LM74670QDGKTQ1
Active0.48-V TO 42-V, ZERO IQ AUTOMOTIVE IDEAL DIODE RECTIFIER CONTROLLER WITH 70UA GATE DRIVE
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LM74670QDGKTQ1
Active0.48-V TO 42-V, ZERO IQ AUTOMOTIVE IDEAL DIODE RECTIFIER CONTROLLER WITH 70UA GATE DRIVE
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Technical Specifications
Parameters and characteristics for this part
| Specification | LM74670QDGKTQ1 |
|---|---|
| Applications | General Purpose |
| FET Type | N-Channel |
| Grade | Automotive |
| Internal Switch(s) | False |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 8-MSOP, 8-TSSOP |
| Package / Case | 3 mm |
| Package / Case [custom] | 0.118 in |
| Qualification | AEC-Q100 |
| Ratio - Input:Output [custom] | N:1 |
| Type | Bridge Rectifier |
| Voltage - Supply [Max] | 42 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.80 | |
| 10 | $ 2.52 | |||
| 25 | $ 2.38 | |||
| 100 | $ 2.02 | |||
| Digi-Reel® | 1 | $ 2.80 | ||
| 10 | $ 2.52 | |||
| 25 | $ 2.38 | |||
| 100 | $ 2.02 | |||
| Tape & Reel (TR) | 250 | $ 1.90 | ||
| 500 | $ 1.66 | |||
| 1250 | $ 1.38 | |||
| 2500 | $ 1.28 | |||
| 6250 | $ 1.24 | |||
| Texas Instruments | SMALL T&R | 1 | $ 2.11 | |
| 100 | $ 1.74 | |||
| 250 | $ 1.25 | |||
| 1000 | $ 0.94 | |||
Description
General part information
LM74670-Q1 Series
The LM74670-Q1 is a controller device that can be used with an N-Channel MOSFET in full or half bridge rectifier architectures for alternators. It is designed to drive an external MOSFET to emulate an ideal diode. A unique advantage of this scheme is that it is not ground referenced, thus it has zero IQ. The schottky diodes in full or half bridge rectifiers and alternators can be replaced with the LM74670-Q1 solution to avoid forward conduction diode losses and produce more efficient AC-DC converters.
The LM74670-Q1 controller provides a gate drive for external N-Channel MOSFET and a fast response internal comparator to pull-down the MOSFET Gate in the event of reverse polarity. This device can support an AC signal frequency up to 300Hz.
The LM74670-Q1 is a controller device that can be used with an N-Channel MOSFET in full or half bridge rectifier architectures for alternators. It is designed to drive an external MOSFET to emulate an ideal diode. A unique advantage of this scheme is that it is not ground referenced, thus it has zero IQ. The schottky diodes in full or half bridge rectifiers and alternators can be replaced with the LM74670-Q1 solution to avoid forward conduction diode losses and produce more efficient AC-DC converters.
Documents
Technical documentation and resources