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LM74700QDBVTQ1
3.2-V to 65-V, 80-uA IQ automotive ideal diode controller
Brands: Texas Instruments
Mfr.Part #: LM74700QDBVTQ1
Datasheet: LM74700QDBVTQ1 Datasheet (PDF)
Package/Case: SOT-23 (DBV)-6
RoHS Status:
Stock Condition: 4782 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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The LM74700-Q1 is an automotive AEC Q100 qualified ideal diode controller which operates in conjunction with an external N-channel MOSFET as an ideal diode rectifier for low loss reverse polarity protection with a 20-mV forward voltage drop. The wide supply input range of 3.2 V to 65 V allows control of many popular DC bus voltages such as 12-V, 24-V and 48-V automotive battery systems. The 3.2-V input voltage support is particularly well suited for severe cold crank requirements in automotive systems. The device can withstand and protect the loads from negative supply voltages down to –65 V.
The device controls the GATE of the MOSFET to regulate the forward voltage drop at 20 mV. The regulation scheme enables graceful turn off of the MOSFET during a reverse current event and ensures zero DC reverse current flow. Fast response (< 0.75 µs) to Reverse Current Blocking makes the device suitable for systems with output voltage holdup requirements during ISO7637 pulse testing as well as power fail and input micro-short conditions.
The LM74700-Q1 controller provides a charge pump gate drive for an external N-channel MOSFET. The high voltage rating of LM74700-Q1 helps to simplify the system designs for automotive ISO7637 protection. With the enable pin low, the controller is off and draws approximately 1 µA of current.
Features
- AEC-Q100 qualified with the following results
- Device temperature grade 1: –40°C to +125°C ambient operating temperature range
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
- Functional Safety-Capable
- Documentation available to aid functional safety system design
- 3.2-V to 65-V input range (3.9-V start up)
- –65-V reverse voltage rating
- Charge pump for external N-Channel MOSFET
- 20-mV ANODE to CATHODE forward voltage drop regulation
- Enable pin feature
- 1-µA shutdown current (EN=Low)
- 80-µA operating quiescent current (EN=High)
- 2.3-A peak gate turnoff current
- Fast response to reverse current blocking: < 0.75 µs
- Meets automotive ISO7637 transient requirements with a suitable TVS Diode
- Available in 6-pin and 8-pin SOT-23 Package 2.90 mm × 1.60 mm
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Vin (min) (V) | 3.2 | Vin (max) (V) | 65 |
| Number of channels | 1 | Features | Automotive load dump compatibility, Enable, Linear control, Reverse current blocking, Reverse polarity protection |
| Iq (typ) (mA) | 0.08 | Iq (max) (mA) | 0.13 |
| TI functional safety category | Functional Safety-Capable | FET | External single FET |
| IGate source (typ) (µA) | 11000 | IGate sink (typ) (mA) | 2370 |
| IGate pulsed (typ) (A) | 2.3 | Operating temperature range (°C) | -40 to 125 |
| VSense reverse (typ) (mV) | -11 | Design support | EVM |
| Rating | Automotive | Imax (A) | 250 |
| Shutdown current (ISD) (mA) (A) | 0.001 | Device type | Ideal diode controller |
| Product type | Ideal diode controller |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
We provide high quality products, thoughtful service and after sale guarantee
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365 days quality guarantee for all products
