R5111 Series
36V Input System Power Supply with Watchdog Timer
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Provides at-a-glance product features, functions, and concepts.
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Description
R5111 Series are the system power supply and supervisor IC based on the high-voltage CMOS process technology, and have high accuracy and ultra low supply current voltage.
R5111 consists of a regulator (VR), a voltage detector (VD), and a normal/ window type of watchdog timer (WDT) in a chip, and can provide three functions of the system power supply, the supply voltage supervisor, and the supervision of system’s misoperation.
R5111 supports the packages of HSOP-8E, HSOP-18 and HQFN0808-28.
Spec
| Industrial | Automotive | |
|---|---|---|
| Input Voltage Range | 3.5 V to 36.0 V (50.0 V) | |
| Operating Temperature Range | -40°C to 105°C (125°C) | -40°C to 125°C (150°C) |
| Supply Current | Typ. 25 µA | |
| Standby Current | Typ. 0.2 µA | |
| Output Voltage Range | 1.8 V to 5.0 V | |
| Output Voltage Accuracy | ±1.5% (－40°C≤Ta≤125°C) | |
| Output Current | Min. 300 mA | |
| Package | HSOP-8E, HSOP-18, HQFN0808-28 | |
Protections / Functions
| TSD | Reverse | Current Limit | ISC | Inrush | ECO mode | Auto Discharge | External Driver | PGOOD | Soft Start |
|---|---|---|---|---|---|---|---|---|---|
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Functional Description
| TSD | Thermal Shutdown Function |
|---|---|
| Reverse Current Protection | Reverse Current Protection |
| Current Limit | Overcurrent Protection |
| ISC | Short Current Protection |
| Inrush Current Limit | Inrush Current Protection |
| Constant Slope | Constant Slope Function |
| ECO mode | ECO Function |
| Auto Discharge | Auto Discharge Function |
| External Driver | External Output Driver Transistor |
Technical Documents
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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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R5111Sxx2C/2D Typical Application
C1 = Ceramic 0.1 µF, C2 = Ceramic 0.1 µF
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R5111Sxx2D (Window type) Timing Chart
* TWVREFH : TW pin voltage at the end of WDT timeout period
* TWVREFL : TW pin voltage at the begin of WDT timeout period
* tdelay : Release Delay Time
* tIGN : Ignoring Time
* tOWL : Long Term Open Window Time
* tCW : Closed Window Time
* tOW : Open Window Time
* tWR : Reset Time
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| R5111Sxx1x-E2-YE |
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HSOP-8E | See datasheet | R5111Sxx1-YE |
| R5111Sxx2x-E2-YE |
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HSOP-18 | See datasheet | R5111Sxx2-YE |
| R5111Lxx2x-TR-YE |
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HQFN0808-28 | See datasheet | R5111L-YE |
| R5111Sxx1x-E2-KE |
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HSOP-8E | See datasheet | R5111Sxx1-KE |
| R5111Sxx1x-E2-AE |
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HSOP-8E | See datasheet | R5111Sxx1-AE |
| R5111Sxx2x-E2-KE |
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HSOP-18 | See datasheet | R5111Sxx2-KE |
| R5111Sxx2x-E2-AE |
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HSOP-18 | See datasheet | R5111Sxx2-AE |
| R5111Lxx2x-TR-KE |
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HQFN0808-28 | See datasheet | R5111L-KE |
| R5111Lxx2x-TR-AE |
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HQFN0808-28 | See datasheet | R5111L-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.
FAQ
Buy / Contact
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Purchase, Request for samples and documentsSales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
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Available from 1 piece!Our electronic device products are available through our authorized online distributors.
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Technical Support