Overview
The LM5025AMTCX/NOPB is a functional variant of the LM5025 active clamp PWM controller produced by Texas Instruments. This device is designed to implement power converters using the Active Clamp / Reset technique, which allows for higher efficiencies and greater power densities compared to conventional methods. The LM5025AMTCX/NOPB features increased current limit thresholds for CS1 and CS2, a disabled internal CS2 filter discharge device, and continuous operation of the internal VCC and VREF regulators even when the line UVLO pin is below threshold. It is optimized for high-speed operation with an oscillator frequency range up to 1 MHz and total PWM and current sense propagation delays less than 100 ns.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LM5025AMTCX/NOPB |
| Package | TSSOP-16 |
| Input Voltage Range | 4.5 V to 50 V |
| Output Voltage Regulation | ±2% |
| Maximum Output Current | 1.5 A |
| Switching Frequency Range | 100 kHz to 1 MHz |
| Output Current (Driver) | 3 A |
| Output Voltage (Driver) | 8 V to 15 V |
| Operating Temperature Range | -40°C to 125°C |
| Rohs Status | Lead Free / RoHS Compliant |
Key Features
- Active Clamp / Reset technique for higher efficiency and power density
- Increased current limit thresholds for CS1 and CS2 (0.5 V)
- Disabled internal CS2 filter discharge device
- Continuous operation of internal VCC and VREF regulators during line UVLO
- High-speed operation with oscillator frequency up to 1 MHz
- Total PWM and current sense propagation delays less than 100 ns
- High-voltage start-up regulator (13 V to 90 V input range)
- Line undervoltage lockout (UVLO), soft start, and thermal shutdown
- Precision reference and oscillator UP and DOWN sync capability
- Dead time control, frequency control, and ramp functions
- Max duty cycle: 80%
- Integrated power switch and high-performance PWM control
- Excellent transient response and line regulation
Applications
- Switching Power Supplies
- DC-DC Converters
- Battery Chargers
- LED Drivers
- Power Management for Portable Devices
- Industrial Automation Systems
- Telecommunication Equipment
- Consumer Electronics
- Network Technology
- Automation Technology
- Precision Measuring Instruments
- Flaw Detection Equipment
- Industrial Robots
- Industrial Controllers
- Die Casting Equipment
Q & A
- What is the maximum input voltage for the LM5025AMTCX/NOPB?
The device can handle input voltages up to 50 V.
- Does the LM5025AMTCX/NOPB have built-in protections?
- What is the typical switching frequency of this IC?
- Is a soft-start function included?
- Can I use this IC for battery charging applications?
- What is the operating temperature range of the LM5025AMTCX/NOPB?
- What is the maximum duty cycle of the LM5025AMTCX/NOPB?
- Does the LM5025AMTCX/NOPB support oscillator synchronization?
- What type of package does the LM5025AMTCX/NOPB come in?
- Is the LM5025AMTCX/NOPB RoHS compliant?
