| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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560 pcs
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560 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| AEC Qualified | |
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| Automotive Grade | |
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The LM74701-Q1 from Texas Instruments is an automotive-qualified ideal diode controller that works with an external N-channel MOSFET to provide low-loss reverse polarity protection. It supports an input voltage range of 3.2 V to 65 V, making it suitable for 12-V automotive systems and cold crank requirements.
This controller regulates the forward voltage drop across the external MOSFET to a low 20 mV, ensuring minimal power loss. It features a fast response time of less than 0.75 µs to reverse current blocking, crucial for systems requiring output voltage holdup during transient events. The device also includes an integrated VDS clamp, enabling a TVS-less input polarity protection solution.
Key electrical characteristics include a shutdown current of 1 µA (EN = Low) and an operating quiescent current of 80 µA (EN = High). The LM74701-Q1 is AEC-Q100 qualified with temperature grade 1 (-40°C to +125°C ambient operating temperature range), HBM ESD classification level 2, and CDM ESD classification level C4B.
The device is available in an 8-pin SOT-23 package with dimensions of 2.90 mm x 1.60 mm. Its applications include automotive ADAS systems, infotainment systems, USB hubs, and active ORing for redundant power supplies.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.82 | $0.82 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 3.2 V to 65 V, including a 3.9 V startup.
The forward voltage drop is regulated to 20 mV (anode to cathode).
It is available in a SOT-23-8 (TSOT-23-8) surface-mount package.
The operating ambient temperature range is -40°C to +125°C.
Yes, it provides fast reverse current blocking with a response time of less than 0.75 µs.
The operating quiescent current is 80 µA typical, 130 µA maximum.