Overview
The TSM101ACDT, produced by STMicroelectronics, is a voltage and current controller integrated circuit designed for use in switching power supplies. This IC incorporates a high stability series band gap voltage reference, two ORed operational amplifiers, and a current source. It compares the DC voltage and the current level at the output of the switching power supply to an internal reference, providing feedback through an optocoupler to the PWM controller IC on the primary side. This component is essential for maintaining precise voltage and current regulation in power supply systems.
Key Specifications
| Parameter | Value |
|---|---|
| Reference Voltage (V) | 1.24 V (nominal) |
| Output Current | 10 mA |
| Voltage Precision | 1% |
| Supply Voltage Range | 4.5 to 32 V |
| Operating Temperature Range | -40°C to 80°C |
| Package | SO-8, DIP8, TSSOP8 |
| RoHS Compliance | Ecopack3 |
Key Features
- High stability series band gap voltage reference with 1.24 V output and 1% precision
- Built-in current generator with enable/disable function
- Two operational amplifiers with ORed output and 1 MHz gain bandwidth product
- Available in SO8, DIP8, and TSSOP8 packages
- Wide supply voltage range of 4.5 to 32 V
Applications
The TSM101ACDT is primarily used in switching power supplies to ensure accurate voltage and current regulation. It is suitable for various power supply designs, including DC-DC converters, AC-DC converters, and other applications requiring precise voltage and current monitoring and control.
Q & A
- What is the primary function of the TSM101ACDT?
The primary function of the TSM101ACDT is to compare the DC voltage and current level at the output of a switching power supply to an internal reference and provide feedback through an optocoupler. - What is the reference voltage of the TSM101ACDT?
The reference voltage of the TSM101ACDT is 1.24 V with a precision of 1%. - What is the supply voltage range of the TSM101ACDT?
The supply voltage range of the TSM101ACDT is from 4.5 V to 32 V. - What are the available packages for the TSM101ACDT?
The TSM101ACDT is available in SO8, DIP8, and TSSOP8 packages. - What is the operating temperature range of the TSM101ACDT?
The operating temperature range of the TSM101ACDT is from -40°C to 80°C. - Is the TSM101ACDT RoHS compliant?
Yes, the TSM101ACDT is RoHS compliant with an Ecopack3 rating. - What is the purpose of the built-in current generator in the TSM101ACDT?
The built-in current generator can be used to modify the level of current limitation by offsetting the information coming from the current sensing resistor. - How many operational amplifiers does the TSM101ACDT have?
The TSM101ACDT has two operational amplifiers with ORed output. - What is the gain bandwidth product of the operational amplifiers in the TSM101ACDT?
The gain bandwidth product of the operational amplifiers is 1 MHz. - In what types of power supplies is the TSM101ACDT typically used?
The TSM101ACDT is typically used in switching power supplies, including DC-DC and AC-DC converters.
