TPS3850H33QDRCRQ1 Automotive, window supervisor for OV & UV monitoring with window watchdog timer & programmable delay 10-VSON -40 to 125
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | Texas Instruments |
| Product Category: | Supervisory Circuits |
| Type: | Voltage Supervisory |
| Mounting Style: | SMD/SMT |
| Package / Case: | VSON-10 |
| Threshold Voltage: | 3.3 V |
| Number of Inputs Monitored: | 1 Input |
| Output Type: | Active Low, Open Drain |
| Manual Reset: | No Manual Reset |
| Watchdog Timers: | Watchdog |
| Battery Backup Switching: | No Backup |
| Reset Delay Time: | 200 ms |
| Supply Voltage - Max: | 6.5 V |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 125 C |
| Accuracy: | 0.8 % |
| Series: | TPS3850-Q1 |
| Qualification: | AEC-Q100 |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Brand: | Texas Instruments |
| Chip Enable Signals: | No Chip Enable |
| Development Kit: | TPS3850EVM-781 |
| Features: | Over Voltage Sense, Watchdog Disable, Watchdog Timer, Window Comparator, Window Watchdog |
| Moisture Sensitive: | Yes |
| Operating Supply Current: | 10 uA |
| Power Fail Detection: | No |
| Product Type: | Supervisory Circuits |
| Factory Pack Quantity: | 3000 |
| Subcategory: | PMIC - Power Management ICs |
| Supply Voltage - Min: | 1.6 V |
| Unit Weight: | 0.000695 oz |
♠ TPS3850-Q1 Precision Voltage Supervisor with Programmable Window Watchdog Timer
The TPS3850-Q1 combines a precision voltage supervisor with a programmable window watchdog timer. The TPS3850-Q1 window comparator achieves 0.8% accuracy (–40°C to +125°C) for both overvoltage (VIT+(OV)) and undervoltage (VIT–(UV)) thresholds on the SENSE pin. The TPS3850-Q1 also includes accurate hysteresis on both thresholds, making the device ideal for use with tight tolerance systems. The supervisor RESET delay can be set by factory-programmed default delay settings, or programmed by an external capacitor. The factoryprogrammed RESET delay features a 9.5% accuracy, high-precision delay timing.
The TPS3850-Q1 includes a programmable window watchdog timer for a wide variety of applications. The dedicated watchdog output ( WDO) enables increased resolution to help determine the nature of fault conditions. The window watchdog timeouts can be set by factory-programmed default delay settings, or programmed by an external capacitor. The watchdog can be disabled via logic pins to avoid undesired watchdog timeouts during the development process.
The TPS3850-Q1 is available in a small 3.00-mm × 3.00-mm, 10-pin VSON package. The TPS3850-Q1 features wettable flanks for easy optical inspection.
• AEC-Q100 Qualified with the following results:
– Device temperature grade 1: –40°C to 125°C ambient operating temperature range
– Device HBM ESD classification level 2
– Device CDM ESD classification level C4B
• Functional Safety-capable
– Documentation available to aid functional safety system design
• Input voltage range: VDD = 1.6 V to 6.5 V
• 0.8% Voltage threshold accuracy (Maximum)
• Low supply current: IDD = 10 µA (typical)
• User-programmable watchdog timeout
• User-programmable reset delay
• Factory programmed precision watchdog and reset timers
• Open-drain outputs
• Precision over- and undervoltage monitoring:
– Supports common rails from 0.9 V to 5.0 V
– 4% and 7% Fault windows available
– 0.5% Hysteresis
• Watchdog disable feature
• Available in a small 3-mm × 3-mm, 10-Pin VSON package
• On-board (OBC) & wireless charger
• Driver monitoring
• Digital cockpit processing unit
• Adas domain controller
• Automotive telematics control unit
