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A3924 Datasheet(PDF) 2 Page - Allegro MicroSystems

Part # A3924
Description  Automotive, Full-Bridge MOSFET Driver
PDF  55 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A3924 Datasheet(HTML) 2 Page - Allegro MicroSystems

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Automotive, Full-Bridge MOSFET Driver
A3924
2
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Selection Guide
Part Number
Packing
Package
A3924KLVTR-T
4000 pieces per reel
9.7 mm × 4.4 mm, 1.2 mm nominal height
38-lead eTSSOP with exposed thermal pad
*Contact Allegro™ for additional packing options.
Table of Contents
Specifications
3
Absolute Maximum Ratings
3
Thermal Characteristics
3
Pinout Diagram and Terminal List Table
4
Functional Block Diagram
5
Electrical Characteristics Table
6
Overcurrent Fault Timing Diagrams
12
VDS Fault Timing Diagrams
13
Logic Truth Tables
14
Functional Description
15
Input and Output Terminal Functions
15
Power Supplies
16
Gate Drives
17
Logic Control Inputs
19
Output Disabled
19
Sleep Mode
20
Current Sense Amplifier
20
Diagnostic Monitors
21
DIAG Diagnostic Output
21
Diagnostic Registers
21
Chip-Level Protection
22
Operational Monitors
22
Power Bridge and Load Faults
24
Fault Action
29
Fault Masks
29
Diagnostic and System Verification
30
On-Line Verification
30
Off-Line Verification
31
Serial Interface
35
Serial Registers Definition
35
Configuration Registers
36
Verification Registers
37
Diagnostic Registers
37
Control Register
37
Status Register
38
Serial Register Reference
39
Config 0, 1
39
Config 2, 3
40
Config 4, 5
41
Verify Command 0, 1
43
Verify Result 0, 1
44
Mask 0, 1
45
Diag 0, 1, 2
46
Control
47
Status
48
Applications Information
49
Power Bridge PWM Control
49
Current Sense Amplifier Configuration
50
Dead Time Selection
50
Bootstrap Capacitor Selection
51
Bootstrap Charging
51
VREG Capacitor Selection
52
Supply Decoupling
52
Braking
52
Input / Output Structures
53
Package Drawing
54



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