Overview
The TPS3307-33DGN is a micropower supply voltage supervisor integrated circuit (IC) manufactured by Texas Instruments. This component is part of the TPS3307 family, designed primarily for circuit initialization in DSP and processor-based systems that require multiple supply voltages. The TPS3307-33DGN is specifically configured to monitor three independent supply voltages: 5V, 3.3V, and an adjustable voltage greater than 1.25V.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TPS3307-33DGN |
| Package Type | 8-MSOP (0.118", 3.00mm Width) Exposed Pad |
| Supply Voltage Range | 2V to 6V |
| Nominal Supervised Voltages | 5V, 3.3V, Adjustable (>1.25V) |
| Threshold Voltages (Typ) | 4.55V, 2.93V, 1.25V† |
| Reset Type | Active High/Active Low |
| Power-On Reset Delay | 200ms (typ) |
| Maximum Supply Current | 40µA |
| Operating Temperature Range | -40°C to +85°C |
| RoHS Compliance | Yes |
Key Features
- Triple supervisory circuits for monitoring three independent supply voltages.
- Adjustable SENSE input allows monitoring of any supply voltage greater than 1.25V.
- Power-on reset generator with a fixed delay time of 200ms, no external capacitor needed.
- Temperature-compensated voltage reference.
- Maximum supply current of 40µA.
- Available in MSOP-8 and SO-8 packages.
- Defined RESET output from VDD ≥ 1.1V.
Applications
- DSP and processor-based systems requiring multiple supply voltages.
- Industrial equipment.
- Programmable controls.
- Automotive systems.
- Portable/battery-powered equipment.
- Intelligent instruments.
- Wireless communication systems.
- Notebook/desktop computers.
Q & A
- What is the primary function of the TPS3307-33DGN?
The TPS3307-33DGN is a micropower supply voltage supervisor designed to monitor three independent supply voltages in DSP and processor-based systems.
- What are the nominal supervised voltages for the TPS3307-33DGN?
The nominal supervised voltages are 5V, 3.3V, and an adjustable voltage greater than 1.25V.
- What is the supply voltage range for the TPS3307-33DGN?
The supply voltage range is from 2V to 6V.
- What is the maximum supply current of the TPS3307-33DGN?
The maximum supply current is 40µA.
- What is the operating temperature range for the TPS3307-33DGN?
The operating temperature range is -40°C to +85°C.
- Does the TPS3307-33DGN require an external capacitor for the power-on reset?
No, the TPS3307-33DGN does not require an external capacitor for the power-on reset, which has a fixed delay time of 200ms.
- What types of packages are available for the TPS3307-33DGN?
The TPS3307-33DGN is available in 8-MSOP (0.118", 3.00mm Width) Exposed Pad packages.
- Is the TPS3307-33DGN RoHS compliant?
Yes, the TPS3307-33DGN is RoHS compliant.
- What are some typical applications for the TPS3307-33DGN?
Typical applications include industrial equipment, programmable controls, automotive systems, portable/battery-powered equipment, intelligent instruments, wireless communication systems, and notebook/desktop computers.
- How does the adjustable SENSE input work?
The adjustable SENSE input allows the monitoring of any supply voltage greater than 1.25V by using an external resistor divider to adjust the sense voltage according to application requirements.
