a4935 Allegro MicroSystems, Inc., a4935 Datasheet - Page 6

• Manufacturer Part Number: a4935
• Description: Automotive 3-phase Mosfet Driver
• Manufacturer: Allegro MicroSystems, Inc.

A4935
ELECTRICAL CHARACTERISTICS (continued) valid at T
unless noted otherwise
Small Signal –3 dB Frequency Bandwidth
Settling Time
Output Dynamic Range
Output Current Sink
Output Current Source
VREG Supply Ripple Rejection
DC Common Mode Rejection
AC Common Mode Rejection
Common Mode Recovery Time
Output Slew Rate
Input Overload Recovery
Protection
VREG Undervoltage Lockout Threshold
Bootstrap Undervoltage Threshold
Bootstrap Undervoltage Hysteresis
VDD Undervoltage Turn-Off Threshold
VDD Undervoltage Hysteresis
VDSTH Input Range
VDSTH Input Current
VDRAIN Input Voltage
VDRAIN Input Current
Short-to-Ground Threshold Offset
Short-to-Battery Threshold Offset
Overtemperature Fault Flag Threshold
Overtemperature Fault Hysteresis
1
2
3
4
5
6
Functions correctly, but parameters are not guaranteed, below the general limits (7 V).
See Gate Drive Timing diagrams.
For input and output current specifications, negative current is defined as coming out of (sourcing) the specified device pin.
See Fault Output Timing diagram.
As V
As V
Sx
Sx
decreases, fault occurs if V
increases, fault occurs if V
Characteristics
6
5
Sx
BAT
– V
–V
LSS
Sx
> V
> V
STB
STG
. STB threshold, V
. STG threshold, V
V
V
Symbol
V
V
V
I
BOOTUVhys
V
t
CSsource
CMRR
CMRR
V
PSRR
REGUVon
REGUVoff
V
V
I
DDUVhys
V
I
V
T
SETTLE
t
BOOTUV
I
BW
CSsink
t
DRAIN
CSOUT
CMrec
DSTH
DRAIN
IDrec
DDUV
STGO
T
SR
DSTH
STBO
JFhys
JF
G
Automotive 3-Phase MOSFET Driver
J
V
To within 10% of steady state,
V
–100 μA < I
V
V
CSP = CSN = AGND, 0 to 300 kHz
CSP = CSN = 0 to 200 mV step
V
To within 100 mV of steady state,
V
10% to 90%, V
To within 10% of steady state,
V
V
V
Cx with respect to Sx
V
0 V < V
V
V
High-side on, V
High-side on, V
Low-side on, V
Low-side on, V
Temperature increasing
Recovery = T
= –40°C to 150°C, V
ID
CSOUT
ID
ID
CM
CM
ID
REG
REG
DD
DSTH
BB
STB
STG
= 10 mV
= 400 mV, V
= 250 mV to 0 V step
= –400 mV, V
= 12 V, 0 V < V
= +4 V step within CMR
falling
= 200 mVpp, 0 to 1 MHz
rising
falling
= 2 V,
= V
= V
DSTH
= 1 Vpp square wave
DSTH
DSTH
CSOUT
Test Conditions
pp
< 2 V
JF
, G = 5 V/V
+V
ID
DSTH
DSTH
DSTH
DSTH
CSOUT
– T
+ V
CSOUT
= 0 to 175 mV step
STBO
< 100 μA
JFhys
DRAIN
STGO
≥ 1 V
< 1 V
≥ 1 V
< 1 V
= 1.5 V
.
= 1.5 V
DD
.
< V
= 3 to 5.5 V, V
BB
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
BB
Min.
–150
–150
6.75
2.45
150
0.1
7.5
0.1
= 7 to 50 V,
59
50
–
–
1
–
–
–
–
–
–
–
–
–
7
–
–
–
–
Typ.
±100
±100
7.25
400
500
100
V
±50
±50
170
1.6
2.7
45
38
28
20
13
10
15
–
–
–
1
8
–
–
–
BB
Max.
– 0.3
7.75
2.85
V
150
250
150
150
8.5
–1
69
30
50
–
–
–
–
–
DD
–
–
–
–
–
–
2
–
–
–
%V
%V
Units
MHz
V/μs
mA
mA
mV
mV
mV
mV
mV
dB
dB
dB
μA
μA
ºC
ºC
ns
μs
ns
V
V
V
V
V
V
REG
REG
6