R5115x Series AEC-Q100 Compliant 42 V System Power Supply with Ultra-low Power Window-type Watchdog Timer for Automotive Application No. EC-409-210318 OVERVIEW The R5115x is a system power supply IC with an ultra-low power window-type watchdog timer (VR + VD + WDT) that has an input voltage range of 3.5 V to 42 V. KEY BENEFITS Consists of a voltage regulator, a voltage detector and a watchdog timer that provides a system power supply, a power supply voltage monitoring and a system malfunction monitoring. ( 1) Equipped with an auto monitoring stop to cease the watchdog timer monitoring at light load. Outputs a reset signal from watchdog timer when a pulse signal period is too short or too long. TYPICAL APPLICATION KEY SPECIFICATIONS VIN Microprocessor Input Voltage Range (Absolute Maximum Rating): VDD VOUT VCC C2 R5115xxx2C R1 3.5 V to 42.0 V (50.0 V) C1 CE CE Control Supply Current: Typ. 8.5 A DOUT RESET GND WDO C D Protections: Thermal Shutdown, Output Current Limiting, CD TW SCK I/O CTW I/O Short-circuit Current Limiting WADJ INH R2 Voltage Regulator (VR) Section Output Voltage Range: 3.3 V to 5.0 V C , C : 0.1 F, Ceramic capacitor IN OUT Output Voltage Accuracy: 1.6% (40C Ta 125C) C : Capacitor for setting watchdog timer TW Output Current: 250 mA C : Capacitor for setting reset delay time D Voltage Detector (VD) Section SELECTION GUIDE Detection Voltage Threshold Range: 2.5 V to 4.8 V Detection Voltage Accuracy: 1.6% (40C Ta 125C) Product Name Package Quantity per Reel HSOP-8E 1,000 pcs R5115Sxx1-E2- E Watchdog Timer (WDT) Section R5115Sxx2-E2- E HSOP-18 1,000 pcs Watchdog Timer Accuracy (tow): 17.8% to 21.7% R5115Lxx2-TR- E HQFN0808-28 2,000 pcs xx: Set Output Voltage (VSET) and Set Detection Voltage (-VDSET) (40C Ta 125C) Assign a code starting from 01 to designate a desired combination of PACKAGES V SET and V DSET. Refer to Product-specific Electrical Characteristics for detailed information. : Other Functions Package WADJ WDO Pin RESETB/DOUT Pin A HSOP-8E Internally fixed No RESETB B HSOP-8E No No RESETB HSOP-18 C Adjustable Yes DOUT HQFN0808-28 HSOP-8E HSOP-18 : Select the quality class 5.2 x 6.2 x 1.6* mm 5.2 x 6.2 x 1.6* mm Operating Temp. Range Test Temp. *maximum dimension *maximum dimension A 40C to 125C 25C, High K 40C to 125C Low, 25C, High APPLICATIONS Microprocessor-based Electronic Equipment for Automotive Applications Electric Vehicle (EV) Inverters and Charge HQFN0808-28 Controllers 8.8 x 8.8 x 0.95 mm (1) R5115Sxx1A, R5115xxx2C only 1 R5115x No. EC-409-210318 SELECTION GUIDE A set detection voltage, a package type, a WADJ function, a WDO pin and a RESETB/DOUT pin are user- selectable options. Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free R5115Sxx1-E2- E HSOP-8E 1,000 pcs Yes Yes R5115Sxx2-E2- E HSOP-18 1,000 pcs Yes Yes HQFN0808-28 2,000 pcs Yes Yes R5115Lxx2-TR- E xx: Set Output Voltage (VSET) and Set Detection Voltage (-VDSET) Assign a code starting from 01 to designate a desired combination of VSET and -VDSET. Refer to Product-specific Electrical Characteristics for detailed information. : Other Functions Package WDT Type WADJ Function WDO Pin RESETB/DOUT Pin A HSOP-8E Window Internally fixed No RESETB B HSOP-8E Window No No RESETB HSOP-18 C Window Adjustable Yes DOUT HQFN0808-28 : Select the quality class Operating Temp. Range Test Temp. A 40C to 125C 25C, High K 40C to 125C Low, 25C, High 2