TPS3897 Series
Single-channel, ultra-small, adjustable supervisor with active-high, open-drain output
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Mounting Type | Package / Case | Voltage - Threshold | Reset | Output | Supplier Device Package▲▼ | Supplier Device Package▲▼ | Supplier Device Package | Number of Voltages Monitored▲▼ | Reset Timeout | Type | Operating Temperature▲▼ | Operating Temperature▲▼ | Function | Primary Attributes▲▼ | Primary Attributes | Primary Attributes▲▼ | Utilized IC / Part | Embedded▲▼ | Supplied Contents |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Surface Mount | 6-UFDFN | Adjustable/Selectable | Active High | Open Drain or Open Collector | 1 ul | 1.4500000476837158 ul | 6-SON | 1 ul | Adjustable/Selectable | Simple Reset/Power-On Reset | 125 °C | -40 °C | ||||||||
Texas Instruments TPS3897A-6P-EVM047TPS3897A, TPS3896P Power Supply Supervisor/Tracker/Sequencer Power Management Evaluation Board | Power Management | Power Supply Supervisor/Tracker/Sequencer | 6.5 V | Single Channel | 1.7000000476837158 V | TPS3896P, TPS3897A | Board(s) |
Key Features
• Very Small USON (1.45 mm × 1.00 mm) PackageAdjustable Threshold Down to 500 mVThreshold Accuracy: 1% Over TemperatureCapacitor-Adjustable Delay TimeLow Quiescent Current: 6 µA (Typical)External Enable InputOpen-Drain (Rated at 18 V) and Push-Pull OutputOptionsTemperature Range: –40°C to 125°CPin-for-Pin Compatible With MAX6895/6/7/8Very Small USON (1.45 mm × 1.00 mm) PackageAdjustable Threshold Down to 500 mVThreshold Accuracy: 1% Over TemperatureCapacitor-Adjustable Delay TimeLow Quiescent Current: 6 µA (Typical)External Enable InputOpen-Drain (Rated at 18 V) and Push-Pull OutputOptionsTemperature Range: –40°C to 125°CPin-for-Pin Compatible With MAX6895/6/7/8
Description
AI
The TPS3895, TPS3896, TPS3897, and TPS3898 devices (TPS389x) are a family of very small supervisory circuits that monitor voltages greater than 500 mV with a 0.25% (typical) threshold accuracy and offer adjustable delay time using external capacitors. The TPS389x family also has a logic enable pin (ENABLE orENABLE) to power on and off the output. With the TPS3895, for example, when the input voltage pin (SENSE) rises above the threshold, and the ENABLE pin is high, then the output pin (SENSE_OUT) goes high after the capacitor-adjustable delay time. When SENSE falls below the threshold or ENABLE is low, then SENSE_OUT goes low.
For TPS389xA versions, both SENSE and ENABLE have a capacitor-adjustable delay. The output asserts after this capacitor-adjustable delay when both SENSE and ENABLE inputs are good. The TPS389xP devices have a small, 0.2-µs propagation delay from when the enable pin asserts to when the output pin asserts, provided SENSE is above the threshold.
All devices operate from 1.7 V to 6.5 V and have a typical quiescent current of 6 µA with an open-drain output rated at 18 V. The TPS389x is available in an ultra-small USON package and is fully specified over the temperature range of TJ= –40°C to 125°C.
The TPS3895, TPS3896, TPS3897, and TPS3898 devices (TPS389x) are a family of very small supervisory circuits that monitor voltages greater than 500 mV with a 0.25% (typical) threshold accuracy and offer adjustable delay time using external capacitors. The TPS389x family also has a logic enable pin (ENABLE orENABLE) to power on and off the output. With the TPS3895, for example, when the input voltage pin (SENSE) rises above the threshold, and the ENABLE pin is high, then the output pin (SENSE_OUT) goes high after the capacitor-adjustable delay time. When SENSE falls below the threshold or ENABLE is low, then SENSE_OUT goes low.
For TPS389xA versions, both SENSE and ENABLE have a capacitor-adjustable delay. The output asserts after this capacitor-adjustable delay when both SENSE and ENABLE inputs are good. The TPS389xP devices have a small, 0.2-µs propagation delay from when the enable pin asserts to when the output pin asserts, provided SENSE is above the threshold.
All devices operate from 1.7 V to 6.5 V and have a typical quiescent current of 6 µA with an open-drain output rated at 18 V. The TPS389x is available in an ultra-small USON package and is fully specified over the temperature range of TJ= –40°C to 125°C.