R5115 Series
Low Supply Current 42V Input System Power Supply with Window-type Watchdog Timer
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Description
The R5115 is a system power supply IC with an ultra-low power window-type watchdog timer (LDO + VD + WDT) that has an input voltage range of 3.5 V to 42 V.
The R5115 offers a low current consumption of 8.5 µA at operation and 0.2 µA at standby. When ECU goes into sleep, the device automatically turns the built-in WDT off to prevent it from sending a reset signal. When ECU goes back to active, the device automatically turns the built-in WDT on to resume the ECU monitoring.
The R5115 is also available with the version that is not equipped with an auto monitoring stop.
The R5115 is equipped with a window-type watchdog timer that is capable of detecting errors not only caused by over-timing but also by short-timing.
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Spec
Consumer Industrial Automotive Input Voltage Range 3.5 V to 42.0 V (50.0 V) Operating Temperature Range -40°C to 105°C (125°C) -40°C to 125°C (150°C) -40°C to 125°C (150°C) Supply Current Typ. 8.5 µA Standby Current Typ. 0.2 µA Open Window Time Typ. 18 ms (CTW = 10 nF) Closed Window Time Typ. 4.5 ms (CTW = 10 nF) Pulse Ignoring Time Typ. 18 ms (CTW = 10 nF) Timeout Period Typ. 18 ms Timeout Period Accuracy -17.8% to 21.7% Reset Time Typ. 9 ms (CTW = 10 nF) Package HSOP-8E, HSOP-18, HQFN0808-28 VD Detector Threshold Range 2.5 V to 4.8 V VD Detector Threshold Accuracy ±1.6% VD Release Output Delay Time Typ. 220 ms (CD = 0.22 µF) LDO Output Voltage Range 3.3 V to 5.0 V LDO Output Voltage Accuracy ±1.6% LDO Short-circuit Current Limit Typ. 95 mA LDO Output Current Limit Typ. 440 mA LDO Thermal Shutdown Typ. 170°C -
Technical
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SPICE model download
You can download the product's SPICE model. Login/registration to myNISD is required to download.
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R5115Sxx2C Typical Application
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R5115Sxx2C (Window type) Timing Chart
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Quality &
PackagesProduct Name Compatibility Package Marking Reliability R5115Sxx1x-E2-FE HSOP-8E R5115Sxx1 R5115Sxx1-FE R5115Sxx2C-E2-FE HSOP-18 R5115Sxx2 R5115Sxx2-FE R5115Lxx2C-TR-FE HQFN0808-28 R5115L R5115L-FE R5115Sxx1x-E2-YE HSOP-8E R5115Sxx1 R5115Sxx1-YE R5115Sxx2C-E2-YE HSOP-18 R5115Sxx2 R5115Sxx2-YE R5115Lxx2C-TR-YE HQFN0808-28 R5115L R5115L-YE R5115Sxx1x-E2-KE HSOP-8E R5115Sxx1 R5115Sxx1-KE R5115Sxx1x-E2-AE HSOP-8E R5115Sxx1 R5115Sxx1-AE R5115Sxx2C-E2-KE HSOP-18 R5115Sxx2 R5115Sxx2-KE R5115Sxx2C-E2-AE HSOP-18 R5115Sxx2 R5115Sxx2-AE R5115Lxx2C-TR-KE HQFN0808-28 R5115L R5115L-KE R5115Lxx2C-TR-AE HQFN0808-28 R5115L R5115L-AE - Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
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