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Professional supply LM74700QDBVRQ1 Low IQ Reverse Battery Protection Ideal Diode Controller N-Channel SOT-23-6

Manufacturer
TI
Manufacturer Product Number
LM74700QDBVRQ1
Description

Hot Swap Voltage Controllers 3.2-V to 65-V, 80-uA IQ automotive ideal diode controller 6-SOT-23 -40 to 125

Package Condition
Tape & Reel (TR)
Datasheet

Product Descriptions

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.

Product 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

Product Applications

• Automotive ADAS systems - camera

• Automotive infotainment systems - digital cluster,head unit

• Industrial factory automation - PLC

• Enterprise power supplies

• Active ORing for redundant power

Specifications

Attribute

Attribute value

ANSM-Part#

ANSM-LM74700QDBVRQ1

Category

Integrated Circuits (ICs)

Power Management (PMIC)

OR Controllers, Ideal Diodes

Mfr

Texas Instruments

Series

-

Package

Tape & Reel (TR)

Cut Tape (CT)

Digi-Reel®

Product Status

Active

Type

N+1 ORing Controller

FET Type

N-Channel

Ratio - Input:Output

0.042361111

Internal Switch(s)

No

Delay Time - ON

1.4 µs

Delay Time - OFF

450 ns

Current - Output (Max)

5A

Voltage - Supply

3.2V ~ 65V

Applications

-

Operating Temperature

-40°C ~ 125°C (TJ)

Mounting Type

Surface Mount

Package / Case

SOT-23-6

Grade

Automotive

Supplier Device Package

SOT-23-6

Qualification

AEC-Q100

Base Product Number

LM74700

Actual product photos

LM74700QDBVRQ1

Product Data Book:

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​For more product information, please download the PDF

Payment&Transportation

详情8.1

Official Certificate&Certificate

详情页3.1

Multiple product supply

详情5.1

Company office environment

详情6.1

Warehouse Real Shot

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Standard packaging

详情9

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Professional supply LM74700QDBVRQ1 Low IQ Reverse Battery Protection Ideal Diode Controller N-Channel SOT-23-6

Hot Swap Voltage Controllers 3.2-V to 65-V, 80-uA IQ automotive ideal diode controller 6-SOT-23 -40 to 125

Write your review

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