Overview
The LM5033MM/NOPB is a high-voltage pulse width modulation (PWM) controller produced by Texas Instruments. This device is designed for use in isolated DC/DC power supplies, particularly in industrial and high-voltage applications. It features an internal high-voltage start-up regulator, which simplifies power-up sequences, and a single resistor oscillator setting for easy configuration. The controller also includes precision reference output and adjustable soft start, enabling precise control and customization of power delivery. Additionally, it is equipped with overcurrent protection and thermal shutdown capabilities to ensure safe operation in challenging conditions.
Key Specifications
| Attribute | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LM5033MM/NOPB |
| Package Type | VSSOP-10-0.5mm |
| Input Voltage Range | 15 V to 100 V |
| Output Voltage Range | Up to 90% of input voltage |
| Switching Frequency | Adjustable up to 2 MHz |
| Gate Drivers | 1.5-A peak gate drivers |
| Protection Features | Overcurrent protection, thermal shutdown, cycle-by-cycle current limiting |
| Operating Temperature Range | -40°C to +125°C (TJ) |
| RoHS Status | Compliant |
Key Features
- Synchronous buck and boost controller
- Wide input voltage range of 15 V to 100 V
- Output voltage up to 90% of input voltage
- Adjustable switching frequency up to 2 MHz
- Integrated MOSFET drivers and reverse current protection
- Programmable soft start and thermal shutdown protection
- Direct optocoupler interface
- Internal high-voltage start-up regulator
- Single resistor oscillator setting
Applications
The LM5033MM/NOPB is commonly used in various high-voltage and industrial applications, including:
- Isolated power supplies
- Industrial automation
- Power distribution systems
- Power management systems
- Motor drives
- Telecom equipment
Q & A
- What is the input voltage range of the LM5033MM/NOPB?
The input voltage range of the LM5033MM/NOPB is 15 V to 100 V.
- What type of package does the LM5033MM/NOPB come in?
The LM5033MM/NOPB comes in a VSSOP-10-0.5mm package.
- What are the key protection features of the LM5033MM/NOPB?
The key protection features include overcurrent protection, thermal shutdown, and cycle-by-cycle current limiting.
- What is the maximum switching frequency of the LM5033MM/NOPB?
The switching frequency of the LM5033MM/NOPB is adjustable up to 2 MHz.
- Does the LM5033MM/NOPB support soft start?
Yes, the LM5033MM/NOPB supports programmable soft start.
- What are the typical applications of the LM5033MM/NOPB?
The LM5033MM/NOPB is typically used in isolated power supplies, industrial automation, power distribution, power management systems, motor drives, and telecom equipment.
- Is the LM5033MM/NOPB RoHS compliant?
Yes, the LM5033MM/NOPB is RoHS compliant.
- What is the operating temperature range of the LM5033MM/NOPB?
The operating temperature range of the LM5033MM/NOPB is -40°C to +125°C (TJ).
- Does the LM5033MM/NOPB have integrated gate drivers?
Yes, the LM5033MM/NOPB has 1.5-A peak gate drivers.
- How can I obtain the datasheet for the LM5033MM/NOPB?
The datasheet for the LM5033MM/NOPB can be downloaded from the official Texas Instruments website or from various component distributors such as LCSC, SnapEDA, and JLCPCB.
