Overview
The TPS3510D, produced by Texas Instruments, is a 3-channel supervisor designed for switch-mode power supplies. This component is optimized to minimize the number of external components required in personal-computer switching power supply systems. It provides comprehensive protection circuits, a power good indicator, fault protection output, and remote on/off control. The TPS3510D operates over a wide supply voltage range from 4 V to 15 V and is characterized for operation from -40°C to 85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 8 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | 4 to 15 | V |
| Supply Current (Max) | 1 | mA |
| Power Good Delay | 300 ms (TPS3510), 150 ms (TPS3511) | ms |
| Short-Circuit Turnon Protection Delay | 75 ms | ms |
| PSON Control to FPO Turnoff Delay | 2.3 ms | ms |
| PSON Control Debounce | 38 ms | ms |
| Noise Deglitch Time | 73 µs | µs |
Key Features
- Overvoltage Protection and Lockout for 12 V, 5 V, and 3.3 V
- Undervoltage Protection and Lockout for 5 V and 3.3 V
- Fault Protection Output With Open-Drain Output Stage
- Open-Drain Power Good Output Signal for Power Good Input, 3.3 V and 5 V
- Power Good Delay: 300 ms for TPS3510 and 150 ms for TPS3511
- 75-ms Delay for 5-V and 3.3-V Power Supply Short-Circuit Turnon Protection
- 2.3-ms PSON Control to FPO Turnoff Delay and 38-ms PSON Control Debounce
- 73-µs Width Noise Deglitches
- Wide Supply Voltage Range From 4 V to 15 V
Applications
The TPS3510D is primarily used in personal-computer switching power supply systems to provide robust protection and monitoring. It is particularly useful in systems that require remote on/off control and power good indication. This component is also suitable for battery-powered or handheld equipment where undervoltage protection is crucial to prevent malfunctions.
Q & A
- What is the primary function of the TPS3510D?
The TPS3510D is a 3-channel supervisor designed to provide overvoltage, undervoltage, and fault protection for switch-mode power supplies in personal computers.
- What is the operating temperature range of the TPS3510D?
The TPS3510D operates from -40°C to 85°C.
- What are the key protection features of the TPS3510D?
The TPS3510D includes overvoltage protection for 12 V, 5 V, and 3.3 V, undervoltage protection for 5 V and 3.3 V, and fault protection output with an open-drain stage.
- How does the power good feature work in the TPS3510D?
The power good feature monitors the power good input (PGI) and the 3.3 V and 5 V power rails, issuing a power good signal when the output is ready after a specified delay.
- What is the purpose of the PSON control in the TPS3510D?
The PSON (Power Supply On) control is an active-low signal that turns on all main power rails, including 3.3 V and 5 V, and also controls the fault protection output.
- What is the maximum supply current of the TPS3510D?
The maximum supply current of the TPS3510D is 1 mA.
- Is the TPS3510D RoHS compliant?
Yes, the TPS3510D is RoHS compliant.
- What is the package type of the TPS3510D?
The TPS3510D comes in an 8-pin SOIC (D) package.
- What is the noise deglitch time for the TPS3510D?
The noise deglitch time for the TPS3510D is 73 µs.
- Can the TPS3510D be used in battery-powered devices?
Yes, the TPS3510D is suitable for battery-powered or handheld equipment due to its undervoltage protection features.
