Overview
The Texas Instruments LM74610QDGKTQ1 is a Zero IQ Reverse Polarity Protection Smart Diode Controller designed for use in various power management applications. This device is part of Texas Instruments' automotive-grade components, qualified to AEC-Q100 standards, and is suitable for harsh environmental conditions. The LM74610QDGKTQ1 works in conjunction with an external N-Channel MOSFET to emulate an ideal diode rectifier, significantly reducing power losses associated with traditional diode or PFET solutions.
Key Specifications
| Parameter | Value |
|---|---|
| Brand | Texas Instruments |
| Regulator Function | Diode Controller |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Pin Count | 8 |
| Package Type | VSSOP |
| Dimensions | 3.1 x 3.1 x 0.95 mm |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | +125 °C |
| Maximum Reverse Voltage | 45 V |
| Response Time to Reverse Polarity | 2 µs |
Key Features
- AEC-Q100 qualified for automotive applications, exceeding HBM ESD Classification Level 2 and Device CDM ESD Classification Level C4B.
- Zero IQ (Quiescent Current) operation, reducing power dissipation.
- Fast 2-µs response to reverse polarity conditions, protecting power sources and loads.
- Internal charge pump for gate drive of external N-Channel MOSFET.
- No positive voltage limitation to the anode terminal.
- Low reverse leakage current (less than 110 µA at 13.5 V reverse voltage).
- Meets CISPR25 EMI specifications and automotive ISO7637 transient requirements with a suitable TVS diode.
- No peak current limit.
Applications
- Advanced Driver Assistance Systems (ADAS)
- Infotainment Systems
- Power Tools (Industrial)
- Transmission Control Unit (TCU)
- Battery OR-ing Applications
Q & A
- What is the primary function of the LM74610QDGKTQ1?
The LM74610QDGKTQ1 is a Zero IQ Reverse Polarity Protection Smart Diode Controller that works with an external N-Channel MOSFET to emulate an ideal diode rectifier. - What are the operating temperature ranges for the LM74610QDGKTQ1?
The device operates from -40 °C to +125 °C. - What is the maximum reverse voltage the LM74610QDGKTQ1 can handle?
The maximum reverse voltage is 45 V. - How quickly does the LM74610QDGKTQ1 respond to reverse polarity conditions?
The device responds within 2 µs to reverse polarity conditions. - What type of ESD protection does the LM74610QDGKTQ1 offer?
The device exceeds HBM ESD Classification Level 2 and meets Device CDM ESD Classification Level C4B. - What are some common applications for the LM74610QDGKTQ1?
Common applications include ADAS, infotainment systems, power tools, transmission control units, and battery OR-ing applications. - Does the LM74610QDGKTQ1 have any peak current limitations?
No, the LM74610QDGKTQ1 does not have any peak current limitations. - How does the LM74610QDGKTQ1 reduce power losses compared to traditional diodes or PFETs?
The device reduces power losses by using an external N-Channel MOSFET with a lower RDSON, minimizing the forward voltage drop and associated power dissipation. - What type of package does the LM74610QDGKTQ1 come in?
The LM74610QDGKTQ1 comes in an 8-pin VSSOP package. - Is the LM74610QDGKTQ1 compliant with automotive EMI standards?
Yes, it meets CISPR25 EMI specifications and automotive ISO7637 transient requirements with a suitable TVS diode.
