8958 Ver la hoja de datos (PDF) - Allegro MicroSystems
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8958 Datasheet PDF : 8 Pages
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8958
VOICE COIL
MOTOR DRIVER
ELECTRICAL CHARACTERISTICS at TA = +25°C, VCC = VBB = 12 V
Characteristic
Symbol
Test Conditions
Logic Supply Voltage Range
VCC
Operating
Logic Supply UV Threshold
Logic Supply UV Hysteresis
VCC
∆VCC
High-to-low transition
Supply Current
IBB
VOUT = 6 V, no load
Inhibited Supply Current
ICC
—
IBB + ICC, V2 ≥ 1.7 V
Thermal Shutdown Temp.
TJ
Thermal Shutdown Hysteresis
∆TJ
Output Power Drivers
Output Saturation Voltage
VSAT
IOUT = 250 mA
IOUT = 800 mA
IOUT = -250 mA
IOUT = -800 mA
Total Saturation Voltage
(Source + Sink)
Input Offset Voltage
Input Offset Drift
Input Bias Current
Input Offset Current
Differential Sense Input Current
Large Signal Gain
Slew Rate
VSAT
VIO
∆VIO
IIN
IIO
IID
AVS
SR
ILOAD = 250 mA
ILOAD = 800 mA
VCM = 6 V
Except INA+, VCM = 6 V
INA+ to SENSEIN+ = 12 kΩ, TJ = 25°C
INB only, VCM = 6 V
IOUT = 5 mA
IOUT = 500 mA
VOUT = 2 V to 10 V, IOUT = ±500 mA
Unity Gain Bandwidth
BW
Amplifier A
Amplifier B
Common-Mode Rejection
Clamp Diode Forward Voltage
High-Side Current Limit
kCMR
VF
IOUT
VCM = 1 V to 10 V
IF = 800 mA, V2 ≥ 1.7 V
TJ = 25°C
Power Supply Rejection
kSVR
VCC = 4 V to 15 V, VCM = 1.5 V
Negative current is defined as coming out of (sourcing) the specified device terminal.
Typical Data is for design information only.
Min.
8.0
—
—
—
—
—
—
—
Limits
Typ. Max.
12 16
2.8 3.0
200 —
2.0 —
23
—
3.0 8.0
165 —
8.0 —
Units
V
V
mV
mA
mA
mA
°C
°C
—
250 —
mV
—
450 —
mV
—
750 —
mV
—
950 —
mV
—
1.0 1.4
V
—
1.4 2.0
V
—
5.0 8.0
mV
—
—
25
µV/°C
— -150 -500
nA
69
84 105
µA/V
—
— 200
nA
— ±300 —
µA
—
3.0 —
mA
1.5
5.0
—
V/mV
—
4.0 —
V/µs
0.5
1.0 1.7
MHz
0.5
2.0 2.2
MHz
70
90
—
dB
—
1.0 1.2
V
—
1.0 1.2
A
70
90
—
dB
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