Watchdog Timer

Watchdog Timer + Voltage Regulator + Voltage Detector (With Delay Function (External Capacitor Type))

Product
Name
Class Package AEC-
Q100
Operating
Temp.
Range
Operating Voltage
Range
(Absolute Max.)
Voltage Regulator Part Voltage Detector Part Watchdog Timer Part Supply
Current
 Remarks Data
Sheet
(PDF)
Output
Voltage
Range
Output
Voltage
Accuracy
Output
Current
Detector
Threshold
Range
Detector
Threshold
Accuracy
Output
Delay Time
Accuracy
Timeout Period
Min. Typ. Max. Typ.
R5104V K SSOP-10   -40 to 125°C Max. 36.0V
(50.0V)
3.3V to 5.0V ±2.0% Depends
on Ext. Tr.
2.8V to 4.0V ±2.0% CTW=0.1µF 60µA Peak Input Voltage*1 60V Download
200ms 300ms 510ms
R5110Sxx1
R5110Sxx2
K,A HSOP-8E
HSOP-18
Planning -40 to 125°C 3.5V to 36.0V
(50.0V)
1.8V to 5.0V ±1.5% 500mA 1.6V to 5.5V ±1.8%*2 ±20% CTW=0.01µF 25µA Peak Input Voltage*1 60V
Window WDT*3
Thermal Inrush
Download
2.82MB
14.4ms 18ms 21.6ms
Thermal : Thermal Shutdown Circuit   Inrush : Inrush Current Limit Circuit
  • *1Duration time=200ms
  • *2The R5110S is guaranteed specification for the full operating temperature range.
  • *3Window Watchdog Timer monitors the presence of output pulses from a CPU in a preset period of time (OPEN Window) , in case these pulses fail the watchdog timer will initiate a CPU reset after a time out period.

Watchdog Timer + Voltage Detector (With Delay Function (External Capacitor Type))

Product
Name
Class Package AEC-
Q100
Operating
Temp.
Range
Input
Voltage
Range
(Absolute
Max.)
Voltage Detector Part Watchdog Timer Part Supply
Current
TYP.
Remarks Data
Sheet
(PDF)
Detector
Threshold
Range
Detector
Threshold
Accuracy
Output
Delay
Time
Accuracy
Timeout Period
MIN. TYP. MAX.
R5105N J SOT-23-6 Planning -40 to 105°C 0.9V to 6.0V
(7.0V)
1.5V to 5.5V ±1.0% ±16% 230ms 310ms 450ms 11µA   Download
R5106N J SOT-23-6 Planning With INH pin (Inhibit), CD pin and CTW Pin are combined. Download
R5107G J SSOP-8G Planning With INH pin (Inhibit) and MR pin (Manual Reset) Download
R5108G J SSOP-8G Planning 1.5V to 6.0V
(7.0V)
With INH pin (Inhibit) and SENSE pin Download
R5109G J SSOP-8G Planning 0.9V to 6.0V
(7.0V)
11.5µA With INH pin (Inhibit), 2 clock input type Download
R8355N R8 SOT-23-6 Planning -40 to 125°C 0.9V to 6.0V
(7.0V)
1.5V to 5.5V -2.8%*1
+1.5%
±16% 230ms 310ms 450ms 11µA   -
R8356N R8 SOT-23-6 Planning With INH pin (Inhibit), CD pin and CTW Pin are combined. -
R8357G R8 SSOP-8G Planning With INH pin (Inhibit) and MR pin (Manual Reset) -
R8358G R8 SSOP-8G Planning 1.5V to 6.0V
(7.0V)
With INH pin (Inhibit) and SENSE pin -
R8359G R8 SSOP-8G Planning 0.9V to 6.0V
(7.0V)
11.5µA With INH pin (Inhibit), 2 clock input type -
  • *1Specification guaranteed within the operating temperature range
[ Automotive Class ]
Ricoh provides three classes of automotive products corresponding to required quality level.
 

Automotive ICs

 
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