Overview
The LM5050MK-2/NOPB from Texas Instruments is a high-side OR-ing FET controller designed for various industrial and automotive applications. This device operates in conjunction with an external N-Channel MOSFET to function as an ideal diode rectifier, reducing power loss and voltage drops in power distribution networks. It features a wide operating input voltage range from +6V to +75V and can withstand transients up to +100V.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Vin (min) (V) | 6 | Vin (max) (V) | 75 |
| Number of channels | 1 | Features | FET test, Linear control, Reverse current blocking |
| Iq (typ) (mA) | 0.4 | Iq (max) (mA) | 0.72 |
| FET | External single FET | IGate source (typ) (µA) | 32 |
| IGate source (max) (µA) | 45 | IGate sink (typ) (mA) | 2.8 |
| IGate pulsed (typ) (A) | 2.8 | Operating temperature range (°C) | -40 to 125 |
| VSense reverse (typ) (mV) | -41, -28 | Design support | EVM, Reference Design, Simulation Model |
| Rating | Catalog | Imax (A) | 250 |
| VGS (max) (V) | 14.7 | Shutdown current (ISD) (mA) | 0.1 |
| Device type | ORing controller | Package | SOT-23-THIN (DDC)-6 |
Key Features
- Wide Operating Input Voltage Range: +6V to +75V
- +100 Volt Transient Capability
- Charge Pump Gate Driver for External N-Channel MOSFETs
- Fast 50ns Response to Current Reversal
- 2A Peak Gate Turn-off Current
- Minimum VDS Clamp for Faster Turn-off
- MOSFET Diagnostic Test Mode
- Thermal Shutdown Protection
- Low Saturation Voltage: 2.5V
- High Current Handling Capacity: 3A
Applications
- Active OR-ing of Redundant (N+1) Power Supplies
- Automotive and Industrial Power Distribution Systems
- Advanced Overcurrent Detection and Equipment Safeguarding
- Power Distribution System Safety
Q & A
- Q: What is the operating input voltage range of the LM5050MK-2/NOPB?
A: The operating input voltage range is from +6V to +75V.
- Q: What is the transient voltage capability of the LM5050MK-2/NOPB?
A: The device can withstand transients up to +100V.
- Q: What type of MOSFET does the LM5050MK-2/NOPB support?
A: It supports external N-Channel MOSFETs.
- Q: What is the response time to current reversal for the LM5050MK-2/NOPB?
A: The response time is 50ns.
- Q: Does the LM5050MK-2/NOPB have thermal shutdown protection?
A: Yes, it features thermal shutdown protection.
- Q: What is the typical quiescent current (Iq) of the LM5050MK-2/NOPB?
A: The typical quiescent current (Iq) is 0.4 mA.
- Q: What is the maximum gate source current for the LM5050MK-2/NOPB?
A: The maximum gate source current is 45 µA.
- Q: What is the operating temperature range of the LM5050MK-2/NOPB?
A: The operating temperature range is from -40°C to 125°C.
- Q: What package type is the LM5050MK-2/NOPB available in?
A: It is available in SOT-23-THIN (DDC)-6 package.
- Q: Where can I find detailed information and application notes for the LM5050MK-2/NOPB?
A: You can find detailed information and application notes on the Texas Instruments website or through authorized distributors like Ovaga Technologies.
