Overview
The TPS3307-33DG4, produced by Texas Instruments, is a member of the TPS3307 family of micropower supply voltage supervisors. These devices are designed primarily for circuit initialization in DSP and processor-based systems that require monitoring of multiple independent supply voltages. The TPS3307-33DG4 specifically monitors supply voltages of 5V, 3.3V, and an adjustable voltage. It is particularly useful in applications where reliable power-on reset and supply voltage monitoring are critical.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 2V to 6V |
| Threshold Voltages | 4.55V (SENSE1), 2.93V (SENSE2), Adjustable (SENSE3) |
| Package Type | 8-SOIC (0.154", 3.90mm Width) |
| Temperature Range | –40°C to +85°C |
| Reset Output | Active High/Active Low |
| Supply Current | Typically 20 µA at VDD = 5V |
Key Features
- Micropower consumption to minimize power usage.
- Monitoring of three independent supply voltages with adjustable SENSE input for custom voltage monitoring.
- Defined RESET output from VDD ≥ 1.1V.
- Available in MSOP-8 and SO-8 packages.
- Operating temperature range of –40°C to +85°C.
- Active High/Active Low reset output options.
Applications
The TPS3307-33DG4 is suitable for various applications, including:
- DSP and processor-based systems requiring multiple supply voltage monitoring.
- Circuit initialization in complex digital systems.
- Power-on reset and supply voltage monitoring in embedded systems.
- Automotive and industrial control systems where reliable power management is crucial.
Q & A
- What is the primary function of the TPS3307-33DG4? The primary function is to monitor multiple independent supply voltages and provide a reliable power-on reset in DSP and processor-based systems.
- What are the threshold voltages for the TPS3307-33DG4? The threshold voltages are 4.55V for SENSE1, 2.93V for SENSE2, and adjustable for SENSE3.
- What is the operating temperature range of the TPS3307-33DG4? The operating temperature range is –40°C to +85°C.
- What package types are available for the TPS3307-33DG4? It is available in 8-SOIC packages.
- How much current does the TPS3307-33DG4 typically consume? It typically consumes 20 µA at VDD = 5V.
- Can the reset output be configured as active high or active low? Yes, the reset output can be configured as either active high or active low.
- What is the minimum supply voltage required for the TPS3307-33DG4 to function? The minimum supply voltage required is 2V.
- Is the TPS3307-33DG4 RoHS compliant? Yes, the TPS3307-33DG4 is RoHS compliant.
- What are some common applications for the TPS3307-33DG4? Common applications include DSP and processor-based systems, circuit initialization, power-on reset in embedded systems, and automotive and industrial control systems.
- How do I adjust the SENSE input voltage? The SENSE input voltage can be adjusted using an external resistor divider according to the application requirements.
