Texas Instruments

LM74670-Q1 Zero IQ Smart Diode Rectifier Controllers

Texas Instruments offers its LM74670-Q1 controller devices with a 70 µA gate drive

Image of TI's LM74670-Q1 Zero IQ Smart Diode Rectifier ControllersTexas Instruments' 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 an 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 300 Hz.

Features
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: -40°C to 125°C ambient operating temperature range
    • Exceeds HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Peak input AC voltage: 42 V
  • Zero IQ
  • Charge pump gate driver for external N-channel MOSFET
  • Low forward-voltage drop and less power dissipation compared to Schottky diode
  • Capable of handling AC signal up to 300 Hz frequency
Applications
  • AC rectifiers
  • Alternators
  • Power tools
  • Reverse polarity protection

LM74670-Q1 Zero IQ Smart Diode Rectifier Controllers

ImageManufacturer Part NumberDescriptionRatio - Input:OutputInternal Switch(s)Available QuantityPriceView Details
IC SMART DIODE CTLR 8VSSOPLM74670QDGKTQ1IC SMART DIODE CTLR 8VSSOPN:1No412 - Immediate$2.42View Details
IC SMART DIODE CTLR 8VSSOPLM74670QDGKRQ1IC SMART DIODE CTLR 8VSSOPN:1No3911 - Immediate$2.13View Details

Evaluation Module

ImageManufacturer Part NumberDescriptionFunctionUtilized IC / PartPrimary AttributesAvailable QuantityPriceView Details
EVAL BOARD FOR LM74670-Q1LM74670-SQEVMEVAL BOARD FOR LM74670-Q1ORing Controller / Ideal DiodeLM74670-Q1-2 - Immediate$29.85View Details

Associated Parts

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC SMART DIODE CTLR 8VSSOPLM74610QDGKTQ1IC SMART DIODE CTLR 8VSSOP459 - Immediate$2.29View Details
IC SMART DIODE CTLR 8VSSOPLM74610QDGKRQ1IC SMART DIODE CTLR 8VSSOP6542 - Immediate$1.98View Details
EVAL BOARD FOR LM74610-Q1LM74610-DQEVMEVAL BOARD FOR LM74610-Q118 - Immediate$29.85View Details
EVAL BOARD FOR LM74610-Q1LM74610-SQEVMEVAL BOARD FOR LM74610-Q13 - Immediate$25.73View Details
Published: 2016-02-15

Related Videos

Texas Instruments 2024 embedded world interview
Texas Instruments 2024 embedded world interview

Publish Date: 2024-05-24

Design Challenges in Wearable Patient Monitors and Ultrasound Smart Probes
Design Challenges in Wearable Patient Monitors and Ultrasound Smart Probes

Publish Date: 2020-12-21

Related Product Highlight

DRV8244-Q1 Automotive H-Bridge Driver Texas Instruments' DRV8244-Q1 automotive H-Bridge driver is designed for applications that require a half-bridge or H-bridge power stage configuration.
TMP390 Resistor-Programmable Temperature Switch Texas Instruments' dual-channel TMP390 temperature switches enable detection and protection for system thermal events over a wide temperature range.
DRV5057 Digital PWM-Output Hall Effect Sensor Texas Instruments' DRV5057 digital PWM-output Hall effect sensors are ideal for accurate position sensing in a wide range of applications.

Related Articles and Blogs

The Hall Effect and Electrical Components From detecting magnetic fields to propelling rockets, the Hall Effect is a powerhouse in electronics. Explore how this phenomenon is harnessed.
Synchronous Rectifiers Improve Power Supply Efficiency—If Controlled Effectively With the right controller, synchronous or active rectifiers can be used to improve power supply efficiency by minimizing conduction losses.
Release the Kraken: Easily Bring Artificial Intelligence to Any Industrial System Combine Arm Cortex-M microcontrollers with NanoEdge AI Studio from Cartesiam.AI to easily create AI and ML applications for industrial automation and control.