MAX16058:125nA Supervisory Circuits with Capacitor-Adjustable Reset and Watchdog Timeouts

Capacitor-Adjustable Nanopower Supervisory Circuits

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 VCC 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 VCC rises above the reset threshold. Factory-trimmed reset threshold voltages are offered from 1.575V to 4.625V in approximately 100mV increments (see Table 1 in the full data sheet). 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 push-pull or open-drain output-type configurations (see the Ordering Information in the full data sheet). 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.

Key Features
  • Reduced Power Requirements
    • Ultra-Low 125nA (typ) Supply Current
    • 1.1V to 5.5V Operating Supply Range
  • Configurable Circuit Enables Flexible Designs
    • Factory-Set Reset Threshold Options from 1.575V to 4.625V in Approximately 100mV Increments
    • Capacitor-Adjustable Reset Timeout
    • Capacitor-Adjustable Watchdog Timeout (MAX16056/MAX16058)
    • Watchdog Timer Capacitor Open Detect Function
    • Optional Watchdog Disable Function (MAX16056/MAX16058)
    • Manual-Reset Input
    • Push-Pull or Open-Drain Active-Low RESET Output Options
  • Integrated Features Increases System Robustness
    • Power-Supply Transient Immunity
    • Guaranteed Active-Low RESET Valid for VCC ≥ 1.1V
  • Saves Board Space
    • 3mm x 3mm TDFN Package
MAX16056, MAX16057, MAX16058, MAX16059: Typical Operating Circuit
MAX16056, MAX16057, MAX16058, MAX16059: Typical Operating Circuit
Applications/Uses
  • Glucose Monitors/Patient Monitors
  • Metering/HVAC
  • MP3 Players/Pagers
  • PDAs/Cell Phones
  • Portable/Battery-Powered Equipment
DataSheet
titleDownload file
MAX16056-MAX16059 Data SheetMAX16056-MAX16059.pdf
Parametrics
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureWatchdog TimeoutSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX160561.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Push-Pull
AdjustableCap Adjustable
Input (WDI)
AdjustableManual Reset2.50.125TDFN-EP/8$1.97 @1k
MAX16057Active Low
Push-Pull
No Watchdog-TDFN-EP/6$1.56 @1k
MAX16058Active Low
Open Drain
Cap Adjustable
Input (WDI)
AdjustableTDFN-EP/8$1.76 @1k
MAX16059Active Low
Open Drain
No Watchdog-TDFN-EP/6$1.56 @1k
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX16058ATA16+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA16+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA17+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA17+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA18+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA19+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA20+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA21+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA21+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA22+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX16058ATA22+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA23+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA24+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA25+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA26+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA26+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA27+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA27+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA28+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA28+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX16058ATA29+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA29+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA30+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA30+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA31+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA31+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA32+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA33+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA34+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA35+TActiveTDFN;-40°C to +125°CSee data sheet
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX16058ATA36+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA37+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA38+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA39+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA40+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA41+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA42+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA43+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA44+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA44+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX16058ATA45+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATA46+ActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATA46+TActiveTDFN-EP,;8 pin;9.6 mm²-40°C to +125°CLead Free
MAX16058ATT29+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16058ATT46+TActiveTDFN;-40°C to +125°CSee data sheet
MAX16056-MAX16059.pdf MAX16059
MAX16056-MAX16059_cn.pdf MAX16059
MAX16058.pdf MAX16058
典型工作电路 MAX16059