Overview
The LM5050MK-1/NOPB is a High Side OR-ing FET Controller produced by Texas Instruments. This component operates in conjunction with an external N-Channel MOSFET to function as an ideal diode rectifier when connected in series with a power source. It is designed to replace diode rectifiers in power distribution networks, thereby reducing power loss and voltage drops. The LM5050-1 controller is available in both standard and AEC-Q100 qualified versions, making it suitable for a wide range of applications, including those requiring functional safety and high reliability.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT-23-THN (DDC), 6 Pins |
| Operating Temperature Range | -40°C to 125°C |
| Package Quantity | Carrier 1,000 (Small T&R) |
| Input Voltage Range | 1 V to 75 V (V_BIAS required for V_IN < 5 V) |
| Transient Capability | 100 V |
| Gate Turnoff Current | 2 A Peak |
| Response Time to Current Reversal | 50 ns |
Key Features
- Charge pump gate drive for an external N-Channel MOSFET
- Fast 50-ns response to current reversal
- 2-A peak gate turnoff current
- Minimum V_DS clamp for faster turnoff
- Wide operating input voltage range: 1 V to 75 V
- 100-V transient capability
- Functional safety capable with documentation available to aid in system design
- Available in both standard and AEC-Q100 qualified versions (LM5050Q0MK-1 and LM5050Q1MK-1)
Applications
The LM5050MK-1/NOPB is suitable for various applications where high-side OR-ing is required, such as in power distribution networks, programmable logic controllers (PLCs), and other systems needing robust protection against overloads, short circuits, voltage surges, and reverse polarities. It is particularly useful in replacing diode rectifiers to reduce power loss and voltage drops.
Q & A
- What is the primary function of the LM5050MK-1/NOPB?
The LM5050MK-1/NOPB operates as a High Side OR-ing FET Controller, providing charge pump gate drive for an external N-Channel MOSFET and fast response to current reversal.
- What is the operating temperature range of the LM5050MK-1/NOPB?
The operating temperature range is -40°C to 125°C.
- What is the input voltage range for the LM5050MK-1/NOPB?
The input voltage range is 1 V to 75 V, with V_BIAS required for V_IN < 5 V.
- What is the transient capability of the LM5050MK-1/NOPB?
The component can withstand transients up to 100 V.
- How quickly does the LM5050MK-1/NOPB respond to current reversal?
The response time to current reversal is 50 ns.
- What is the peak gate turnoff current of the LM5050MK-1/NOPB?
The peak gate turnoff current is 2 A.
- Is the LM5050MK-1/NOPB available in AEC-Q100 qualified versions?
Yes, it is available in AEC-Q100 qualified versions (LM5050Q0MK-1 and LM5050Q1MK-1).
- What type of package does the LM5050MK-1/NOPB come in?
The component comes in a SOT-23-THN (DDC) package with 6 pins.
- What are some common applications for the LM5050MK-1/NOPB?
Common applications include power distribution networks, programmable logic controllers (PLCs), and systems requiring robust protection against various faults.
- Does the LM5050MK-1/NOPB provide functional safety features?
Yes, it is functional safety capable with available documentation to aid in system design.
