Texas Instruments LM74800MDRRR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 12-WFDFN Exposed Pad |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount, Wettable Flank |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Current - Supply | 413 µA |
| Type | N+1 ORing Controller |
| Applications | General Purpose |
| Supplier Device Package | 12-WSON (3x3) |
| FET Type | N-Channel |
| Voltage - Supply | 3V ~ 65V |
| Internal Switch(s) | No |
| Current - Output (Max) | 2.6A |
| Ratio - Input:Output | 1:1 |
| Delay Time - OFF | 500 ns |
| Delay Time - ON | 2.6 µs |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | LM74800 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
LM74800MDRRR OR Controller N+1 ORing Controller N-Channel 1:1 12-WSON (3x3)
The LM74800MDRRR is an advanced ideal diode controller developed by Texas Instruments, designed to replace traditional power diodes in high-efficiency power supply and protection circuits. This device employs a proprietary predictive gate drive architecture to control external N-channel MOSFETs, significantly reducing power losses compared to conventional Schottky diodes. By enabling near-zero forward voltage drop, the LM74800MDRRR improves system efficiency, particularly in OR-ing applications, reverse polarity protection, and high-current power paths where traditional diodes would incur substantial conduction losses.
Featuring ultra-fast dynamic response, the LM74800MDRRR ensures rapid turn-on and turn-off of the external MOSFET, providing effective protection against reverse current flow, inrush currents, and load transients. The device integrates advanced fault detection and protection mechanisms, including overcurrent, overtemperature, and undervoltage lockout (UVLO), ensuring robust operation in harsh environments. Its wide operating voltage range (4.5V to 65V) makes it suitable for a broad range of applications, from automotive and industrial power systems to telecom and data center power supplies.
The LM74800MDRRR is housed in a compact 8-pin VSON package (DRR), which minimizes board footprint while providing excellent thermal performance. Its low quiescent current (typically 75µA) ensures minimal power consumption in standby or low-load conditions, making it ideal for battery-powered and energy-efficient systems. The device also supports bidirectional current blocking, preventing reverse current flow in both directions, which is critical for unidirectional power path applications such as battery charging and backup power systems.
Alternative Models:
● LM74801MDRRR: Similar ideal diode controller but with enhanced fault tolerance, supporting higher current applications and providing additional protection features.
● LM5050-1MDR: High-voltage ideal diode controller (up to 100V) optimized for automotive and industrial power systems requiring wider voltage ranges.
● TPS2419DRVR: Load switch with integrated ideal diode functionality, combining power switching and protection in a single device for simplified designs.
