Overview
The TPS3510DRG4, produced by Texas Instruments, is a power-supply supervisor integrated circuit designed to minimize external components in personal-computer switching power supply systems. This device provides comprehensive protection circuits, power good indicators, fault protection outputs, and PSON (Power Supply On) control. It is particularly useful in ensuring the reliability and safety of power supply systems by monitoring and protecting against overvoltage, undervoltage, and short-circuit conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | 4 | - | 15 | V |
| Input Voltage (PGI) | - | - | VDD + 0.3 | V |
| Under-Voltage Threshold (VS33) | 2.0 | 2.2 | 2.4 | V |
| Under-Voltage Threshold (VS5) | 3.3 | 3.5 | 3.7 | V |
| Over-Voltage Threshold (VS33, VS5, VDD) | - | - | - | V (dependent on specific rail) |
| Power Good Delay (TPS3510) | 200 | 300 | 450 | ms |
| Power Good Delay (TPS3511) | 100 | 150 | 225 | ms |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Type | - | - | SOIC D (8 pins) | - |
Key Features
- Overvoltage Protection (OVP): Monitors 3.3 V, 5 V, and 12 V rails to protect against overvoltage conditions.
- Undervoltage Protection (UVP): Monitors 3.3 V and 5 V rails to protect against undervoltage conditions.
- Power Good Output (PGO): Provides an open-drain power good signal indicating the status of the power supply.
- Fault Protection Output (FPO): Latches high during fault conditions such as overvoltage or undervoltage.
- PSON Control: Supports remote on/off function for the power supply with a 75-ms delay after PSON is set low.
- Short-Circuit Protection: Includes a 75-ms delay for 5-V and 3.3-V power supply short-circuit turn-on protection.
- Noise Deglitching: Features 73-µs noise deglitching to ensure reliable operation.
- Wide Supply Voltage Range: Operates from 4 V to 15 V.
Applications
- Personal Computer Power Supplies: Ideal for monitoring and protecting the power supply in personal computers.
- Server and Data Center Power Supplies: Useful in ensuring the reliability of power supplies in server and data center environments.
- Industrial Power Systems: Suitable for industrial power systems that require robust protection against voltage anomalies.
- Embedded Systems: Can be used in various embedded systems where power supply monitoring is critical.
Q & A
- What is the primary function of the TPS3510DRG4?
The primary function of the TPS3510DRG4 is to provide overvoltage, undervoltage, and fault protection for power supply systems, along with power good indicators and remote on/off control.
- What are the monitored voltage rails for overvoltage protection?
The TPS3510DRG4 monitors 3.3 V, 5 V, and 12 V rails for overvoltage protection.
- What is the purpose of the Power Good Output (PGO) signal?
The Power Good Output (PGO) signal indicates whether the power supply output is within the specified voltage range, going high when the output is ready and low during fault conditions.
- How does the PSON control function work?
The PSON control is an active-low signal that turns on all main power rails. It has a 75-ms delay after being set low to prevent turn-on failures.
- What is the significance of the Fault Protection Output (FPO) pin?
The Fault Protection Output (FPO) pin goes high during fault conditions such as overvoltage or undervoltage, and it remains latched until the PSON signal is toggled or VDD is removed.
- What is the operating temperature range of the TPS3510DRG4?
The TPS3510DRG4 operates from -40°C to 85°C.
- What package types are available for the TPS3510DRG4?
The TPS3510DRG4 is available in SOIC D (8 pins) and PDIP (8 pins) packages.
- Is the TPS3510DRG4 recommended for new designs?
No, the TPS3510DRG4 is not recommended for new designs as it is marked as NRND (Not Recommended for New Designs) by Texas Instruments.
- What is the purpose of the noise deglitching feature?
The noise deglitching feature, with a 73-µs duration, ensures that the device ignores transient noise and only responds to sustained voltage anomalies.
- Can the TPS3510DRG4 be used in industrial power systems?
