R5108G SERIES AEC-Q100 Compliant Microprocessor Supervisory Circuit with SENSE pin for Automotive Applications NO.EC-171-200602 OUTLINE The R5108G is a microprocessor supervisory circuit and has high accuracy and ultra low supply current voltage detector with built-in delay circuit and watchdog timer. When the SENSE voltage is down across the threshold, or the watchdog timer does not detect the system clock from the microprocessor, the reset output is generated. The voltage detector circuit is used for the system reset, etc. The detector threshold is fixed internally, and the accuracy is 1.0%. The released delay time (Power-on Reset Delay) circuit is built-in, and output delay time is (1) adjustable with an external capacitor, and the accuracy is 16% (R5108Gxx1x-TR-JE: 40C Ta 105C) . When the SENSE voltage becomes the released voltage, the reset state will be maintained during the delay time. The output type of the reset is selectable, Nch open-drain, or CMOS. The time out period of the watchdog timer can be also set with an external capacitor, and the accuracy is (1) 33% . There is a function to stop supervising clock by the watchdog timer (INH function). A necessary voltage source can be supervised with SENSE pin. There are another 4 products by the difference of packages and the function of voltage detector and watchdog timer. The package of R5108G is SSOP-8G. The package of R5108G is SSOP-8G. FEATURES Operating Voltage Range (Maximum Rating) .................. 1.5V to 6.0V (7.0V) Supply Current ................................................................. Typ. 11A < Voltage Detector Part > Detector Threshold Range ............................................... 1.5V to 5.5V (0.1V steps) Detector Threshold Accuracy ........................................... 1.0% Detector Threshold Temperature Coefficient ................... Typ. 100 ppm/C R5108Gxx1x-TR-AE: 40C Ta 125C R5108Gxx1x-TR-JE: 40C Ta 105C (1) Power-on Reset Delay Time accuracy ....................... 18% (R5108Gxx1x-TR-AE: 40C Ta 125C) 16% (R5108Gxx1x-TR-JE: 40C Ta 105C) Power-on reset delay time of the voltage detector .......... Typ. 370ms with an external capacitor : 0.1F With SENSE pin ............................................................... Able to keep L reset signal < Watchdog Timer Part > (1) Built-in a watchdog timer s time out period accuracy .... 33% R5108Gxx1x-TR-AE: 40C Ta 125C R5108Gxx1x-TR-JE: 40C Ta 105C Timeout period for watchdog timer .................................. Typ. 310ms with an external capacitor : 0.1F Reset timer for watchdog timer ........................................ Typ. 34ms with an external capacitor : 0.1F With Inhibit pin (INH) ........................................................ Able to stop watchdog timer Package ........................................................................... SSOP-8G APPLICATIONS Voltage monitoring for electronic control units such as EV inverter and battery charge control unit. (1) Accuracy to center value of (Min.+Max.)/2 1 R5108G NO.EC-171-200602 SELECTION GUIDE The detector threshold, the output type and the taping type for the ICs can be selected at the users request. The selection can be made with designating the part number as shown below Product Name Package Quantity per Reel Pb Free Halogen Free SSOP-8G 3,000 pcs Yes Yes R5108Gxx1-TR- E xx : The detector threshold (-VDET) can be designated in the range from 1.5V(15) to 5.5V(55) in 0.1V steps. : Designation of Output Type (A) Nch Open Drain (C) CMOS : Quality Class Operating Temperature Range Test Temp. AEC-Q100 A 40C to 125C 25C, High Grade 1 J 40C to 105C Low, 25C, High Grade 2 Series Selection R5105N R5106N R5107G R5108G R5109G Package SOT-23-6 SSOP-8G With INH pin (Inhibit) No Yes 2 clock input No Yes With MR pin (Manual No Yes No Reset) With SENSE pin No Yes No CD pin and Operating Supply Current Remarks CTW pin are Voltage Range 11.5A combined uses. 1.5V to 6.0V 2