A3941 Allegro MicroSystems, Inc., A3941 Datasheet - Page 4

• Manufacturer Part Number: A3941
• Description: Automotive Full Bridge MOSFET Driver
• Manufacturer: Allegro MicroSystems, Inc.

A3941
Continued on the next page…
ELECTRICAL CHARACTERISTICS valid at T
Supply and Reference
Load Supply Voltage Functional
Operating Range
Load Supply Quiescent Current
VREG Output Voltage
V5 Output Voltage
V5 Line Regulation
V5 Load Regulation
V5 Short-Circuit Current
Bootstrap Diode Forward Voltage
Bootstrap Diode Resistance
Bootstrap Diode Current Limit
Top-off Charge Pump Current Limit
High-Side Gate Drive Static Load Resistance
Gate Output Drive
Turn-On Time
Turn-Off Time
Pullup On Resistance
Pulldown On Resistance
GHx Output Voltage
GLx Output Voltage
Turn-Off Propagation Delay
Turn-On Propagation Delay
Propagation Delay Matching, Phase-to-Phase
Propagation Delay Matching, On-to-Off
Dead Time
2
Characteristics
1
2
2
R
R
Symbol
V
V
I
I
V
V
DS(on)UP
DS(on)DN
DBOOT
TOCPM
R
t
V
V
V
t
t
∆t
I
∆t
I
DEAD
V
5(load)
fBOOT
P(on)
5(line)
P(off)
BBQ
5(out)
I
BBS
REG
GHX
r
GSH
GLX
Automotive Full Bridge MOSFET Driver
5M
t
t
BB
D
OO
PP
r
f
J
= –40°C to 150°C, V
RESET = high, outputs = low, V
RESET = low, Sleep mode, V
V
7.5 V < V
6 V < V
5.5 V < V
No load
I
I
V
I
I
r
C
C
T
T
T
T
Bootstrap capacitor fully charged
Input change to unloaded gate output
change
Input change to unloaded gate output
change
Measured between corresponding
transition points on both phases
Measured across one phase
R
R
R
RDEAD tied to V5
5
5
D
D
D(100mA)
(V
J
J
J
J
BB
BB
LOAD
LOAD
DEAD
DEAD
DEAD
= –2 mA
= 0 to –2 mA
= 10 mA
= 100 mA
fBOOT(150mA)
= 25°C, I
= 150°C, I
= 25°C, I
= 150°C, I
> 9 V, I
= 40 V, V
= 1 nF, 20% to 80%
= 1 nF, 80% to 20%
= 3 kΩ
= 30 kΩ
= 240 kΩ
BB
=
BB
BB
≤ 7.5 V, I
REG
GHx
GLx
Test Conditions
≤ 9 V, I
≤ 6 V, I
GHx
GLx
5
= 0 V
– V
= 150 mA
= –150 mA
= 0 to 10 mA
= 150 mA
= –150 mA
fBOOT(50mA)
REG
REG
REG
BB
= 7 to 50 V, unless noted otherwise
= 0 to 7 mA
= 0 to 7 mA
< 5.5 mA
BB
) / 100 mA
BB
= 12 V
= 12 V
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
2×V
Min.
V
– 2.5
– 0.2
– 0.2
12.5
12.5
250
250
815
V
5.5
8.5
4.5
0.4
1.5
10
60
60
REG
–
–
–
–
–
6
–
–
–
6
2
3
–
–
–
–
–
Cx
BB
Typ.
500
400
180
960
9.5
0.7
2.2
4.5
3.5
10
13
13
15
50
28
10
35
20
13
90
90
10
10
–
–
–
5
–
8
3
–
–
6
Max.
13.75
13.75
1110
100
750
150
150
5.5
1.0
2.8
50
14
10
40
30
20
12
16
–
–
–
–
–
–
–
4
6
–
–
–
–
–
–
Units
mA
mV
mV
mA
mA
kΩ
μA
μA
ns
ns
ns
ns
ns
ns
ns
ns
μs
μs
V
V
V
V
V
V
V
V
Ω
Ω
Ω
Ω
Ω
V
V
4