Overview
The TPS3510DG4, produced by Texas Instruments, is a power-supply supervisor 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 remote on/off control. It is particularly suited for modern personal computer power supplies that require advanced power management and protection features.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | 4 | - | 15 | V |
| Input Voltage (PGI) | - | - | VDD + 0.3 | V |
| Under-Voltage Threshold (VS33) | 2 | 2.2 | 2.4 | V |
| Under-Voltage Threshold (VS5) | 3.3 | 3.5 | 3.7 | V |
| Over-Voltage Threshold (3.3V, 5V, 12V) | - | - | - | V |
| Power Good Delay (TPS3510) | 200 | 300 | 450 | ms |
| Power Good Delay (TPS3511) | 100 | 150 | 225 | ms |
| Operating Temperature Range | -40 | - | 85 | °C |
| Supply Current (PSON = 5V) | - | - | 1 | mA |
Key Features
- Overvoltage Protection (OVP): Monitors 3.3 V, 5 V, and 12 V rails, latching the fault protection output (FPO) high and power good output (PGO) low upon detection of an overvoltage condition.
- Undervoltage Protection (UVP): Monitors 3.3 V and 5 V rails, latching FPO high and PGO low upon detection of an undervoltage condition.
- Power Good Output (PGO): Provides an open-drain power good signal for the 3.3 V and 5 V supply voltage rails with adjustable delay times.
- Remote On/Off Control (PSON): An active-low signal that controls the main power rails, including 3.3 V, 5 V, and 12 V, with debounce and delay features.
- Fault Protection Output (FPO): An open-drain output that indicates fault conditions, such as overvoltage or undervoltage, and can be connected to a pull-up resistor.
- Noise Deglitching: Includes 73-µs debounce times to filter out noise and ensure reliable operation.
Applications
- Personal Computer Power Supplies: Ideal for modern PC power supplies that require advanced power management and protection features.
- Server and Data Center Power Supplies: Suitable for high-reliability power supplies in server and data center environments.
- Industrial Power Systems: Used in industrial power systems where robust protection against overvoltage and undervoltage is crucial.
- Embedded Systems: Applicable in embedded systems that require reliable power supply monitoring and protection.
Q & A
- What is the primary function of the TPS3510DG4?
The primary function of the TPS3510DG4 is to provide comprehensive power supply supervision, including overvoltage protection, undervoltage protection, power good indication, and remote on/off control.
- What are the monitored voltage rails for overvoltage protection?
The TPS3510DG4 monitors 3.3 V, 5 V, and 12 V voltage rails for overvoltage protection.
- How does the power good output (PGO) work?
The PGO provides an open-drain power good signal that goes high after a specified delay once the monitored voltage rails are within the acceptable range.
- What is the purpose of the remote on/off control (PSON)?
The PSON is an active-low signal that controls the main power rails, allowing for remote turn-on and turn-off of the power supply.
- How does the fault protection output (FPO) indicate faults?
The FPO is an open-drain output that goes high when a fault condition, such as overvoltage or undervoltage, is detected.
- What is the operating temperature range of the TPS3510DG4?
The operating temperature range of the TPS3510DG4 is from -40°C to 85°C.
- What is the supply current when PSON is high?
The supply current when PSON is high is typically 1 mA.
- How does the noise deglitching feature work?
The noise deglitching feature includes 73-µs debounce times to filter out noise and ensure reliable operation.
- What are some common applications of the TPS3510DG4?
The TPS3510DG4 is commonly used in personal computer power supplies, server and data center power supplies, industrial power systems, and embedded systems.
- What are the package options available for the TPS3510DG4?
The TPS3510DG4 is available in SOIC and PDIP packages.
