SNOSDB8A
June 2021 – December 2021
LM74701-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics
6.7
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Input Voltage
8.3.2
Charge Pump
8.3.3
Gate Driver
8.3.4
Enable
8.3.5
Battery Voltage Monitoring (SW)
8.4
Device Functional Modes
8.4.1
Shutdown Mode
8.4.2
Conduction Mode
8.4.2.1
Regulated Conduction Mode
8.4.2.2
Full Conduction Mode
8.4.2.3
VDS Clamp Mode
8.4.3
Reverse Current Protection Mode
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Design Considerations
9.2.2.2
MOSFET Selection
9.2.2.3
Charge Pump VCAP (CVCAP) and Input Capacitance (CIN)
9.2.2.4
Output Capacitance (COUT)
9.2.3
Application Curves
9.3
What to Do and What Not to Do
9.4
OR-ing Application Configuration
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Support Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DDF|8
MPDS569D
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snosdb8a_oa
snosdb8a_pm
1
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
3.2-V to 65-V input range (3.9-V startup)
–33-V reverse voltage rating
Charge pump for external N-Channel MOSFET
20 mV ANODE to CATHODE forward voltage drop regulation
1-µA shutdown current (EN = Low)
80-µA operating quiescent current (EN = High)
2-A peak gate turn-off current
Fast response to reverse current blocking:
< 0.75 µs
Integrated battery voltage monitoring switch (SW)
Meets automotive ISO7637 transient requirements without additional input TVS diode (
TVS less
)
8-Pin SOT-23 package 2.90 mm × 1.60 mm