Datasheet MAX16152, MAX16153, MAX16154, MAX16155 (Maxim) - 4
| Fabricante | Maxim |
| Descripción | nanoPower Supervisor and Watchdog Timer |
| Páginas / Página | 20 / 4 — Electrical Characteristics. PARAMETER. SYMBOL. CONDITIONS. MIN. TYP. MAX. … |
| Formato / tamaño de archivo | PDF / 473 Kb |
| Idioma del documento | Inglés |
Electrical Characteristics. PARAMETER. SYMBOL. CONDITIONS. MIN. TYP. MAX. UNITS. WATCHDOG
Línea de modelo para esta hoja de datos
Versión de texto del documento
MAX16152/MAX16153/ nanoPower Supervisor and Watchdog Timer MAX16154/MAX16155
Electrical Characteristics
((VCC = 1.2V to 5.5V, TA = -40ºC to +125ºC. Limits over the operating temperature range and relevant supply voltage range are guaranteed by production test and/or characterization. Typical values are at TA = +25ºC and VCC = VTH + 150mV.))
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range 1.2 5.5 V Outputs not asserted, V Supply Current CC = VTH + 400 900 nA 150mV VCC Threshold Range 1.5 5 V VCC Reset Threshold V Accuracy TH_AC VCC falling -2.5 +2.5 % VCC Reset Threshold V Hysteresis CC rising 0.4 % V V CC falling from (VTH + 100mV) to (VTH - CC to Reset Delay tRD 80 μs 100mV) Reset Timeout Period t Accuracy RP_AC Note 1 -50 +50 %
WATCHDOG
Watchdog Timeout t Period Accuracy WD_AC -50 +50 % Watchdog Startup Delay t Accuracy START-UP_AC -50 +50 % Time between low-to-high transition of Watchdog Setup Time tSETUP 300 μs WD_EN and watchdog timer enabled. VCC ≥ 1.0V, ISINK = 50μA 0.3 Output Voltage Low VOL VCC > 2.7V, ISINK = 1.2mA 0.3 V VCC > 4.5V, ISINK = 3.2mA 0.4 Watchdog Input Pulse t Width WDI After WDO deasserted 1 μs Watchdog Output Pulse t Width WDO 100 300 ms 0.8 x Input Voltage High VIH V VCC 0.3 x VCC ≥ 3.3V VCC Input Logic-Low VIL WDI, MR, WD_EN V 0.3 x VCC ≥ 1.5V VCC Watchdog Output V Leakage Current WDO = 0 to 5.5V, output deasserted 1 μA Reset Ouput Leakage VRST = 0 to 5.5V, reset output 1 μA Current deasserted WD_EN Input Glitch 300 ns Rejection Manual Reset Input 200 ns Glitch Rejection www.maximintegrated.com Maxim Integrated | 4 Document Outline General Description Applications Benefits and Features Typical Application Circuit Absolute Maximum Ratings Package Information Electrical Characteristics Pin Configurations 6 WLP 6 SOT23 6 WLP 6 SOT23 Pin Description Functional Diagrams MAX16152/MAX16153 Block Diagram MAX16154/MAX16155 Block Diagram Detailed Description Input Threshold Watchdog Watchdog Startup Delay Watchdog Timeout Period Watchdog Enable Input (WD_EN) Watchdog Input Signal Reset Timeout Period Manual Reset Applications Information Power Supply Bypassing Watchdog Software Considerations Negative-Going VCC Transients Protection Selector Guide Ordering Information Revision History
Electrical Characteristics
((VCC = 1.2V to 5.5V, TA = -40ºC to +125ºC. Limits over the operating temperature range and relevant supply voltage range are guaranteed by production test and/or characterization. Typical values are at TA = +25ºC and VCC = VTH + 150mV.))
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range 1.2 5.5 V Outputs not asserted, V Supply Current CC = VTH + 400 900 nA 150mV VCC Threshold Range 1.5 5 V VCC Reset Threshold V Accuracy TH_AC VCC falling -2.5 +2.5 % VCC Reset Threshold V Hysteresis CC rising 0.4 % V V CC falling from (VTH + 100mV) to (VTH - CC to Reset Delay tRD 80 μs 100mV) Reset Timeout Period t Accuracy RP_AC Note 1 -50 +50 %
WATCHDOG
Watchdog Timeout t Period Accuracy WD_AC -50 +50 % Watchdog Startup Delay t Accuracy START-UP_AC -50 +50 % Time between low-to-high transition of Watchdog Setup Time tSETUP 300 μs WD_EN and watchdog timer enabled. VCC ≥ 1.0V, ISINK = 50μA 0.3 Output Voltage Low VOL VCC > 2.7V, ISINK = 1.2mA 0.3 V VCC > 4.5V, ISINK = 3.2mA 0.4 Watchdog Input Pulse t Width WDI After WDO deasserted 1 μs Watchdog Output Pulse t Width WDO 100 300 ms 0.8 x Input Voltage High VIH V VCC 0.3 x VCC ≥ 3.3V VCC Input Logic-Low VIL WDI, MR, WD_EN V 0.3 x VCC ≥ 1.5V VCC Watchdog Output V Leakage Current WDO = 0 to 5.5V, output deasserted 1 μA Reset Ouput Leakage VRST = 0 to 5.5V, reset output 1 μA Current deasserted WD_EN Input Glitch 300 ns Rejection Manual Reset Input 200 ns Glitch Rejection www.maximintegrated.com Maxim Integrated | 4 Document Outline General Description Applications Benefits and Features Typical Application Circuit Absolute Maximum Ratings Package Information Electrical Characteristics Pin Configurations 6 WLP 6 SOT23 6 WLP 6 SOT23 Pin Description Functional Diagrams MAX16152/MAX16153 Block Diagram MAX16154/MAX16155 Block Diagram Detailed Description Input Threshold Watchdog Watchdog Startup Delay Watchdog Timeout Period Watchdog Enable Input (WD_EN) Watchdog Input Signal Reset Timeout Period Manual Reset Applications Information Power Supply Bypassing Watchdog Software Considerations Negative-Going VCC Transients Protection Selector Guide Ordering Information Revision History