Texas Instruments LM74610-Q1 Smart Diode Controller
Texas Instruments LM74610-Q1 Smart Diode Controller is a controller device that can be used with an N-Channel MOSFET in a reverse polarity protection circuitry. It is designed to drive an external MOSFET to emulate an ideal diode rectifier when connected in series with a power source. A unique advantage of this scheme is that it is not referenced to ground and thus has zero Iq. The LM74610-Q1 controller provides a gate drive for an external N-Channel MOSFET. It also provides a fast response internal comparator to discharge the MOSFET Gate in the event of reverse polarity. This fast pull-down feature limits the amount and duration of reverse current flow if the opposite polarity is sensed. The device design meets CISPR25 Class 5 EMI specifications and automotive ISO7637 transient requirements with a suitable TVS diode.
Features
- Qualified for automotive applications
- AEC-Q100 Qualified with the following results
- Exceeds HBM ESD classification level 2
- Device CDM ESD classification level C4B
- Maximum reverse voltage of 45V
- No positive voltage limitation to the anode terminal
- Charge pump gate driver for external N-channel MOSFET
- Lower Power dissipation than Schottky diode/PFET solutions
- Low reverse leakage current
- Zero Iq
- Fast 2µs response to reverse polarity
- -40°C to 125°C Operating ambient temperature
- Can be used in OR-ing applications
- Meets CISPR25 EMI specification
- Meets automotive ISO7637 transient requirements with a suitable TVS diode
Applications
- ADAS
- Infotainment Systems
- Power Tools (Industrial)
- Transmission Control Unit (TCU)
- Battery OR-ing Applications
Evaluation Modules
Texas Instruments LM74610-SQEVM Evaluation Module (EVM)
Demonstrates reverse polarity protection of LM74610 in a diode OR-ing configuration.
Texas Instruments LM74610-DQEVM Evaluation Module (EVM)
Demonstrates reverse polarity protection of LM74610 in a diode OR-ing configuration.
Texas Instruments DRV8243H-Q1EVM Driver Evaluation Module (EVM)
The evaluation module is designed to help evaluate the DRV8243H-Q1, an automotive H-bridge driver.
Texas Instruments DRV8243S-Q1EVM Driver Evaluation Module (EVM)
The evaluation module is designed to help evaluate the DRV8243S-Q1, an automotive H-bridge driver.
Functional Block Diagram
Inilathala: 2015-12-01
| Na-update: 2023-06-07