (derate 24.4mW/°C above +70°C) .........1951mW Junction-to-Ambient Thermal Resistance (θJA) (Note 1) 6-Pin TDFN ...................................................................42°C/W 8-Pin TDFN ...................................................................41°C/W Junction-to-Case Thermal Resistance (θJC) (Note 1) 6-Pin TDFN .....................................................................9°C/W 8-Pin TDFN .....................................................................8°C/W Operating Temperature Range .........................-40°C to +125°C Storage Temperature Range .............................-65°C to +150°C Junction Temperature .....................................................+150°C Lead Temperature (soldering, 10s) .................................+300°C Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. Stresses beyond those listed unde.


MAX16055 MAX16056 MAX16057


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)