A3985 Allegro MicroSystems, Inc., A3985 Datasheet - Page 4

• Manufacturer Part Number: A3985
• Description: Digitally Programmable Dual Full-Bridge MOSFET Driver
• Manufacturer: Allegro MicroSystems, Inc.

A3985
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Output Low Voltage
Output High Voltage
Output Leakage current
ELECTRICAL CHARACTERISTICS at T
Supply and Reference
Load Supply Voltage Range
Load Supply Current
Load Supply Idle Current
Logic Supply Voltage Range
Logic Supply Current
Logic Supply Idle Current
Regulator Output
Bootstrap Diode Forward Voltage
Gate Output Drive
Turn-On Rise Time
Turn-Off Fall Time
Turn-On Propagation Delay
Turn-Off Propagation Delay
Crossover Dead Time
Pull-Up On Resistance
Pull-Down On Resistance
Short-Circuit Current – Source
Short-Circuit Current – Sink
GHx Output Voltage
GLx Output Voltage
Logic Inputs
Input Low Voltage
Input High Voltage
Input Hysteresis
Input Current
Characteristics
1
1
1
R
R
I
Symbol
SC(source)
I
V
DS(on)UP
DS(on)DN
SC(sink)
V
t
I
V
V
t
t
V
I
I
V
DEAD
V
V
fBOOT
V
Oleak
p(on)
p(off)
BBQ
I
DDQ
V
I
V
I
REG
DD
GHx
IHys
BB
GLx
t
DD
t
IN
OH
BB
OL
r
IH
f
IL
A
= 25°C, V
SDO, I
SDO, I
SDO, STR = 1, 0 V< V
f
ENABLE = High, outputs disabled
Word1:Bit D18 = 0
Word1:Bit D18 = 0
I
I
C
C
ENABLE low to gate drive on
ENABLE high to gate drive off
f
Word1:Bits D1 and D2 = 00
I
I
CBOOTx fully charged
MCK
REGInt
fBOOT
MCK
GH
GL
LOAD
LOAD
= 25 mA
= –25 mA
DD
= 4 MHz, C
= 4 MHz,
= 10 mA
OL
OH
= 30 mA
= 1000 pF, 20% to 80%
= 1000 pF, 80% to 20%
= 5 V, V
= 0.5 mA
= –0.3 mA
Dual Full-Bridge MOSFET Driver
Test Conditions
LOAD
BB
= 12 to 50 V, unless noted otherwise
= 1000 pF
O
< V
DD
Digitally Programmable
0.7 V
V
V
11.25
V
115 Northeast Cutoff, Box 15036
–140
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
C
Min.
160
REG
150
3.0
0.6
0.5
0.2
0.5
12
80
40
30
14
–1
DD
–1
– 0.2
–
–
–
–
–
–
–
–
DD
–
–
–110
Typ.
120
120
120
200
300
0.8
60
40
19
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0.3 V
Max.
0.75
100
300
160
–80
250
5.5
0.5
50
10
10
13
80
55
24
6
1
–
–
–
–
–
–
1
1
DD
Units
mA
mA
mA
mA
mA
mV
μA
μA
μA
μA
ns
ns
ns
ns
μs
V
V
V
V
Ω
Ω
V
V
V
V
V
V
4