A4940 View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
'A4940' PDF : 14 Pages View PDF
A4940
Automotive Full Bridge MOSFET Driver
Pin-out Diagram
RESET 1
GND 2
GLB 3
SB 4
GHB 5
CB 6
VREG 7
CA 8
GHA 9
SA 10
GLA 11
VBB 12
PAD
24 FAULT
23 RDEAD
22 AGND
21 VDD
20 AHI
19 ALO
18 BHI
17 BLO
16 GND
15 GND
14 CP1
13 CP2
Terminal List
Number
Name
AGND
22
AHI
20
ALO
19
BHI
BLO
CA
CB
CP1
CP2
FAULT
GHA
GHB
GLA
GLB
GND
PAD
RDEAD
RESET
SA
SB
VBB
VDD
VREG
18
17
8
6
14
13
24
9
5
11
3
2,15,16
–
23
1
10
4
12
21
7
Function
Ground Reference
Control Input A High Side
Control Input A Low Side
Control Input B High Side
Control Input B Low Side
Bootstrap Capacitor A
Bootstrap Capacitor B
Pump Capacitor
Pump Capacitor
Fault Output
High-side Gate Drive A
High-side Gate Drive B
Low-side Gate Drive A
Low-side Gate Drive B
Ground
Exposed pad for thermal dissipation, connect to GND
Dead time setting input
Reset Input
Load Connection A
Load Connection B
Main Supply
Logic Supply
Regulated 13 V
Allegro MicroSystems, Inc.
13
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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