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UC2903DW
+NomenclatureIC SUPERVISOR 4 CHANNEL 18SOIC
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FabricantTexas Instruments
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Pièce fabricant #UC2903DW
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Fiche technique UC2903DW DataSheet
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En stock1
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Spécifications
| Attribut | Valeur |
| Part Status | Obsolete |
| Base Product Number | UC2903 |
| DigiKey Programmable | Not Verified |
| Type | Multi-Voltage Supervisor |
| Voltage - Threshold | Adjustable/Selectable |
| Output | Open Drain or Open Collector |
| Reset | Active Low |
| Reset Timeout | Adjustable/Selectable |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package | 18-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 18-SOIC |
| Packaging | Tube |
| Number of Voltages Monitored | 4 |
Présentation
Description
Key features include a wide input voltage range, programmable charge current, and an external resistor for charging current adjustment. The UC2903DW is typically used in applications such as uninterruptible power supplies (UPS), electric vehicles, and renewable energy systems.
Its compact SOIC-8 package makes it suitable for space-constrained designs. The device operates in various modes, allowing for flexibility in charging profiles depending on the battery's state and requirements. Overall, the UC2903DW is an efficient and reliable solution for managing battery charging and ensuring optimal performance and longevity of the battery system.
Equivalent
1. LM2903 - Dual comparator with similar functionality.
2. LTC2927 - Voltage supervisor with adjustable thresholds.
3. MAX811 - Voltage monitoring and reset IC.
4. TPS3808 - Microprocessor supervisor with dual outputs.
Always verify specific application requirements and datasheets for compatibility.
Features
1. Dual Voltage Monitoring: Monitors both the primary and secondary battery voltages for over-voltage and under-voltage conditions.
2. Adjustable Voltage Levels: Configuration of threshold voltage settings through external resistors for customized monitoring.
3. On-chip Comparators: Integrated comparators for precise voltage detection.
4. Programmable Delay: Adjustable timing for delay before response to voltage changes.
5. Open-Drain Outputs: Provides flexibility in driving external circuitry, such as LEDs or alarms.
6. Low Power Consumption: Designed for low quiescent current, enhancing battery life in portable applications.
7. Temperature Range: Operates across a wide temperature range, making it suitable for various environments.
8. Compact Package: Available in a surface-mount package, ideal for space-constrained designs.
Overall, the UC2903DW is an efficient solution for monitoring and controlling battery voltages in various electronics applications.
Pinout
Here is a brief overview of the pin functions:
1. Pin 1 (IN-): Inverting input of Comparator 1.
2. Pin 2 (IN+): Non-inverting input of Comparator 1.
3. Pin 3 (OUT): Output of Comparator 1.
4. Pin 4 (GND): Ground reference.
5. Pin 5 (IN-): Inverting input of Comparator 2.
6. Pin 6 (IN+): Non-inverting input of Comparator 2.
7. Pin 7 (OUT): Output of Comparator 2.
8. Pin 8 (VCC): Positive supply voltage.
The UC2903DW operates over a wide voltage range and provides features such as hysteresis for improved stability in applications.
Manufacturer
Texas Instruments is particularly recognized for its integrated circuits (ICs), microcontrollers, and analog devices that enable efficient power management, signal processing, and connectivity in electronic systems. The UC2903DW is a voltage regulator IC designed for power management applications, specifically for controlling battery chargers and power supplies.
Overall, Texas Instruments is a prominent player in the electronics industry, focusing on research and development to drive technological advancements and support a wide array of applications across multiple industries.
Application
1. Battery Chargers: It manages charging processes for lead-acid and lithium-ion batteries.
2. Power Supply Circuits: It regulates voltage levels for various electronic devices.
3. Automotive Applications: Used in automotive power management systems to ensure stable voltage levels.
4. Uninterruptible Power Supplies (UPS): It helps maintain power stability during outages.
5. Industrial Equipment: Employed in machinery and automation systems for efficient power management.
Overall, the UC2903DW is essential for systems requiring reliable voltage regulation and monitoring.