Texas Instruments LM74810MDRRR
- Part Number:
- LM74810MDRRR
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6403796-LM74810MDRRR
- Description:
- 3-V to 65-V back-to-back NFET ideal diode controller with high gate drive, -55°C to 125°C
- Datasheet:
- lm7481
- Vin (min) (V)3
- Vin (max) (V)65
- Number of channels1
- FeaturesAutomotive load dump compatibility
- Iq (typ) (mA)0.428
- Iq (max) (mA)0.5
- FETExternal back-to-back FET
- IGate source (typ) (μA)60000
- IGate sink (typ) (mA)1500
- IGate pulsed (typ) (A)2.6
- Operating temperature range (°C)-55 to 125
- VSense reverse (typ) (mV)-4.5
- Design supportEVM
- RatingCatalog
- Imax (A)350
- VGS (max) (V)15
- Shutdown current (ISD) (mA) (A)0.003
- Device typeIdeal diode controller
- Product typeIdeal diode controller
The LM74810 ideal diode controller drives and controls external back to back N-channel MOSFETs to emulate an ideal diode rectifier with power path ON/OFF control and overvoltage protection. The wide input supply of 3V to 65V allows protection and control of 12-V and 24-V input powered systems. The device can withstand and protect the loads from negative supply voltages down to –65-V. An integrated ideal diode controller (DGATE) drives the first MOSFET to replace a Schottky diode for reverse input protection and output voltage holdup. With a second MOSFET in the power path the device allows load disconnect (ON/OFF control) and overvoltage protection using HGATE control. The device features an adjustable overvoltage cut-off protection feature. LM74810 employs reverse current blocking using linear regulation and comparator scheme. With common drain configuration of the power MOSFETs, the mid-point can be utilized for OR-ing designs using another ideal diode. The LM74810 has a maximum voltage rating of 65V. The loads can be protected from extended overvoltage transients like 200-V unsuppressed load dumps in 24-V battery systems by configuring the device with external MOSFETs in common source topology.
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