A3931 Allegro MicroSystems, Inc., A3931 Datasheet - Page 4

• Manufacturer Part Number: A3931
• Description: Automotive 3-Phase BLDC Controller and MOSFET Driver
• Manufacturer: Allegro MicroSystems, Inc.

A3930
A3931
Subject to Change Without Notice
ELECTRICAL CHARACTERISTICS
Supply and Reference
VBB Functional Operating Range
VBB Quiescent Current
V5 Quiescent Current
VREG Output Voltage
Bootstrap Diode Forward Voltage
Bootstrap Diode Resistance
Bootstrap Diode Current Limit
Top-off Charge Pump Current Limit
Cx Top-off Charge Pump Source Current
V5 Output Voltage
V
V5BD Base Drive Capability for QV5
Gate Output Drive
Turn-On Rise Time
Turn-Off Fall Time
Pull-Up On Resistance
Pull-Down On Resistance
Short-Circuit Current – Source
Short-Circuit Current – Sink
GHx Output Voltage
GLx Output Voltage
Turn-Off Propagation Delay
Dead Time (turn-off to turn-on delay)
Preliminary Data Sheet
BE
Continued on the next page...
of External Transistor QV5
April 6, 2006
Characteristics
and
2
6
2
at T
J
R
R
= –40°C to 150°C, V
I
Symbol
SC(source)
V
I
V
I
I
DS(on)UP
DS(on)DN
SC(sink)
V
DBOOT
TOCPM
t
V
V
t
I
I
I
BEEXT
I
DEAD
V
fBOOT
p(off)
BBQ
BBS
V5Q
I
5BD
V
REG
r
GHx
GLx
Cx
t
t
BB
D
r
f
5
Function correct, parameters not
guaranteed
RESET = High, outputs = Low
RESET = Low, sleep mode
RESET = High, outputs = Low
V
6 V < V
I
5.5 V < V
I
I
r
V
C
C
T
T
T
T
T
T
t
Bootstrap capacitor fully charged
From input change to unloaded gate
output change
R
R
R
RDEAD = tied to V5
w
REG
D
D
D(100 mA)
Cx
J
J
J
J
J
J
BB
LOAD
LOAD
DEAD
DEAD
DEAD
Automotive 3-Phase BLDC Controller
= 10 mA
= 100 mA
< 10 μs
= 25°C, I
= 150°C, I
= 25°C, I
= 150°C, I
= 25°C
= 25°C
-V
> 7.5 V, I
= 0 to 15 mA
Sx
= 3300 pF, 20% to 80% points
= 3300 pF, 80% to 20% points
= 5 kΩ
= 50 kΩ
= 400 kΩ
BB
= 8 V, V
BB
= (V
BB
< 7.5 V
= 7 to 45 V, unless otherwise noted
V
Test Conditions
GHx
GLx
< 6 V, I
fBOOT(50 mA)
fBOOT(150 mA)
GHx
GLx
REG
BB
= 150 mA
= –150 mA
= 150 mA
= –150 mA
= 0 to 15 mA
= 14 V, GHx = High
REG
< 10 mA
) / 100 mA
–
and MOSFET Driver
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
V
2 × V
V
Cx
Min.
12.5
–2.5
4.75
250
REG
815
5.5
0.4
1.5
1.5
0.2
40
– 0.2
–
–
–
9
6
–
–
–
–
–
3
5
1
–
–
–
–
–
–
1
BB
–
–500
Typ.
500
200
850
180
960
0.7
2.2
1.5
2.3
3.3
11
13
10
10
60
40
90
–
–
–
–
–
5
–
–
4
6
–
–
6
13.75
Max.
1110
5.25
750
150
1.0
2.8
50
14
10
20
–2
5
–
–
–
–
1
–
–
5
7
2
3
–
–
–
–
–
–
–
Units
mA
mA
mA
mA
mA
mA
μA
μA
μA
μs
μs
ns
ns
ns
ns
ns
V
V
V
V
V
V
Ω
V
V
Ω
Ω
Ω
Ω
V
V
4