a4940 Allegro MicroSystems, Inc., a4940 Datasheet - Page 13

• Manufacturer Part Number: a4940
• Description: Automotive Full Bridge Mosfet Driver
• Manufacturer: Allegro MicroSystems, Inc.

A4940
Terminal List
Number
RDEAD
RESET
AGND
FAULT
VREG
GHB
GND
ALO
BLO
GHA
GLB
PAD
VBB
VDD
CP1
CP2
GLA
AHI
BHI
CB
CA
SA
SB
2,15,16
Name
22
20
19
18
17
14
13
24
11
23
10
12
21
8
6
9
5
3
–
1
4
7
Automotive Full Bridge MOSFET Driver
RESET
VREG
GND
GHB
GHA
GLB
VBB
GLA
CB
SB
CA
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
Pin-out Diagram
SA
10
11
12
1
2
3
4
5
6
7
8
9
PAD
24
23
22
21
20
19
18
17
16
15
14
13
Function
FAULT
RDEAD
AGND
VDD
AHI
ALO
BHI
BLO
GND
GND
CP1
CP2
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
13