Overview
The TSM101AIDT integrated circuit, produced by STMicroelectronics, is a versatile voltage and current controller designed for use in various power supply applications. It incorporates a high stability series band gap voltage reference, two ORed operational amplifiers, and a built-in current source. This IC is particularly useful in switching power supplies, where it compares the DC voltage and current level at the output to an internal reference and provides feedback through an optocoupler to the PWM controller IC in the primary side.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage | 1.24 | V |
| Output Current (Reference Voltage) | 10 | mA |
| Precision (Reference Voltage) | 1% | |
| Supply Voltage Range | 4.5 to 32 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Package Types | SO8, DIP8, TSSOP8 | |
| Gain Bandwidth Product (Operational Amplifiers) | 1 MHz | |
| Current Source Output | 1.4 mA | |
| Enable/Disable Function (Current Source) | Yes |
Key Features
- High stability series band gap voltage reference with 1.24 V output and 10 mA current capability, and 1% precision
- Built-in current generator with enable/disable function, providing 1.4 mA output current
- Two operational amplifiers with ORed output and a gain bandwidth product of 1 MHz
- Available in SO8, DIP8, and TSSOP8 packages
- Wide supply voltage range from 4.5 to 32 V
- Current source can be used to modify the level of current limitation by offsetting the information from the current sensing resistor
Applications
The TSM101AIDT is designed for use in various power supply applications, including:
- Battery chargers: It can be used to charge different types of batteries with precise voltage and current regulation
- Switching power supplies: It provides feedback through an optocoupler to the PWM controller IC in the primary side, ensuring precise voltage and current control
- Power management systems: It can be integrated into systems requiring high stability voltage references and current control
Q & A
- What is the primary function of the TSM101AIDT IC?
The primary function of the TSM101AIDT IC is to control and regulate the voltage and current in switching power supplies and battery chargers.
- What is the reference voltage provided by the TSM101AIDT?
The reference voltage provided by the TSM101AIDT is 1.24 V with a precision of 1%.
- What is the supply voltage range for the TSM101AIDT?
The supply voltage range for the TSM101AIDT is from 4.5 to 32 V.
- What types of packages are available for the TSM101AIDT?
The TSM101AIDT is available in SO8, DIP8, and TSSOP8 packages.
- How does the TSM101AIDT modify the current limitation?
The TSM101AIDT can modify the current limitation by using the built-in current source to offset the information coming from the current sensing resistor.
- What is the gain bandwidth product of the operational amplifiers in the TSM101AIDT?
The gain bandwidth product of the operational amplifiers in the TSM101AIDT is 1 MHz.
- Can the TSM101AIDT be used in battery charging applications?
Yes, the TSM101AIDT can be used in battery charging applications to provide precise voltage and current regulation.
- How does the TSM101AIDT provide feedback in switching power supplies?
The TSM101AIDT provides feedback through an optocoupler to the PWM controller IC in the primary side of the switching power supply.
- What is the operating temperature range for the TSM101AIDT?
The operating temperature range for the TSM101AIDT is from -40°C to 125°C.
- Is the current source in the TSM101AIDT enable/disable capable?
Yes, the current source in the TSM101AIDT has an enable/disable function.
