A8925CEB View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
A8925CEB
Allegro MicroSystems
'A8925CEB' PDF : 8 Pages View PDF
8925
3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER
WITH LINEAR CURRENT CONTROL
AND POWER DMOS OUTPUTS
ELECTRICAL CHARACTERISTICS CONTINUED
Characteristic
Symbol Test Conditions
Logic Output Voltage
(FAULT, TACH)
Error Amplifier
VOUT(0)
VOUT(1)
IOUT = 3 mA
IOUT = -50 µA
Input Bias Current
IIB
Input Offset Voltage
VOS
Input Common-Mode Voltage Range
VIC
Error Voltage Gain
AVD
Unity Gain Bandwidth
BW
VCM = 0.01 V
VCM = 1.0 V
VS OUT / VS IN , VCM = 1.0 V
Common-Mode Rejection Ratio
CMRR
Power Supply Rejection Ratio
Miscellaneous
PSRR
Current Sense Gain
Current-Sense Matching
Under-Voltage Trip Point
Hall Input Current
Hall Input Threshold
Hall Input Pull-Up Resistance
AiCS
—
VCC
IIN(0)
IIN(1)
VIN
RPU
IOUT = -1.0 A
IOUT = -1.0 A
VIN = 0 V
VIN = 5.0 V
NOTE: Negative current is defined as coming out of (sourcing) the specified device terminal.
Min.
—
2.0
Limits
Typ.
Max.
—
0.8
—
—
—
5.0
10
—
3.0
5.0
0.01
—
6.0
—
80
—
—
1.0
—
—
80
—
—
50
—
1/1k
1/1.2k
1/1.4k
—
±3.0
±5.0
8.0
—
9.5
—
-500
-1000
—
-250
-500
—
3.8
—
—
25
—
COMMUTATION TRUTH TABLE
Hall Sensor Inputs
Outputs
H1
High
High
High
Low
Low
Low
H2
Low
Low
High
High
High
Low
H3
High
Low
Low
Low
High
High
ENABLE BRAKE FAULT
High
High
High
High
High
High
High
High
High
High
High
High
High
High
High
High
High
High
OUTA
High
High
Z
Low
Low
Z
OUTB
Low
Z
High
High
Z
Low
OUTC
Z
Low
Low
Z
High
High
High
High
High
High
High
Low
Z
Low
Low
Low
High
High
Low
Z
X
X
X
Low
High
X
Z
Z
Z
Z
Z
Z
Z
X
X
X
X
Low
X
Low
Low Low
X = Irrelevant
Z = High Impedance
Units
V
V
µA
mV
V
dB
MHz
dB
dB
—
%
V
µA
µA
V
kΩ
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